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2430 lines
78 KiB
C
2430 lines
78 KiB
C
/* ASF muxer plugin for GStreamer
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* Copyright (C) 2009 Thiago Santos <thiagoss@embedded.ufcg.edu.br>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/* based on:
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* - avimux (by Ronald Bultje and Mark Nauwelaerts)
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* - qtmux (by Thiago Santos and Mark Nauwelaerts)
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*/
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/**
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* SECTION:element-asfmux
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*
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* Muxes media into an ASF file/stream.
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*
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* Pad names are either video_xx or audio_xx, where 'xx' is the
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* stream number of the stream that goes through that pad. Stream numbers
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* are assigned sequentially, starting from 1.
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*
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* <refsect2>
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* <title>Example launch lines</title>
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* <para>(write everything in one line, without the backslash characters)</para>
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* |[
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* gst-launch videotestsrc num-buffers=250 \
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* ! "video/x-raw-yuv,format=(fourcc)I420,framerate=(fraction)25/1" ! ffenc_wmv2 \
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* ! asfmux name=mux ! filesink location=test.asf \
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* audiotestsrc num-buffers=440 ! audioconvert \
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* ! "audio/x-raw-int,rate=44100" ! ffenc_wmav2 ! mux.
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* ]| This creates an ASF file containing an WMV video stream
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* with a test picture and WMA audio stream of a test sound.
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*
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* <title>Live streaming</title>
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* asfmux and rtpasfpay are capable of generating a live asf stream.
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* asfmux has to set its 'is-live' property to true, because in this
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* mode it won't try to seek back to the start of the file to replace
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* some fields that couldn't be known at the file start. In this mode,
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* it won't also send indexes at the end of the data packets (the actual
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* media content)
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* the following pipelines are an example of this usage.
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* <para>(write everything in one line, without the backslash characters)</para>
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* Server (sender)
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* |[
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* gst-launch -ve videotestsrc ! ffenc_wmv2 ! asfmux name=mux is-live=true \
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* ! rtpasfpay ! udpsink host=127.0.0.1 port=3333 \
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* audiotestsrc ! ffenc_wmav2 ! mux.
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* ]|
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* Client (receiver)
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* |[
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* gst-launch udpsrc port=3333 ! "caps_from_rtpasfpay_at_sender" \
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* ! rtpasfdepay ! decodebin2 name=d ! queue \
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* ! ffmpegcolorspace ! autovideosink \
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* d. ! queue ! audioconvert ! autoaudiosink
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* ]|
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <gst/gst-i18n-plugin.h>
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#include "gstasfmux.h"
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#define DEFAULT_SIMPLE_INDEX_TIME_INTERVAL G_GUINT64_CONSTANT (10000000)
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#define MAX_PAYLOADS_IN_A_PACKET 63
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GST_DEBUG_CATEGORY_STATIC (asfmux_debug);
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#define GST_CAT_DEFAULT asfmux_debug
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enum
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{
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PROP_0,
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PROP_PACKET_SIZE,
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PROP_PREROLL,
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PROP_MERGE_STREAM_TAGS,
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PROP_PADDING,
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PROP_IS_LIVE,
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PROP_STREAMABLE
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};
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/* Stores a tag list for the available/known tags
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* in an ASF file
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* Also stores the sizes those entries would use in a
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* content description object and extended content
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* description object
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*/
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typedef struct
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{
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GstTagList *tags;
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guint64 cont_desc_size;
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guint64 ext_cont_desc_size;
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} GstAsfTags;
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/* Helper struct to be used as user data
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* in gst_tag_foreach function for writing
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* each tag for the metadata objects
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*
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* stream_num is used only for stream dependent tags
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*/
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typedef struct
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{
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GstAsfMux *asfmux;
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guint8 *buf;
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guint16 count;
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guint64 size;
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guint16 stream_num;
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} GstAsfExtContDescData;
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typedef GstAsfExtContDescData GstAsfMetadataObjData;
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#define DEFAULT_PACKET_SIZE 4800
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#define DEFAULT_PREROLL 5000
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#define DEFAULT_MERGE_STREAM_TAGS TRUE
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#define DEFAULT_PADDING 0
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#define DEFAULT_STREAMABLE FALSE
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static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-ms-asf, " "parsed = (boolean) true")
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);
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static GstStaticPadTemplate video_sink_factory =
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GST_STATIC_PAD_TEMPLATE ("video_%u",
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GST_PAD_SINK,
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GST_PAD_REQUEST,
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GST_STATIC_CAPS ("video/x-wmv, wmvversion = (int) [1,3]"));
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static GstStaticPadTemplate audio_sink_factory =
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GST_STATIC_PAD_TEMPLATE ("audio_%u",
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GST_PAD_SINK,
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GST_PAD_REQUEST,
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GST_STATIC_CAPS ("audio/x-wma, wmaversion = (int) [1,3]; "
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"audio/mpeg, layer = (int) 3, mpegversion = (int) 1, "
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"channels = (int) [1,2], rate = (int) [8000,96000]"));
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static void gst_asf_mux_base_init (gpointer g_class);
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static void gst_asf_mux_class_init (GstAsfMuxClass * klass);
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static void gst_asf_mux_init (GstAsfMux * asfmux);
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static GstPad *gst_asf_mux_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * name);
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static void gst_asf_mux_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec);
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static void gst_asf_mux_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec);
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static GstStateChangeReturn gst_asf_mux_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean gst_asf_mux_sink_event (GstPad * pad, GstEvent * event);
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static void gst_asf_mux_pad_reset (GstAsfPad * data);
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static GstFlowReturn gst_asf_mux_collected (GstCollectPads * collect,
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gpointer data);
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static GstElementClass *parent_class = NULL;
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GType
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gst_asf_mux_get_type (void)
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{
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static GType asfmux_type = 0;
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if (!asfmux_type) {
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static const GTypeInfo asfmux_info = {
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sizeof (GstAsfMuxClass),
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gst_asf_mux_base_init,
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NULL,
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(GClassInitFunc) gst_asf_mux_class_init,
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NULL,
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NULL,
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sizeof (GstAsfMux),
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0,
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(GInstanceInitFunc) gst_asf_mux_init,
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};
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static const GInterfaceInfo tag_setter_info = {
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NULL,
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NULL,
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NULL
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};
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asfmux_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstAsfMux", &asfmux_info, 0);
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g_type_add_interface_static (asfmux_type, GST_TYPE_TAG_SETTER,
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&tag_setter_info);
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}
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return asfmux_type;
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}
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static void
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gst_asf_mux_reset (GstAsfMux * asfmux)
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{
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asfmux->state = GST_ASF_MUX_STATE_NONE;
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asfmux->stream_number = 0;
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asfmux->data_object_size = 0;
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asfmux->data_object_position = 0;
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asfmux->file_properties_object_position = 0;
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asfmux->total_data_packets = 0;
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asfmux->file_size = 0;
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asfmux->packet_size = 0;
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asfmux->first_ts = GST_CLOCK_TIME_NONE;
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if (asfmux->payloads) {
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GSList *walk;
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for (walk = asfmux->payloads; walk; walk = g_slist_next (walk)) {
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gst_asf_payload_free ((AsfPayload *) walk->data);
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walk->data = NULL;
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}
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g_slist_free (asfmux->payloads);
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}
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asfmux->payloads = NULL;
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asfmux->payload_data_size = 0;
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asfmux->file_id.v1 = 0;
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asfmux->file_id.v2 = 0;
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asfmux->file_id.v3 = 0;
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asfmux->file_id.v4 = 0;
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gst_tag_setter_reset_tags (GST_TAG_SETTER (asfmux));
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}
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static void
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gst_asf_mux_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&src_factory));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&audio_sink_factory));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&video_sink_factory));
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gst_element_class_set_details_simple (element_class, "ASF muxer",
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"Codec/Muxer",
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"Muxes audio and video into an ASF stream",
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"Thiago Santos <thiagoss@embedded.ufcg.edu.br>");
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GST_DEBUG_CATEGORY_INIT (asfmux_debug, "asfmux", 0, "Muxer for ASF streams");
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}
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static void
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gst_asf_mux_finalize (GObject * object)
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{
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GstAsfMux *asfmux;
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asfmux = GST_ASF_MUX (object);
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gst_asf_mux_reset (asfmux);
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gst_object_unref (asfmux->collect);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_asf_mux_class_init (GstAsfMuxClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->get_property = gst_asf_mux_get_property;
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gobject_class->set_property = gst_asf_mux_set_property;
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gobject_class->finalize = gst_asf_mux_finalize;
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g_object_class_install_property (gobject_class, PROP_PACKET_SIZE,
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g_param_spec_uint ("packet-size", "Packet size",
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"The ASF packets size (bytes)",
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ASF_MULTIPLE_PAYLOAD_HEADER_SIZE + 1, G_MAXUINT32,
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DEFAULT_PACKET_SIZE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_PREROLL,
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g_param_spec_uint64 ("preroll", "Preroll",
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"The preroll time (milisecs)",
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0, G_MAXUINT64,
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DEFAULT_PREROLL,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_MERGE_STREAM_TAGS,
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g_param_spec_boolean ("merge-stream-tags", "Merge Stream Tags",
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"If the stream metadata (received as events in the sink) should be "
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"merged to the main file metadata.",
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DEFAULT_MERGE_STREAM_TAGS,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_PADDING,
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g_param_spec_uint64 ("padding", "Padding",
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"Size of the padding object to be added to the end of the header. "
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"If this less than 24 (the smaller size of an ASF object), "
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"no padding is added.",
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0, G_MAXUINT64,
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DEFAULT_PADDING,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_IS_LIVE,
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g_param_spec_boolean ("is-live", "Is Live (deprecated)",
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"Deprecated in 0.10.20, use 'streamable' instead",
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DEFAULT_STREAMABLE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_STREAMABLE,
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g_param_spec_boolean ("streamable", "Streamable",
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"If set to true, the output should be as if it is to be streamed "
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"and hence no indexes written or duration written.",
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DEFAULT_STREAMABLE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
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gstelement_class->request_new_pad =
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GST_DEBUG_FUNCPTR (gst_asf_mux_request_new_pad);
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gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_asf_mux_change_state);
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}
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static void
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gst_asf_mux_init (GstAsfMux * asfmux)
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{
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GstCaps *caps;
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asfmux->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
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caps = gst_caps_copy (gst_pad_get_pad_template_caps (asfmux->srcpad));
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gst_pad_set_caps (asfmux->srcpad, caps);
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gst_caps_unref (caps);
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gst_pad_use_fixed_caps (asfmux->srcpad);
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gst_element_add_pad (GST_ELEMENT (asfmux), asfmux->srcpad);
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asfmux->collect = gst_collect_pads_new ();
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gst_collect_pads_set_function (asfmux->collect,
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(GstCollectPadsFunction) GST_DEBUG_FUNCPTR (gst_asf_mux_collected),
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asfmux);
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asfmux->payloads = NULL;
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asfmux->prop_packet_size = DEFAULT_PACKET_SIZE;
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asfmux->prop_preroll = DEFAULT_PREROLL;
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asfmux->prop_merge_stream_tags = DEFAULT_MERGE_STREAM_TAGS;
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asfmux->prop_padding = DEFAULT_PADDING;
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asfmux->prop_streamable = DEFAULT_STREAMABLE;
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gst_asf_mux_reset (asfmux);
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}
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static gboolean
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gst_asf_mux_sink_event (GstPad * pad, GstEvent * event)
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{
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gboolean ret;
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GstAsfMux *asfmux;
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GstAsfPad *asfpad = (GstAsfPad *) gst_pad_get_element_private (pad);
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asfmux = GST_ASF_MUX_CAST (gst_pad_get_parent (pad));
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_TAG:{
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GST_DEBUG_OBJECT (asfmux, "received tag event");
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/* we discard tag events that come after we started
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* writing the headers, because tags are to be in
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* the headers
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*/
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if (asfmux->state == GST_ASF_MUX_STATE_NONE) {
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GstTagList *list = NULL;
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gst_event_parse_tag (event, &list);
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if (asfmux->merge_stream_tags) {
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GstTagSetter *setter = GST_TAG_SETTER (asfmux);
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const GstTagMergeMode mode =
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gst_tag_setter_get_tag_merge_mode (setter);
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gst_tag_setter_merge_tags (setter, list, mode);
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} else {
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if (asfpad->taglist == NULL) {
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asfpad->taglist = gst_tag_list_new ();
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}
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gst_tag_list_insert (asfpad->taglist, list, GST_TAG_MERGE_REPLACE);
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}
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}
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break;
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}
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default:
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break;
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}
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ret = asfmux->collect_event (pad, event);
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gst_object_unref (asfmux);
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return ret;
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}
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/**
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* gst_asf_mux_push_buffer:
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* @asfmux: #GstAsfMux that should push the buffer
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* @buf: #GstBuffer to be pushed
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*
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* Pushes a buffer downstream and adds its size to the total file size
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*
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* Returns: the result of #gst_pad_push on the buffer
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*/
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static GstFlowReturn
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gst_asf_mux_push_buffer (GstAsfMux * asfmux, GstBuffer * buf)
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{
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GstFlowReturn ret;
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gst_buffer_set_caps (buf, GST_PAD_CAPS (asfmux->srcpad));
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ret = gst_pad_push (asfmux->srcpad, buf);
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if (ret == GST_FLOW_OK)
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asfmux->file_size += GST_BUFFER_SIZE (buf);
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return ret;
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}
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/**
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* content_description_calc_size_for_tag:
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* @taglist: the #GstTagList that contains the tag
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* @tag: the tag's name
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* @user_data: a #GstAsfTags struct for putting the results
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*
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* Function that has the #GstTagForEach signature and
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* is used to calculate the size in bytes for each tag
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* that can be contained in asf's content description object
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* and extended content description object. This size is added
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* to the total size for each of that objects in the #GstAsfTags
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* struct passed in the user_data pointer.
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*/
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static void
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content_description_calc_size_for_tag (const GstTagList * taglist,
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const gchar * tag, gpointer user_data)
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{
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const gchar *asftag = gst_asf_get_asf_tag (tag);
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GValue value = { 0 };
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guint type;
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GstAsfTags *asftags = (GstAsfTags *) user_data;
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guint content_size;
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if (asftag == NULL)
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return;
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if (!gst_tag_list_copy_value (&value, taglist, tag)) {
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return;
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}
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type = gst_asf_get_tag_field_type (&value);
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switch (type) {
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case ASF_TAG_TYPE_UNICODE_STR:
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{
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const gchar *text;
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text = g_value_get_string (&value);
|
|
/* +1 -> because of the \0 at the end
|
|
* 2* -> because we have uft8, and asf demands utf16
|
|
*/
|
|
content_size = 2 * (1 + g_utf8_strlen (text, -1));
|
|
|
|
if (gst_asf_tag_present_in_content_description (tag)) {
|
|
asftags->cont_desc_size += content_size;
|
|
}
|
|
}
|
|
break;
|
|
case ASF_TAG_TYPE_DWORD:
|
|
content_size = 4;
|
|
break;
|
|
default:
|
|
GST_WARNING ("Unhandled asf tag field type %u for tag %s", type, tag);
|
|
g_value_reset (&value);
|
|
return;
|
|
}
|
|
if (asftag) {
|
|
/* size of the tag content in utf16 +
|
|
* size of the tag name +
|
|
* 3 uint16 (size of the tag name string,
|
|
* size of the tag content string and
|
|
* type of content
|
|
*/
|
|
asftags->ext_cont_desc_size += content_size +
|
|
(g_utf8_strlen (asftag, -1) + 1) * 2 + 6;
|
|
}
|
|
gst_tag_list_add_value (asftags->tags, GST_TAG_MERGE_REPLACE, tag, &value);
|
|
g_value_reset (&value);
|
|
}
|
|
|
|
/* FIXME
|
|
* it is awful to keep track of the size here
|
|
* and get the same tags in the writing function */
|
|
/**
|
|
* gst_asf_mux_get_content_description_tags:
|
|
* @asfmux: #GstAsfMux to have its tags proccessed
|
|
* @asftags: #GstAsfTags to hold the results
|
|
*
|
|
* Inspects the tags received by the GstTagSetter interface
|
|
* or possibly by sink tag events and calculates the total
|
|
* size needed for the default and extended content description objects.
|
|
* This results and a copy of the #GstTagList
|
|
* are stored in the #GstAsfTags. We store a copy so that
|
|
* the sizes estimated here mantain the same until they are
|
|
* written to the asf file.
|
|
*/
|
|
static void
|
|
gst_asf_mux_get_content_description_tags (GstAsfMux * asfmux,
|
|
GstAsfTags * asftags)
|
|
{
|
|
const GstTagList *tags;
|
|
|
|
tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (asfmux));
|
|
if (tags && !gst_tag_list_is_empty (tags)) {
|
|
if (asftags->tags != NULL) {
|
|
gst_tag_list_free (asftags->tags);
|
|
}
|
|
asftags->tags = gst_tag_list_new ();
|
|
asftags->cont_desc_size = 0;
|
|
asftags->ext_cont_desc_size = 0;
|
|
|
|
GST_DEBUG_OBJECT (asfmux, "Processing tags");
|
|
gst_tag_list_foreach (tags, content_description_calc_size_for_tag, asftags);
|
|
} else {
|
|
GST_DEBUG_OBJECT (asfmux, "No tags received");
|
|
}
|
|
|
|
if (asftags->cont_desc_size > 0) {
|
|
asftags->cont_desc_size += ASF_CONTENT_DESCRIPTION_OBJECT_SIZE;
|
|
}
|
|
if (asftags->ext_cont_desc_size > 0) {
|
|
asftags->ext_cont_desc_size += ASF_EXT_CONTENT_DESCRIPTION_OBJECT_SIZE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* add_metadata_tag_size:
|
|
* @taglist: #GstTagList
|
|
* @tag: tag name
|
|
* @user_data: pointer to a guint to store the result
|
|
*
|
|
* GstTagForeachFunc implementation that accounts the size of
|
|
* each tag in the taglist and adds them to the guint pointed
|
|
* by the user_data
|
|
*/
|
|
static void
|
|
add_metadata_tag_size (const GstTagList * taglist, const gchar * tag,
|
|
gpointer user_data)
|
|
{
|
|
const gchar *asftag = gst_asf_get_asf_tag (tag);
|
|
GValue value = { 0 };
|
|
guint type;
|
|
guint content_size;
|
|
guint *total_size = (guint *) user_data;
|
|
|
|
if (asftag == NULL)
|
|
return;
|
|
|
|
if (!gst_tag_list_copy_value (&value, taglist, tag)) {
|
|
return;
|
|
}
|
|
type = gst_asf_get_tag_field_type (&value);
|
|
switch (type) {
|
|
case ASF_TAG_TYPE_UNICODE_STR:
|
|
{
|
|
const gchar *text;
|
|
|
|
text = g_value_get_string (&value);
|
|
/* +1 -> because of the \0 at the end
|
|
* 2* -> because we have uft8, and asf demands utf16
|
|
*/
|
|
content_size = 2 * (1 + g_utf8_strlen (text, -1));
|
|
}
|
|
break;
|
|
case ASF_TAG_TYPE_DWORD:
|
|
content_size = 4;
|
|
break;
|
|
default:
|
|
GST_WARNING ("Unhandled asf tag field type %u for tag %s", type, tag);
|
|
g_value_reset (&value);
|
|
return;
|
|
}
|
|
/* size of reserved (2) +
|
|
* size of stream number (2) +
|
|
* size of the tag content in utf16 +
|
|
* size of the tag name +
|
|
* 2 uint16 (size of the tag name string and type of content) +
|
|
* 1 uint32 (size of the data)
|
|
*/
|
|
*total_size +=
|
|
4 + content_size + (g_utf8_strlen (asftag, -1) + 1) * 2 + 4 + 4;
|
|
g_value_reset (&value);
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_get_metadata_object_size:
|
|
* @asfmux: #GstAsfMux
|
|
* @asfpad: pad for which the metadata object size should be calculated
|
|
*
|
|
* Calculates the size of the metadata object for the tags of the stream
|
|
* handled by the asfpad in the parameter
|
|
*
|
|
* Returns: The size calculated
|
|
*/
|
|
static guint
|
|
gst_asf_mux_get_metadata_object_size (GstAsfMux * asfmux, GstAsfPad * asfpad)
|
|
{
|
|
guint size = ASF_METADATA_OBJECT_SIZE;
|
|
if (asfpad->taglist == NULL || gst_tag_list_is_empty (asfpad->taglist))
|
|
return 0;
|
|
|
|
gst_tag_list_foreach (asfpad->taglist, add_metadata_tag_size, &size);
|
|
return size;
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_get_headers_size:
|
|
* @asfmux: #GstAsfMux
|
|
*
|
|
* Calculates the size of the headers of the asf stream
|
|
* to be generated by this #GstAsfMux.
|
|
* Its used for determining the size of the buffer to allocate
|
|
* to exactly fit the headers in.
|
|
* Padding and metadata objects sizes are not included.
|
|
*
|
|
* Returns: the calculated size
|
|
*/
|
|
static guint
|
|
gst_asf_mux_get_headers_size (GstAsfMux * asfmux)
|
|
{
|
|
GSList *walk;
|
|
gint stream_num = 0;
|
|
guint size = ASF_HEADER_OBJECT_SIZE +
|
|
ASF_FILE_PROPERTIES_OBJECT_SIZE + ASF_HEADER_EXTENSION_OBJECT_SIZE;
|
|
|
|
/* per stream data */
|
|
for (walk = asfmux->collect->data; walk; walk = g_slist_next (walk)) {
|
|
GstAsfPad *asfpad = (GstAsfPad *) walk->data;
|
|
|
|
if (asfpad->is_audio)
|
|
size += ASF_AUDIO_SPECIFIC_DATA_SIZE;
|
|
else
|
|
size += ASF_VIDEO_SPECIFIC_DATA_SIZE;
|
|
|
|
if (asfpad->codec_data)
|
|
size += GST_BUFFER_SIZE (asfpad->codec_data);
|
|
|
|
stream_num++;
|
|
}
|
|
size += stream_num * (ASF_STREAM_PROPERTIES_OBJECT_SIZE +
|
|
ASF_EXTENDED_STREAM_PROPERTIES_OBJECT_SIZE);
|
|
|
|
return size;
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_write_header_object:
|
|
* @asfmux:
|
|
* @buf: pointer to the data pointer
|
|
* @size: size of the header object
|
|
* @child_objects: number of children objects inside the main header object
|
|
*
|
|
* Writes the main asf header object start. The buffer pointer
|
|
* is incremented to the next writing position.
|
|
*/
|
|
static void
|
|
gst_asf_mux_write_header_object (GstAsfMux * asfmux, guint8 ** buf,
|
|
guint64 size, guint32 child_objects)
|
|
{
|
|
gst_asf_put_guid (*buf, guids[ASF_HEADER_OBJECT_INDEX]);
|
|
GST_WRITE_UINT64_LE (*buf + 16, size); /* object size */
|
|
GST_WRITE_UINT32_LE (*buf + 24, child_objects); /* # of child objects */
|
|
GST_WRITE_UINT8 (*buf + 28, 0x01); /* reserved */
|
|
GST_WRITE_UINT8 (*buf + 29, 0x02); /* reserved */
|
|
*buf += ASF_HEADER_OBJECT_SIZE;
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_write_file_properties:
|
|
* @asfmux:
|
|
* @buf: pointer to the data pointer
|
|
*
|
|
* Writes the file properties object to the buffer. The buffer pointer
|
|
* is incremented to the next writing position.
|
|
*/
|
|
static void
|
|
gst_asf_mux_write_file_properties (GstAsfMux * asfmux, guint8 ** buf)
|
|
{
|
|
gst_asf_put_guid (*buf, guids[ASF_FILE_PROPERTIES_OBJECT_INDEX]);
|
|
GST_WRITE_UINT64_LE (*buf + 16, ASF_FILE_PROPERTIES_OBJECT_SIZE); /* object size */
|
|
gst_asf_put_guid (*buf + 24, asfmux->file_id);
|
|
GST_WRITE_UINT64_LE (*buf + 40, 0); /* file size - needs update */
|
|
gst_asf_put_time (*buf + 48, gst_asf_get_current_time ()); /* creation time */
|
|
GST_WRITE_UINT64_LE (*buf + 56, 0); /* data packets - needs update */
|
|
GST_WRITE_UINT64_LE (*buf + 64, 0); /* play duration - needs update */
|
|
GST_WRITE_UINT64_LE (*buf + 72, 0); /* send duration - needs update */
|
|
GST_WRITE_UINT64_LE (*buf + 80, asfmux->preroll); /* preroll */
|
|
GST_WRITE_UINT32_LE (*buf + 88, 0x1); /* flags - broadcast on */
|
|
GST_WRITE_UINT32_LE (*buf + 92, asfmux->packet_size); /* minimum data packet size */
|
|
GST_WRITE_UINT32_LE (*buf + 96, asfmux->packet_size); /* maximum data packet size */
|
|
GST_WRITE_UINT32_LE (*buf + 100, 0); /* maximum bitrate TODO */
|
|
|
|
*buf += ASF_FILE_PROPERTIES_OBJECT_SIZE;
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_write_stream_properties:
|
|
* @asfmux:
|
|
* @buf: pointer to the data pointer
|
|
* @asfpad: Pad that handles the stream
|
|
*
|
|
* Writes the stream properties object in the buffer
|
|
* for the stream handled by the #GstAsfPad passed.
|
|
* The pointer is incremented to the next writing position
|
|
*/
|
|
static void
|
|
gst_asf_mux_write_stream_properties (GstAsfMux * asfmux, guint8 ** buf,
|
|
GstAsfPad * asfpad)
|
|
{
|
|
guint32 codec_data_length = 0;
|
|
guint32 media_specific_data_length = 0;
|
|
guint16 flags = 0;
|
|
|
|
/* codec specific data length */
|
|
if (asfpad->codec_data)
|
|
codec_data_length = GST_BUFFER_SIZE (asfpad->codec_data);
|
|
if (asfpad->is_audio)
|
|
media_specific_data_length = ASF_AUDIO_SPECIFIC_DATA_SIZE;
|
|
else
|
|
media_specific_data_length = ASF_VIDEO_SPECIFIC_DATA_SIZE;
|
|
|
|
GST_DEBUG_OBJECT (asfmux, "Stream %" G_GUINT16_FORMAT " codec data length: %"
|
|
G_GUINT32_FORMAT ", media specific data length: %" G_GUINT32_FORMAT,
|
|
(guint16) asfpad->stream_number, codec_data_length,
|
|
media_specific_data_length);
|
|
|
|
gst_asf_put_guid (*buf, guids[ASF_STREAM_PROPERTIES_OBJECT_INDEX]);
|
|
GST_WRITE_UINT64_LE (*buf + 16, ASF_STREAM_PROPERTIES_OBJECT_SIZE + codec_data_length + media_specific_data_length); /* object size */
|
|
|
|
/* stream type */
|
|
if (asfpad->is_audio)
|
|
gst_asf_put_guid (*buf + 24, guids[ASF_AUDIO_MEDIA_INDEX]);
|
|
else
|
|
gst_asf_put_guid (*buf + 24, guids[ASF_VIDEO_MEDIA_INDEX]);
|
|
/* error correction */
|
|
if (asfpad->is_audio) {
|
|
gst_asf_put_guid (*buf + 40, guids[ASF_NO_ERROR_CORRECTION_INDEX]);
|
|
} else {
|
|
gst_asf_put_guid (*buf + 40, guids[ASF_NO_ERROR_CORRECTION_INDEX]);
|
|
}
|
|
GST_WRITE_UINT64_LE (*buf + 56, 0); /* time offset */
|
|
|
|
GST_WRITE_UINT32_LE (*buf + 64, codec_data_length + media_specific_data_length); /* type specific data length */
|
|
GST_WRITE_UINT32_LE (*buf + 68, 0); /* error correction data length */
|
|
|
|
flags = (asfpad->stream_number & 0x7F);
|
|
GST_WRITE_UINT16_LE (*buf + 72, flags);
|
|
GST_WRITE_UINT32_LE (*buf + 74, 0); /* reserved */
|
|
|
|
*buf += ASF_STREAM_PROPERTIES_OBJECT_SIZE;
|
|
/* audio specific data */
|
|
if (asfpad->is_audio) {
|
|
GstAsfAudioPad *audiopad = (GstAsfAudioPad *) asfpad;
|
|
GST_WRITE_UINT16_LE (*buf, audiopad->audioinfo.format);
|
|
GST_WRITE_UINT16_LE (*buf + 2, audiopad->audioinfo.channels);
|
|
GST_WRITE_UINT32_LE (*buf + 4, audiopad->audioinfo.rate);
|
|
GST_WRITE_UINT32_LE (*buf + 8, audiopad->audioinfo.av_bps);
|
|
GST_WRITE_UINT16_LE (*buf + 12, audiopad->audioinfo.blockalign);
|
|
GST_WRITE_UINT16_LE (*buf + 14, audiopad->audioinfo.size);
|
|
GST_WRITE_UINT16_LE (*buf + 16, codec_data_length);
|
|
|
|
GST_DEBUG_OBJECT (asfmux,
|
|
"wave formatex values: codec_id=%" G_GUINT16_FORMAT ", channels=%"
|
|
G_GUINT16_FORMAT ", rate=%" G_GUINT32_FORMAT ", bytes_per_sec=%"
|
|
G_GUINT32_FORMAT ", block_alignment=%" G_GUINT16_FORMAT
|
|
", bits_per_sample=%" G_GUINT16_FORMAT ", codec_data_length=%"
|
|
G_GUINT16_FORMAT, audiopad->audioinfo.format,
|
|
audiopad->audioinfo.channels, audiopad->audioinfo.rate,
|
|
audiopad->audioinfo.av_bps, audiopad->audioinfo.blockalign,
|
|
audiopad->audioinfo.size, codec_data_length);
|
|
|
|
|
|
*buf += ASF_AUDIO_SPECIFIC_DATA_SIZE;
|
|
} else {
|
|
GstAsfVideoPad *videopad = (GstAsfVideoPad *) asfpad;
|
|
GST_WRITE_UINT32_LE (*buf, (guint32) videopad->vidinfo.width);
|
|
GST_WRITE_UINT32_LE (*buf + 4, (guint32) videopad->vidinfo.height);
|
|
GST_WRITE_UINT8 (*buf + 8, 2);
|
|
|
|
/* the BITMAPINFOHEADER size + codec_data size */
|
|
GST_WRITE_UINT16_LE (*buf + 9,
|
|
ASF_VIDEO_SPECIFIC_DATA_SIZE + codec_data_length - 11);
|
|
|
|
/* BITMAPINFOHEADER */
|
|
GST_WRITE_UINT32_LE (*buf + 11,
|
|
ASF_VIDEO_SPECIFIC_DATA_SIZE + codec_data_length - 11);
|
|
gst_asf_put_i32 (*buf + 15, videopad->vidinfo.width);
|
|
gst_asf_put_i32 (*buf + 19, videopad->vidinfo.height);
|
|
GST_WRITE_UINT16_LE (*buf + 23, 1); /* reserved */
|
|
GST_WRITE_UINT16_LE (*buf + 25, videopad->vidinfo.bit_cnt);
|
|
GST_WRITE_UINT32_LE (*buf + 27, videopad->vidinfo.compression);
|
|
GST_WRITE_UINT32_LE (*buf + 31, videopad->vidinfo.width *
|
|
videopad->vidinfo.height * videopad->vidinfo.bit_cnt);
|
|
GST_WRITE_UINT32_LE (*buf + 35, videopad->vidinfo.xpels_meter);
|
|
GST_WRITE_UINT32_LE (*buf + 39, videopad->vidinfo.ypels_meter);
|
|
GST_WRITE_UINT32_LE (*buf + 43, videopad->vidinfo.num_colors);
|
|
GST_WRITE_UINT32_LE (*buf + 47, videopad->vidinfo.imp_colors);
|
|
|
|
*buf += ASF_VIDEO_SPECIFIC_DATA_SIZE;
|
|
}
|
|
|
|
if (codec_data_length > 0)
|
|
memcpy (*buf, GST_BUFFER_DATA (asfpad->codec_data), codec_data_length);
|
|
|
|
*buf += codec_data_length;
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_write_header_extension:
|
|
* @asfmux:
|
|
* @buf: pointer to the buffer pointer
|
|
* @extension_size: size of the extensions
|
|
*
|
|
* Writes the header of the header extension object. The buffer pointer
|
|
* is incremented to the next writing position (the header extension object
|
|
* childs should be writen from that point)
|
|
*/
|
|
static void
|
|
gst_asf_mux_write_header_extension (GstAsfMux * asfmux, guint8 ** buf,
|
|
guint64 extension_size)
|
|
{
|
|
gst_asf_put_guid (*buf, guids[ASF_HEADER_EXTENSION_OBJECT_INDEX]);
|
|
GST_WRITE_UINT64_LE (*buf + 16, ASF_HEADER_EXTENSION_OBJECT_SIZE + extension_size); /* object size */
|
|
gst_asf_put_guid (*buf + 24, guids[ASF_RESERVED_1_INDEX]); /* reserved */
|
|
GST_WRITE_UINT16_LE (*buf + 40, 6); /* reserved */
|
|
GST_WRITE_UINT32_LE (*buf + 42, extension_size); /* header extension data size */
|
|
*buf += ASF_HEADER_EXTENSION_OBJECT_SIZE;
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_write_extended_stream_properties:
|
|
* @asfmux:
|
|
* @buf: pointer to the buffer pointer
|
|
* @asfpad: Pad that handles the stream of the properties to be writen
|
|
*
|
|
* Writes the extended stream properties object (that is part of the
|
|
* header extension objects) for the stream handled by asfpad
|
|
*/
|
|
static void
|
|
gst_asf_mux_write_extended_stream_properties (GstAsfMux * asfmux, guint8 ** buf,
|
|
GstAsfPad * asfpad)
|
|
{
|
|
gst_asf_put_guid (*buf, guids[ASF_EXTENDED_STREAM_PROPERTIES_OBJECT_INDEX]);
|
|
GST_WRITE_UINT64_LE (*buf + 16, ASF_EXTENDED_STREAM_PROPERTIES_OBJECT_SIZE);
|
|
GST_WRITE_UINT64_LE (*buf + 24, 0); /* start time */
|
|
GST_WRITE_UINT64_LE (*buf + 32, 0); /* end time */
|
|
GST_WRITE_UINT32_LE (*buf + 40, asfpad->bitrate); /* bitrate */
|
|
GST_WRITE_UINT32_LE (*buf + 44, 0); /* buffer size */
|
|
GST_WRITE_UINT32_LE (*buf + 48, 0); /* initial buffer fullness */
|
|
GST_WRITE_UINT32_LE (*buf + 52, asfpad->bitrate); /* alternate data bitrate */
|
|
GST_WRITE_UINT32_LE (*buf + 56, 0); /* alternate buffer size */
|
|
GST_WRITE_UINT32_LE (*buf + 60, 0); /* alternate initial buffer fullness */
|
|
GST_WRITE_UINT32_LE (*buf + 64, 0); /* maximum object size */
|
|
|
|
/* flags */
|
|
if (asfpad->is_audio) {
|
|
/* TODO check if audio is seekable */
|
|
GST_WRITE_UINT32_LE (*buf + 68, 0x0);
|
|
} else {
|
|
/* video has indexes, so it is seekable unless we are streaming */
|
|
if (asfmux->prop_streamable)
|
|
GST_WRITE_UINT32_LE (*buf + 68, 0x0);
|
|
else
|
|
GST_WRITE_UINT32_LE (*buf + 68, 0x2);
|
|
}
|
|
|
|
GST_WRITE_UINT16_LE (*buf + 72, asfpad->stream_number);
|
|
GST_WRITE_UINT16_LE (*buf + 74, 0); /* language index */
|
|
GST_WRITE_UINT64_LE (*buf + 76, 0); /* avg time per frame */
|
|
GST_WRITE_UINT16_LE (*buf + 84, 0); /* stream name count */
|
|
GST_WRITE_UINT16_LE (*buf + 86, 0); /* payload extension count */
|
|
|
|
*buf += ASF_EXTENDED_STREAM_PROPERTIES_OBJECT_SIZE;
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_write_string_with_size:
|
|
* @asfmux:
|
|
* @size_buf: pointer to the memory position to write the size of the string
|
|
* @str_buf: pointer to the memory position to write the string
|
|
* @str: the string to be writen (in UTF-8)
|
|
* @use32: if the string size should be writen with 32 bits (if true)
|
|
* or with 16 (if false)
|
|
*
|
|
* Writes a string with its size as it is needed in many asf objects.
|
|
* The size is writen to size_buf as a WORD field if use32 is false, and
|
|
* as a DWORD if use32 is true. The string is writen to str_buf in UTF16-LE.
|
|
* The string should be passed in UTF-8.
|
|
*
|
|
* The string size in UTF16-LE is returned.
|
|
*/
|
|
static guint64
|
|
gst_asf_mux_write_string_with_size (GstAsfMux * asfmux,
|
|
guint8 * size_buf, guint8 * str_buf, const gchar * str, gboolean use32)
|
|
{
|
|
GError *error = NULL;
|
|
gsize str_size = 0;
|
|
gchar *str_utf16 = NULL;
|
|
|
|
GST_LOG_OBJECT (asfmux, "Writing extended content description string: "
|
|
"%s", str);
|
|
|
|
/*
|
|
* Covert the string to utf16
|
|
* Also force the last bytes to null terminated,
|
|
* tags were with extra weird characters without it.
|
|
*/
|
|
str_utf16 = g_convert (str, -1, "UTF-16LE", "UTF-8", NULL, &str_size, &error);
|
|
|
|
/* sum up the null terminating char */
|
|
str_size += 2;
|
|
|
|
if (use32)
|
|
GST_WRITE_UINT32_LE (size_buf, str_size);
|
|
else
|
|
GST_WRITE_UINT16_LE (size_buf, str_size);
|
|
if (error) {
|
|
GST_WARNING_OBJECT (asfmux, "Error converting string "
|
|
"to UTF-16: %s - %s", str, error->message);
|
|
g_error_free (error);
|
|
memset (str_buf, 0, str_size);
|
|
} else {
|
|
/* HACK: g_convert seems to add only a single byte null char to
|
|
* the end of the stream, we force the second one */
|
|
memcpy (str_buf, str_utf16, str_size - 1);
|
|
str_buf[str_size - 1] = 0;
|
|
}
|
|
g_free (str_utf16);
|
|
return str_size;
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_write_content_description_entry:
|
|
* @asfmux:
|
|
* @tags:
|
|
* @tagname:
|
|
* @size_buf:
|
|
* @data_buf:
|
|
*
|
|
* Checks if a string tag with tagname exists in the taglist. If it
|
|
* exists it is writen as an UTF-16LE to data_buf and its size in bytes
|
|
* is writen to size_buf. It is used for writing content description
|
|
* object fields.
|
|
*
|
|
* Returns: the size of the string
|
|
*/
|
|
static guint16
|
|
gst_asf_mux_write_content_description_entry (GstAsfMux * asfmux,
|
|
const GstTagList * tags, const gchar * tagname,
|
|
guint8 * size_buf, guint8 * data_buf)
|
|
{
|
|
gchar *text = NULL;
|
|
guint16 text_size = 0;
|
|
if (gst_tag_list_get_string (tags, tagname, &text)) {
|
|
text_size = gst_asf_mux_write_string_with_size (asfmux, size_buf,
|
|
data_buf, text, FALSE);
|
|
g_free (text);
|
|
} else {
|
|
GST_WRITE_UINT16_LE (size_buf, 0);
|
|
}
|
|
return text_size;
|
|
}
|
|
|
|
static guint64
|
|
gst_asf_mux_write_ext_content_description_dword_entry (GstAsfMux * asfmux,
|
|
guint8 * buf, const gchar * asf_tag, const guint32 value)
|
|
{
|
|
guint64 tag_size;
|
|
GST_DEBUG_OBJECT (asfmux, "Writing extended content description tag: "
|
|
"%s (%u)", asf_tag, value);
|
|
|
|
tag_size = gst_asf_mux_write_string_with_size (asfmux, buf, buf + 2,
|
|
asf_tag, FALSE);
|
|
buf += tag_size + 2;
|
|
GST_WRITE_UINT16_LE (buf, ASF_TAG_TYPE_DWORD);
|
|
GST_WRITE_UINT16_LE (buf + 2, 4);
|
|
GST_WRITE_UINT32_LE (buf + 4, value);
|
|
|
|
/* tagsize -> string size
|
|
* 2 -> string size field size
|
|
* 4 -> dword entry
|
|
* 4 -> type of entry + entry size
|
|
*/
|
|
return tag_size + 2 + 4 + 4;
|
|
}
|
|
|
|
static guint64
|
|
gst_asf_mux_write_ext_content_description_string_entry (GstAsfMux * asfmux,
|
|
guint8 * buf, const gchar * asf_tag, const gchar * text)
|
|
{
|
|
guint64 tag_size = 0;
|
|
guint64 text_size = 0;
|
|
|
|
GST_DEBUG_OBJECT (asfmux, "Writing extended content description tag: "
|
|
"%s (%s)", asf_tag, text);
|
|
|
|
tag_size = gst_asf_mux_write_string_with_size (asfmux,
|
|
buf, buf + 2, asf_tag, FALSE);
|
|
GST_WRITE_UINT16_LE (buf + tag_size + 2, ASF_TAG_TYPE_UNICODE_STR);
|
|
buf += tag_size + 2 + 2;
|
|
text_size = gst_asf_mux_write_string_with_size (asfmux,
|
|
buf, buf + 2, text, FALSE);
|
|
|
|
/* the size of the strings in utf16-le plus the 3 WORD fields */
|
|
return tag_size + text_size + 6;
|
|
}
|
|
|
|
static void
|
|
gst_asf_mux_write_content_description (GstAsfMux * asfmux, guint8 ** buf,
|
|
const GstTagList * tags)
|
|
{
|
|
guint8 *values = (*buf) + ASF_CONTENT_DESCRIPTION_OBJECT_SIZE;
|
|
guint64 size = 0;
|
|
|
|
GST_DEBUG_OBJECT (asfmux, "Writing content description object");
|
|
|
|
gst_asf_put_guid (*buf, guids[ASF_CONTENT_DESCRIPTION_INDEX]);
|
|
|
|
values += gst_asf_mux_write_content_description_entry (asfmux, tags,
|
|
GST_TAG_TITLE, *buf + 24, values);
|
|
values += gst_asf_mux_write_content_description_entry (asfmux, tags,
|
|
GST_TAG_ARTIST, *buf + 26, values);
|
|
values += gst_asf_mux_write_content_description_entry (asfmux, tags,
|
|
GST_TAG_COPYRIGHT, *buf + 28, values);
|
|
values += gst_asf_mux_write_content_description_entry (asfmux, tags,
|
|
GST_TAG_DESCRIPTION, *buf + 30, values);
|
|
|
|
/* rating is currently not present in gstreamer tags, so we put 0 */
|
|
GST_WRITE_UINT16_LE (*buf + 32, 0);
|
|
|
|
size += values - *buf;
|
|
GST_WRITE_UINT64_LE (*buf + 16, size);
|
|
*buf += size;
|
|
}
|
|
|
|
static void
|
|
write_ext_content_description_tag (const GstTagList * taglist,
|
|
const gchar * tag, gpointer user_data)
|
|
{
|
|
const gchar *asftag = gst_asf_get_asf_tag (tag);
|
|
GValue value = { 0 };
|
|
guint type;
|
|
GstAsfExtContDescData *data = (GstAsfExtContDescData *) user_data;
|
|
|
|
if (asftag == NULL)
|
|
return;
|
|
|
|
if (!gst_tag_list_copy_value (&value, taglist, tag)) {
|
|
return;
|
|
}
|
|
|
|
type = gst_asf_get_tag_field_type (&value);
|
|
switch (type) {
|
|
case ASF_TAG_TYPE_UNICODE_STR:
|
|
{
|
|
const gchar *text;
|
|
text = g_value_get_string (&value);
|
|
data->size +=
|
|
gst_asf_mux_write_ext_content_description_string_entry (data->asfmux,
|
|
data->buf + data->size, asftag, text);
|
|
}
|
|
break;
|
|
case ASF_TAG_TYPE_DWORD:
|
|
{
|
|
guint num = g_value_get_uint (&value);
|
|
data->size +=
|
|
gst_asf_mux_write_ext_content_description_dword_entry (data->asfmux,
|
|
data->buf + data->size, asftag, num);
|
|
}
|
|
break;
|
|
default:
|
|
GST_WARNING_OBJECT (data->asfmux,
|
|
"Unhandled asf tag field type %u for tag %s", type, tag);
|
|
g_value_reset (&value);
|
|
return;
|
|
}
|
|
data->count++;
|
|
g_value_reset (&value);
|
|
}
|
|
|
|
static void
|
|
gst_asf_mux_write_ext_content_description (GstAsfMux * asfmux, guint8 ** buf,
|
|
GstTagList * tags)
|
|
{
|
|
GstAsfExtContDescData extContDesc;
|
|
extContDesc.asfmux = asfmux;
|
|
extContDesc.buf = *buf;
|
|
extContDesc.count = 0;
|
|
extContDesc.size = ASF_EXT_CONTENT_DESCRIPTION_OBJECT_SIZE;
|
|
|
|
GST_DEBUG_OBJECT (asfmux, "Writing extended content description object");
|
|
gst_asf_put_guid (*buf, guids[ASF_EXT_CONTENT_DESCRIPTION_INDEX]);
|
|
|
|
gst_tag_list_foreach (tags, write_ext_content_description_tag, &extContDesc);
|
|
|
|
GST_WRITE_UINT64_LE (*buf + 16, extContDesc.size);
|
|
GST_WRITE_UINT16_LE (*buf + 24, extContDesc.count);
|
|
|
|
*buf += extContDesc.size;
|
|
}
|
|
|
|
static void
|
|
write_metadata_tag (const GstTagList * taglist, const gchar * tag,
|
|
gpointer user_data)
|
|
{
|
|
const gchar *asftag = gst_asf_get_asf_tag (tag);
|
|
GValue value = { 0 };
|
|
guint type;
|
|
GstAsfMetadataObjData *data = (GstAsfMetadataObjData *) user_data;
|
|
guint16 tag_size;
|
|
guint32 content_size;
|
|
|
|
if (asftag == NULL)
|
|
return;
|
|
|
|
if (!gst_tag_list_copy_value (&value, taglist, tag)) {
|
|
return;
|
|
}
|
|
|
|
type = gst_asf_get_tag_field_type (&value);
|
|
switch (type) {
|
|
case ASF_TAG_TYPE_UNICODE_STR:
|
|
{
|
|
const gchar *text;
|
|
text = g_value_get_string (&value);
|
|
GST_WRITE_UINT16_LE (data->buf + data->size, 0);
|
|
GST_WRITE_UINT16_LE (data->buf + data->size + 2, data->stream_num);
|
|
data->size += 4;
|
|
|
|
tag_size = gst_asf_mux_write_string_with_size (data->asfmux,
|
|
data->buf + data->size, data->buf + data->size + 8, asftag, FALSE);
|
|
data->size += 2;
|
|
|
|
GST_WRITE_UINT16_LE (data->buf + data->size, type);
|
|
data->size += 2;
|
|
|
|
content_size = gst_asf_mux_write_string_with_size (data->asfmux,
|
|
data->buf + data->size, data->buf + data->size + tag_size + 4, text,
|
|
TRUE);
|
|
data->size += tag_size + content_size + 4;
|
|
}
|
|
break;
|
|
case ASF_TAG_TYPE_DWORD:
|
|
{
|
|
guint num = g_value_get_uint (&value);
|
|
GST_WRITE_UINT16_LE (data->buf + data->size, 0);
|
|
GST_WRITE_UINT16_LE (data->buf + data->size + 2, data->stream_num);
|
|
data->size += 4;
|
|
|
|
tag_size = gst_asf_mux_write_string_with_size (data->asfmux,
|
|
data->buf + data->size, data->buf + data->size + 8, asftag, FALSE);
|
|
data->size += 2;
|
|
|
|
GST_WRITE_UINT16_LE (data->buf + data->size, type);
|
|
data->size += 2;
|
|
/* dword length */
|
|
GST_WRITE_UINT32_LE (data->buf + data->size, 4);
|
|
data->size += 4 + tag_size;
|
|
|
|
GST_WRITE_UINT32_LE (data->buf + data->size, num);
|
|
data->size += 4;
|
|
}
|
|
break;
|
|
default:
|
|
GST_WARNING_OBJECT (data->asfmux,
|
|
"Unhandled asf tag field type %u for tag %s", type, tag);
|
|
g_value_reset (&value);
|
|
return;
|
|
}
|
|
|
|
data->count++;
|
|
g_value_reset (&value);
|
|
}
|
|
|
|
static void
|
|
gst_asf_mux_write_metadata_object (GstAsfMux * asfmux, guint8 ** buf,
|
|
GstAsfPad * asfpad)
|
|
{
|
|
GstAsfMetadataObjData metaObjData;
|
|
metaObjData.asfmux = asfmux;
|
|
metaObjData.buf = *buf;
|
|
metaObjData.count = 0;
|
|
metaObjData.size = ASF_METADATA_OBJECT_SIZE;
|
|
metaObjData.stream_num = asfpad->stream_number;
|
|
|
|
if (asfpad->taglist == NULL || gst_tag_list_is_empty (asfpad->taglist))
|
|
return;
|
|
|
|
GST_DEBUG_OBJECT (asfmux, "Writing metadata object");
|
|
gst_asf_put_guid (*buf, guids[ASF_METADATA_OBJECT_INDEX]);
|
|
|
|
gst_tag_list_foreach (asfpad->taglist, write_metadata_tag, &metaObjData);
|
|
|
|
GST_WRITE_UINT64_LE (*buf + 16, metaObjData.size);
|
|
GST_WRITE_UINT16_LE (*buf + 24, metaObjData.count);
|
|
|
|
*buf += metaObjData.size;
|
|
}
|
|
|
|
static void
|
|
gst_asf_mux_write_padding_object (GstAsfMux * asfmux, guint8 ** buf,
|
|
guint64 padding)
|
|
{
|
|
if (padding < ASF_PADDING_OBJECT_SIZE) {
|
|
return;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (asfmux, "Writing padding object of size %" G_GUINT64_FORMAT,
|
|
padding);
|
|
gst_asf_put_guid (*buf, guids[ASF_PADDING_OBJECT_INDEX]);
|
|
GST_WRITE_UINT64_LE (*buf + 16, padding);
|
|
memset (*buf + 24, 0, padding - ASF_PADDING_OBJECT_SIZE);
|
|
*buf += padding;
|
|
}
|
|
|
|
static void
|
|
gst_asf_mux_write_data_object (GstAsfMux * asfmux, guint8 ** buf)
|
|
{
|
|
gst_asf_put_guid (*buf, guids[ASF_DATA_OBJECT_INDEX]);
|
|
|
|
/* Data object size. This is always >= ASF_DATA_OBJECT_SIZE. The standard
|
|
* specifically accepts the value 0 in live streams, but WMP is not accepting
|
|
* this while streaming using WMSP, so we default to minimum size also for
|
|
* live streams. Otherwise this field must be updated later on when we know
|
|
* the complete stream size.
|
|
*/
|
|
GST_WRITE_UINT64_LE (*buf + 16, ASF_DATA_OBJECT_SIZE);
|
|
|
|
gst_asf_put_guid (*buf + 24, asfmux->file_id);
|
|
GST_WRITE_UINT64_LE (*buf + 40, 0); /* total data packets */
|
|
GST_WRITE_UINT16_LE (*buf + 48, 0x0101); /* reserved */
|
|
*buf += ASF_DATA_OBJECT_SIZE;
|
|
}
|
|
|
|
static void
|
|
gst_asf_mux_put_buffer_in_streamheader (GValue * streamheader,
|
|
GstBuffer * buffer)
|
|
{
|
|
GValue value = { 0 };
|
|
GstBuffer *buf;
|
|
|
|
g_value_init (&value, GST_TYPE_BUFFER);
|
|
buf = gst_buffer_copy (buffer);
|
|
gst_value_set_buffer (&value, buf);
|
|
gst_buffer_unref (buf);
|
|
gst_value_array_append_value (streamheader, &value);
|
|
g_value_unset (&value);
|
|
}
|
|
|
|
static guint
|
|
gst_asf_mux_find_payload_parsing_info_size (GstAsfMux * asfmux)
|
|
{
|
|
/* Minimum payload parsing information size is 8 bytes */
|
|
guint size = 8;
|
|
|
|
if (asfmux->prop_packet_size > 65535)
|
|
size += 4;
|
|
else
|
|
size += 2;
|
|
|
|
if (asfmux->prop_padding > 65535)
|
|
size += 4;
|
|
else
|
|
size += 2;
|
|
|
|
return size;
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_start_file:
|
|
* @asfmux: #GstAsfMux
|
|
*
|
|
* Starts the asf file/stream by creating and pushing
|
|
* the headers downstream.
|
|
*/
|
|
static GstFlowReturn
|
|
gst_asf_mux_start_file (GstAsfMux * asfmux)
|
|
{
|
|
GstBuffer *buf = NULL;
|
|
guint8 *bufdata = NULL;
|
|
GSList *walk;
|
|
guint stream_num = g_slist_length (asfmux->collect->data);
|
|
guint metadata_obj_size = 0;
|
|
GstAsfTags *asftags;
|
|
GValue streamheader = { 0 };
|
|
GstCaps *caps;
|
|
GstStructure *structure;
|
|
guint64 padding = asfmux->prop_padding;
|
|
if (padding < ASF_PADDING_OBJECT_SIZE)
|
|
padding = 0;
|
|
|
|
/* from this point we started writing the headers */
|
|
GST_INFO_OBJECT (asfmux, "Writing headers");
|
|
asfmux->state = GST_ASF_MUX_STATE_HEADERS;
|
|
|
|
/* let downstream know we think in BYTES and expect to do seeking later */
|
|
gst_pad_push_event (asfmux->srcpad,
|
|
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES, 0, -1, 0));
|
|
|
|
gst_asf_generate_file_id (&asfmux->file_id);
|
|
|
|
/* Get the metadata for content description object.
|
|
* We store our own taglist because it might get changed from now
|
|
* to the time we actually add its contents to the file, changing
|
|
* the size of the data we already calculated here.
|
|
*/
|
|
asftags = g_new0 (GstAsfTags, 1);
|
|
gst_asf_mux_get_content_description_tags (asfmux, asftags);
|
|
|
|
/* get the total metadata objects size */
|
|
for (walk = asfmux->collect->data; walk; walk = g_slist_next (walk)) {
|
|
metadata_obj_size += gst_asf_mux_get_metadata_object_size (asfmux,
|
|
(GstAsfPad *) walk->data);
|
|
}
|
|
|
|
/* alloc a buffer for all header objects */
|
|
buf = gst_buffer_new_and_alloc (gst_asf_mux_get_headers_size (asfmux) +
|
|
asftags->cont_desc_size +
|
|
asftags->ext_cont_desc_size +
|
|
metadata_obj_size + padding + ASF_DATA_OBJECT_SIZE);
|
|
bufdata = GST_BUFFER_DATA (buf);
|
|
|
|
gst_asf_mux_write_header_object (asfmux, &bufdata, GST_BUFFER_SIZE (buf) -
|
|
ASF_DATA_OBJECT_SIZE, 2 + stream_num);
|
|
|
|
/* get the position of the file properties object for
|
|
* updating it in gst_asf_mux_stop_file */
|
|
asfmux->file_properties_object_position = bufdata - GST_BUFFER_DATA (buf);
|
|
gst_asf_mux_write_file_properties (asfmux, &bufdata);
|
|
|
|
for (walk = asfmux->collect->data; walk; walk = g_slist_next (walk)) {
|
|
gst_asf_mux_write_stream_properties (asfmux, &bufdata,
|
|
(GstAsfPad *) walk->data);
|
|
}
|
|
|
|
if (asftags->cont_desc_size) {
|
|
gst_asf_mux_write_content_description (asfmux, &bufdata, asftags->tags);
|
|
}
|
|
if (asftags->ext_cont_desc_size) {
|
|
gst_asf_mux_write_ext_content_description (asfmux, &bufdata, asftags->tags);
|
|
}
|
|
|
|
if (asftags) {
|
|
if (asftags->tags)
|
|
gst_tag_list_free (asftags->tags);
|
|
g_free (asftags);
|
|
}
|
|
|
|
/* writing header extension objects */
|
|
gst_asf_mux_write_header_extension (asfmux, &bufdata, stream_num *
|
|
ASF_EXTENDED_STREAM_PROPERTIES_OBJECT_SIZE + metadata_obj_size);
|
|
for (walk = asfmux->collect->data; walk; walk = g_slist_next (walk)) {
|
|
gst_asf_mux_write_extended_stream_properties (asfmux, &bufdata,
|
|
(GstAsfPad *) walk->data);
|
|
}
|
|
for (walk = asfmux->collect->data; walk; walk = g_slist_next (walk)) {
|
|
gst_asf_mux_write_metadata_object (asfmux, &bufdata,
|
|
(GstAsfPad *) walk->data);
|
|
}
|
|
|
|
gst_asf_mux_write_padding_object (asfmux, &bufdata, padding);
|
|
|
|
/* store data object position for later updating some fields */
|
|
asfmux->data_object_position = bufdata - GST_BUFFER_DATA (buf);
|
|
gst_asf_mux_write_data_object (asfmux, &bufdata);
|
|
|
|
/* set streamheader in source pad if 'streamable' */
|
|
if (asfmux->prop_streamable) {
|
|
g_value_init (&streamheader, GST_TYPE_ARRAY);
|
|
gst_asf_mux_put_buffer_in_streamheader (&streamheader, buf);
|
|
|
|
caps = gst_caps_ref (GST_PAD_CAPS (asfmux->srcpad));
|
|
caps = gst_caps_make_writable (caps);
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
gst_structure_set_value (structure, "streamheader", &streamheader);
|
|
gst_pad_set_caps (asfmux->srcpad, caps);
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_IN_CAPS);
|
|
g_value_unset (&streamheader);
|
|
gst_caps_unref (caps);
|
|
}
|
|
|
|
g_assert (bufdata - GST_BUFFER_DATA (buf) == GST_BUFFER_SIZE (buf));
|
|
return gst_asf_mux_push_buffer (asfmux, buf);
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_add_simple_index_entry:
|
|
* @asfmux:
|
|
* @videopad:
|
|
*
|
|
* Adds a new entry to the simple index of the stream handler by videopad.
|
|
* This functions doesn't check if the time ellapsed
|
|
* is larger than the established time interval between entries. The caller
|
|
* is responsible for verifying this.
|
|
*/
|
|
static void
|
|
gst_asf_mux_add_simple_index_entry (GstAsfMux * asfmux,
|
|
GstAsfVideoPad * videopad)
|
|
{
|
|
SimpleIndexEntry *entry = NULL;
|
|
GST_DEBUG_OBJECT (asfmux, "Adding new simple index entry "
|
|
"packet number: %" G_GUINT32_FORMAT ", "
|
|
"packet count: %" G_GUINT16_FORMAT,
|
|
videopad->last_keyframe_packet, videopad->last_keyframe_packet_count);
|
|
entry = g_malloc0 (sizeof (SimpleIndexEntry));
|
|
entry->packet_number = videopad->last_keyframe_packet;
|
|
entry->packet_count = videopad->last_keyframe_packet_count;
|
|
if (entry->packet_count > videopad->max_keyframe_packet_count)
|
|
videopad->max_keyframe_packet_count = entry->packet_count;
|
|
videopad->simple_index = g_slist_append (videopad->simple_index, entry);
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_send_packet:
|
|
* @asfmux:
|
|
* @buf: The asf data packet
|
|
*
|
|
* Pushes an asf data packet downstream. The total number
|
|
* of packets and bytes of the stream are incremented.
|
|
*
|
|
* Returns: the result of pushing the buffer downstream
|
|
*/
|
|
static GstFlowReturn
|
|
gst_asf_mux_send_packet (GstAsfMux * asfmux, GstBuffer * buf)
|
|
{
|
|
g_assert (GST_BUFFER_SIZE (buf) == asfmux->packet_size);
|
|
asfmux->total_data_packets++;
|
|
GST_LOG_OBJECT (asfmux,
|
|
"Pushing a packet of size %u and timestamp %" G_GUINT64_FORMAT,
|
|
GST_BUFFER_SIZE (buf), GST_BUFFER_TIMESTAMP (buf));
|
|
GST_LOG_OBJECT (asfmux, "Total data packets: %" G_GUINT64_FORMAT,
|
|
asfmux->total_data_packets);
|
|
return gst_asf_mux_push_buffer (asfmux, buf);
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_flush_payloads:
|
|
* @asfmux: #GstAsfMux to flush the payloads from
|
|
*
|
|
* Fills an asf packet with asfmux queued payloads and
|
|
* pushes it downstream.
|
|
*
|
|
* Returns: The result of pushing the packet
|
|
*/
|
|
static GstFlowReturn
|
|
gst_asf_mux_flush_payloads (GstAsfMux * asfmux)
|
|
{
|
|
GstBuffer *buf;
|
|
guint8 payloads_count = 0; /* we only use 6 bits, max is 63 */
|
|
guint i;
|
|
GstClockTime send_ts = GST_CLOCK_TIME_NONE;
|
|
guint64 size_left;
|
|
guint8 *data;
|
|
GSList *walk;
|
|
GstAsfPad *pad;
|
|
gboolean has_keyframe;
|
|
AsfPayload *payload;
|
|
guint32 payload_size;
|
|
guint offset;
|
|
|
|
if (asfmux->payloads == NULL)
|
|
return GST_FLOW_OK; /* nothing to send is ok */
|
|
|
|
GST_LOG_OBJECT (asfmux, "Flushing payloads");
|
|
|
|
buf = gst_buffer_new_and_alloc (asfmux->packet_size);
|
|
memset (GST_BUFFER_DATA (buf), 0, asfmux->packet_size);
|
|
|
|
/* 1 for the multiple payload flags */
|
|
data = GST_BUFFER_DATA (buf) + asfmux->payload_parsing_info_size + 1;
|
|
size_left = asfmux->packet_size - asfmux->payload_parsing_info_size - 1;
|
|
|
|
has_keyframe = FALSE;
|
|
walk = asfmux->payloads;
|
|
while (walk && payloads_count < MAX_PAYLOADS_IN_A_PACKET) {
|
|
payload = (AsfPayload *) walk->data;
|
|
pad = (GstAsfPad *) payload->pad;
|
|
payload_size = gst_asf_payload_get_size (payload);
|
|
if (size_left < payload_size) {
|
|
break; /* next payload doesn't fit fully */
|
|
}
|
|
|
|
if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (send_ts))) {
|
|
send_ts = GST_BUFFER_TIMESTAMP (payload->data);
|
|
}
|
|
|
|
/* adding new simple index entry (if needed) */
|
|
if (!pad->is_audio
|
|
&& GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (payload->data))) {
|
|
GstAsfVideoPad *videopad = (GstAsfVideoPad *) pad;
|
|
if (videopad->has_keyframe) {
|
|
for (; videopad->next_index_time <=
|
|
ASF_MILI_TO_100NANO (payload->presentation_time);
|
|
videopad->next_index_time += videopad->time_interval) {
|
|
gst_asf_mux_add_simple_index_entry (asfmux, videopad);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* serialize our payload */
|
|
GST_DEBUG_OBJECT (asfmux, "Serializing payload into packet");
|
|
GST_DEBUG_OBJECT (asfmux, "stream number: %d", pad->stream_number & 0x7F);
|
|
GST_DEBUG_OBJECT (asfmux, "media object number: %d",
|
|
(gint) payload->media_obj_num);
|
|
GST_DEBUG_OBJECT (asfmux, "offset into media object: %" G_GUINT16_FORMAT,
|
|
payload->offset_in_media_obj);
|
|
GST_DEBUG_OBJECT (asfmux, "media object size: %" G_GUINT32_FORMAT,
|
|
payload->media_object_size);
|
|
GST_DEBUG_OBJECT (asfmux, "replicated data length: %d",
|
|
(gint) payload->replicated_data_length);
|
|
GST_DEBUG_OBJECT (asfmux, "payload size: %u",
|
|
GST_BUFFER_SIZE (payload->data));
|
|
GST_DEBUG_OBJECT (asfmux, "presentation time: %" G_GUINT32_FORMAT " (%"
|
|
GST_TIME_FORMAT ")", payload->presentation_time,
|
|
GST_TIME_ARGS (payload->presentation_time * GST_MSECOND));
|
|
GST_DEBUG_OBJECT (asfmux, "keyframe: %s",
|
|
(payload->stream_number & 0x80 ? "yes" : "no"));
|
|
GST_DEBUG_OBJECT (asfmux, "buffer timestamp: %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (payload->data)));
|
|
GST_DEBUG_OBJECT (asfmux, "buffer duration %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (GST_BUFFER_DURATION (payload->data)));
|
|
|
|
gst_asf_put_payload (data, payload);
|
|
if (!payload->has_packet_info) {
|
|
payload->has_packet_info = TRUE;
|
|
payload->packet_number = asfmux->total_data_packets;
|
|
}
|
|
GST_DEBUG_OBJECT (asfmux, "packet number: %" G_GUINT32_FORMAT,
|
|
payload->packet_number);
|
|
|
|
if (ASF_PAYLOAD_IS_KEYFRAME (payload)) {
|
|
has_keyframe = TRUE;
|
|
if (!pad->is_audio) {
|
|
GstAsfVideoPad *videopad = (GstAsfVideoPad *) pad;
|
|
videopad->last_keyframe_packet = payload->packet_number;
|
|
videopad->last_keyframe_packet_count = payload->packet_count;
|
|
videopad->has_keyframe = TRUE;
|
|
}
|
|
}
|
|
|
|
/* update our variables */
|
|
data += payload_size;
|
|
size_left -= payload_size;
|
|
payloads_count++;
|
|
walk = g_slist_next (walk);
|
|
}
|
|
|
|
/* remove flushed payloads */
|
|
GST_LOG_OBJECT (asfmux, "Freeing already used payloads");
|
|
for (i = 0; i < payloads_count; i++) {
|
|
GSList *aux = g_slist_nth (asfmux->payloads, 0);
|
|
AsfPayload *payload;
|
|
g_assert (aux);
|
|
payload = (AsfPayload *) aux->data;
|
|
asfmux->payloads = g_slist_remove (asfmux->payloads, payload);
|
|
asfmux->payload_data_size -=
|
|
(GST_BUFFER_SIZE (payload->data) + ASF_MULTIPLE_PAYLOAD_HEADER_SIZE);
|
|
gst_asf_payload_free (payload);
|
|
}
|
|
|
|
/* check if we can add part of the next payload */
|
|
if (asfmux->payloads && size_left > ASF_MULTIPLE_PAYLOAD_HEADER_SIZE) {
|
|
AsfPayload *payload =
|
|
(AsfPayload *) g_slist_nth (asfmux->payloads, 0)->data;
|
|
guint16 bytes_writen;
|
|
GST_DEBUG_OBJECT (asfmux, "Adding part of a payload to a packet");
|
|
|
|
if (ASF_PAYLOAD_IS_KEYFRAME (payload))
|
|
has_keyframe = TRUE;
|
|
|
|
if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (send_ts))) {
|
|
send_ts = GST_BUFFER_TIMESTAMP (payload->data);
|
|
}
|
|
|
|
bytes_writen = gst_asf_put_subpayload (data, payload, size_left);
|
|
if (!payload->has_packet_info) {
|
|
payload->has_packet_info = TRUE;
|
|
payload->packet_number = asfmux->total_data_packets;
|
|
}
|
|
asfmux->payload_data_size -= bytes_writen;
|
|
size_left -= (bytes_writen + ASF_MULTIPLE_PAYLOAD_HEADER_SIZE);
|
|
payloads_count++;
|
|
}
|
|
|
|
GST_LOG_OBJECT (asfmux, "Payload data size: %" G_GUINT32_FORMAT,
|
|
asfmux->payload_data_size);
|
|
|
|
/* fill payload parsing info */
|
|
data = GST_BUFFER_DATA (buf);
|
|
/* flags */
|
|
GST_WRITE_UINT8 (data, (0x0 << 7) | /* no error correction */
|
|
(ASF_FIELD_TYPE_DWORD << 5) | /* packet length type */
|
|
(ASF_FIELD_TYPE_DWORD << 3) | /* padding length type */
|
|
(ASF_FIELD_TYPE_NONE << 1) | /* sequence type type */
|
|
0x1); /* multiple payloads */
|
|
offset = 1;
|
|
|
|
/* property flags - according to the spec, this should not change */
|
|
GST_WRITE_UINT8 (data + offset, (ASF_FIELD_TYPE_BYTE << 6) | /* stream number length type */
|
|
(ASF_FIELD_TYPE_BYTE << 4) | /* media obj number length type */
|
|
(ASF_FIELD_TYPE_DWORD << 2) | /* offset info media object length type */
|
|
(ASF_FIELD_TYPE_BYTE)); /* replicated data length type */
|
|
offset++;
|
|
|
|
/* Due to a limitation in WMP while streaming through WMSP we reduce the
|
|
* packet & padding size to 16bit if theay are <= 65535 bytes
|
|
*/
|
|
if (asfmux->packet_size > 65535) {
|
|
GST_WRITE_UINT32_LE (data + offset, asfmux->packet_size - size_left);
|
|
offset += 4;
|
|
} else {
|
|
*data &= ~(ASF_FIELD_TYPE_MASK << 5);
|
|
*data |= ASF_FIELD_TYPE_WORD << 5;
|
|
GST_WRITE_UINT16_LE (data + offset, asfmux->packet_size - size_left);
|
|
offset += 2;
|
|
}
|
|
if (asfmux->prop_padding > 65535) {
|
|
GST_WRITE_UINT32_LE (data + offset, size_left);
|
|
offset += 4;
|
|
} else {
|
|
*data &= ~(ASF_FIELD_TYPE_MASK << 3);
|
|
*data |= ASF_FIELD_TYPE_WORD << 3;
|
|
GST_WRITE_UINT16_LE (data + offset, size_left);
|
|
offset += 2;
|
|
}
|
|
|
|
/* packet send time */
|
|
if (GST_CLOCK_TIME_IS_VALID (send_ts)) {
|
|
GST_WRITE_UINT32_LE (data + offset, (send_ts / GST_MSECOND));
|
|
GST_BUFFER_TIMESTAMP (buf) = send_ts;
|
|
}
|
|
offset += 4;
|
|
|
|
/* packet duration */
|
|
GST_WRITE_UINT16_LE (data + offset, 0); /* FIXME send duration needs to be estimated */
|
|
offset += 2;
|
|
|
|
/* multiple payloads flags */
|
|
GST_WRITE_UINT8 (data + offset, 0x2 << 6 | payloads_count);
|
|
|
|
if (payloads_count == 0) {
|
|
GST_WARNING_OBJECT (asfmux, "Sending packet without any payload");
|
|
}
|
|
asfmux->data_object_size += GST_BUFFER_SIZE (buf);
|
|
if (!has_keyframe)
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
return gst_asf_mux_send_packet (asfmux, buf);
|
|
}
|
|
|
|
/**
|
|
* stream_number_compare:
|
|
* @a: a #GstAsfPad
|
|
* @b: another #GstAsfPad
|
|
*
|
|
* Utility function to compare #GstAsfPad by their stream numbers
|
|
*
|
|
* Returns: The difference between their stream numbers
|
|
*/
|
|
static gint
|
|
stream_number_compare (gconstpointer a, gconstpointer b)
|
|
{
|
|
GstAsfPad *pad_a = (GstAsfPad *) a;
|
|
GstAsfPad *pad_b = (GstAsfPad *) b;
|
|
return pad_b->stream_number - pad_a->stream_number;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_asf_mux_push_simple_index (GstAsfMux * asfmux, GstAsfVideoPad * pad)
|
|
{
|
|
guint64 object_size = ASF_SIMPLE_INDEX_OBJECT_SIZE +
|
|
g_slist_length (pad->simple_index) * ASF_SIMPLE_INDEX_ENTRY_SIZE;
|
|
GstBuffer *buf = gst_buffer_new_and_alloc (object_size);
|
|
GSList *walk;
|
|
guint8 *data = GST_BUFFER_DATA (buf);
|
|
guint32 entries_count = g_slist_length (pad->simple_index);
|
|
|
|
gst_asf_put_guid (data, guids[ASF_SIMPLE_INDEX_OBJECT_INDEX]);
|
|
GST_WRITE_UINT64_LE (data + 16, object_size);
|
|
gst_asf_put_guid (data + 24, asfmux->file_id);
|
|
GST_WRITE_UINT64_LE (data + 40, pad->time_interval);
|
|
GST_WRITE_UINT32_LE (data + 48, pad->max_keyframe_packet_count);
|
|
GST_WRITE_UINT32_LE (data + 52, entries_count);
|
|
data += ASF_SIMPLE_INDEX_OBJECT_SIZE;
|
|
|
|
GST_DEBUG_OBJECT (asfmux,
|
|
"Simple index object values - size:%" G_GUINT64_FORMAT ", time interval:%"
|
|
G_GUINT64_FORMAT ", max packet count:%" G_GUINT32_FORMAT ", entries:%"
|
|
G_GUINT16_FORMAT, object_size, pad->time_interval,
|
|
pad->max_keyframe_packet_count, entries_count);
|
|
|
|
for (walk = pad->simple_index; walk; walk = g_slist_next (walk)) {
|
|
SimpleIndexEntry *entry = (SimpleIndexEntry *) walk->data;
|
|
GST_DEBUG_OBJECT (asfmux, "Simple index entry: packet_number:%"
|
|
G_GUINT32_FORMAT " packet_count:%" G_GUINT16_FORMAT,
|
|
entry->packet_number, entry->packet_count);
|
|
GST_WRITE_UINT32_LE (data, entry->packet_number);
|
|
GST_WRITE_UINT16_LE (data + 4, entry->packet_count);
|
|
data += ASF_SIMPLE_INDEX_ENTRY_SIZE;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (asfmux, "Pushing the simple index");
|
|
g_assert (data - GST_BUFFER_DATA (buf) == object_size);
|
|
return gst_asf_mux_push_buffer (asfmux, buf);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_asf_mux_write_indexes (GstAsfMux * asfmux)
|
|
{
|
|
GSList *ordered_pads;
|
|
GSList *walker;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
/* write simple indexes for video medias */
|
|
ordered_pads =
|
|
g_slist_sort (g_slist_copy (asfmux->collect->data),
|
|
(GCompareFunc) stream_number_compare);
|
|
for (walker = ordered_pads; walker; walker = g_slist_next (walker)) {
|
|
GstAsfPad *pad = (GstAsfPad *) walker->data;
|
|
if (!pad->is_audio) {
|
|
ret = gst_asf_mux_push_simple_index (asfmux, (GstAsfVideoPad *) pad);
|
|
if (ret != GST_FLOW_OK) {
|
|
GST_ERROR_OBJECT (asfmux, "Failed to write simple index for stream %"
|
|
G_GUINT16_FORMAT, (guint16) pad->stream_number);
|
|
goto cleanup_and_return;
|
|
}
|
|
}
|
|
}
|
|
cleanup_and_return:
|
|
g_slist_free (ordered_pads);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_stop_file:
|
|
* @asfmux: #GstAsfMux
|
|
*
|
|
* Finalizes the asf stream by pushing the indexes after
|
|
* the data object. Also seeks back to the header positions
|
|
* to rewrite some fields such as the total number of bytes
|
|
* of the file, or any other that couldn't be predicted/known
|
|
* back on the header generation.
|
|
*
|
|
* Returns: GST_FLOW_OK on success
|
|
*/
|
|
static GstFlowReturn
|
|
gst_asf_mux_stop_file (GstAsfMux * asfmux)
|
|
{
|
|
GstEvent *event;
|
|
GstBuffer *buf;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GSList *walk;
|
|
GstClockTime play_duration = 0;
|
|
guint32 bitrate = 0;
|
|
|
|
/* write indexes */
|
|
ret = gst_asf_mux_write_indexes (asfmux);
|
|
if (ret != GST_FLOW_OK) {
|
|
GST_ERROR_OBJECT (asfmux, "Failed to write indexes");
|
|
return ret;
|
|
}
|
|
|
|
/* find max stream duration and bitrate */
|
|
for (walk = asfmux->collect->data; walk; walk = g_slist_next (walk)) {
|
|
GstAsfPad *pad = (GstAsfPad *) walk->data;
|
|
bitrate += pad->bitrate;
|
|
if (pad->play_duration > play_duration)
|
|
play_duration = pad->play_duration;
|
|
}
|
|
|
|
/* going back to file properties object to fill in
|
|
* values we didn't know back then */
|
|
GST_DEBUG_OBJECT (asfmux,
|
|
"Sending new segment to file properties object position");
|
|
event =
|
|
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
|
|
asfmux->file_properties_object_position + 40, GST_CLOCK_TIME_NONE, 0);
|
|
if (!gst_pad_push_event (asfmux->srcpad, event)) {
|
|
GST_ERROR_OBJECT (asfmux, "Failed to update file properties object");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
/* All file properties fields except the first 40 bytes */
|
|
buf = gst_buffer_new_and_alloc (ASF_FILE_PROPERTIES_OBJECT_SIZE - 40);
|
|
|
|
GST_WRITE_UINT64_LE (GST_BUFFER_DATA (buf), asfmux->file_size);
|
|
gst_asf_put_time (GST_BUFFER_DATA (buf) + 8, gst_asf_get_current_time ());
|
|
GST_WRITE_UINT64_LE (GST_BUFFER_DATA (buf) + 16, asfmux->total_data_packets);
|
|
GST_WRITE_UINT64_LE (GST_BUFFER_DATA (buf) + 24, (play_duration / 100) +
|
|
ASF_MILI_TO_100NANO (asfmux->preroll));
|
|
GST_WRITE_UINT64_LE (GST_BUFFER_DATA (buf) + 32, (play_duration / 100)); /* TODO send duration */
|
|
|
|
/* if play duration is smaller then preroll, player might have problems */
|
|
if (asfmux->preroll > play_duration / GST_MSECOND) {
|
|
GST_ELEMENT_WARNING (asfmux, STREAM, MUX, (_("Generated file has a larger"
|
|
" preroll time than its streams duration")),
|
|
("Preroll time larger than streams duration, "
|
|
"try setting a smaller preroll value next time"));
|
|
}
|
|
GST_WRITE_UINT64_LE (GST_BUFFER_DATA (buf) + 40, asfmux->preroll);
|
|
GST_WRITE_UINT32_LE (GST_BUFFER_DATA (buf) + 48, 0x2); /* flags - seekable */
|
|
GST_WRITE_UINT32_LE (GST_BUFFER_DATA (buf) + 52, asfmux->packet_size);
|
|
GST_WRITE_UINT32_LE (GST_BUFFER_DATA (buf) + 56, asfmux->packet_size);
|
|
/* FIXME - we want the max instantaneous bitrate, for vbr streams, we can't
|
|
* get it this way, this would be the average, right? */
|
|
GST_WRITE_UINT32_LE (GST_BUFFER_DATA (buf) + 60, bitrate); /* max bitrate */
|
|
|
|
/* we don't use gst_asf_mux_push_buffer because we are overwriting
|
|
* already sent data */
|
|
ret = gst_pad_push (asfmux->srcpad, buf);
|
|
if (ret != GST_FLOW_OK) {
|
|
GST_ERROR_OBJECT (asfmux, "Failed to update file properties object");
|
|
return ret;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (asfmux, "Seeking back to data object");
|
|
|
|
/* seek back to the data object */
|
|
event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
|
|
asfmux->data_object_position + 16, GST_CLOCK_TIME_NONE, 0);
|
|
|
|
if (!gst_pad_push_event (asfmux->srcpad, event)) {
|
|
GST_ERROR_OBJECT (asfmux, "Seek to update data object failed");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
buf = gst_buffer_new_and_alloc (32); /* qword+guid+qword */
|
|
GST_WRITE_UINT64_LE (GST_BUFFER_DATA (buf), asfmux->data_object_size +
|
|
ASF_DATA_OBJECT_SIZE);
|
|
gst_asf_put_guid (GST_BUFFER_DATA (buf) + 8, asfmux->file_id);
|
|
GST_WRITE_UINT64_LE (GST_BUFFER_DATA (buf) + 24, asfmux->total_data_packets);
|
|
|
|
return gst_pad_push (asfmux->srcpad, buf);
|
|
}
|
|
|
|
/**
|
|
* gst_asf_mux_process_buffer:
|
|
* @asfmux:
|
|
* @pad: stream of the buffer
|
|
* @buf: The buffer to be processed
|
|
*
|
|
* Processes the buffer by parsing it and
|
|
* queueing it up as an asf payload for later
|
|
* being added and pushed inside an asf packet.
|
|
*
|
|
* Returns: a #GstFlowReturn
|
|
*/
|
|
static GstFlowReturn
|
|
gst_asf_mux_process_buffer (GstAsfMux * asfmux, GstAsfPad * pad,
|
|
GstBuffer * buf)
|
|
{
|
|
guint8 keyframe;
|
|
AsfPayload *payload;
|
|
|
|
payload = g_malloc0 (sizeof (AsfPayload));
|
|
payload->pad = (GstCollectData *) pad;
|
|
payload->data = buf;
|
|
|
|
GST_LOG_OBJECT (asfmux,
|
|
"Processing payload data for stream number %" G_GUINT16_FORMAT,
|
|
pad->stream_number);
|
|
|
|
/* stream number */
|
|
if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT)) {
|
|
keyframe = 0;
|
|
} else {
|
|
keyframe = 0x1 << 7;
|
|
}
|
|
payload->stream_number = keyframe | pad->stream_number;
|
|
|
|
payload->media_obj_num = pad->media_object_number;
|
|
payload->offset_in_media_obj = 0;
|
|
payload->replicated_data_length = 8;
|
|
|
|
/* replicated data - 1) media object size */
|
|
payload->media_object_size = GST_BUFFER_SIZE (buf);
|
|
/* replicated data - 2) presentation time */
|
|
if (!GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (buf))) {
|
|
GST_ERROR_OBJECT (asfmux, "Received buffer without timestamp");
|
|
gst_asf_payload_free (payload);
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
g_assert (GST_CLOCK_TIME_IS_VALID (asfmux->first_ts));
|
|
g_assert (GST_CLOCK_TIME_IS_VALID (pad->first_ts));
|
|
|
|
payload->presentation_time = asfmux->preroll +
|
|
((GST_BUFFER_TIMESTAMP (buf) - asfmux->first_ts) / GST_MSECOND);
|
|
|
|
/* update counting values */
|
|
pad->media_object_number = (pad->media_object_number + 1) % 256;
|
|
if (GST_BUFFER_DURATION (buf) != GST_CLOCK_TIME_NONE) {
|
|
pad->play_duration += GST_BUFFER_DURATION (buf);
|
|
} else {
|
|
GST_WARNING_OBJECT (asfmux, "Received buffer without duration, it will not "
|
|
"be accounted in the total file time");
|
|
}
|
|
|
|
asfmux->payloads = g_slist_append (asfmux->payloads, payload);
|
|
asfmux->payload_data_size +=
|
|
GST_BUFFER_SIZE (buf) + ASF_MULTIPLE_PAYLOAD_HEADER_SIZE;
|
|
GST_LOG_OBJECT (asfmux, "Payload data size: %" G_GUINT32_FORMAT,
|
|
asfmux->payload_data_size);
|
|
|
|
while (asfmux->payload_data_size + asfmux->payload_parsing_info_size >=
|
|
asfmux->packet_size) {
|
|
GstFlowReturn ret = gst_asf_mux_flush_payloads (asfmux);
|
|
if (ret != GST_FLOW_OK)
|
|
return ret;
|
|
}
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_asf_mux_collected (GstCollectPads * collect, gpointer data)
|
|
{
|
|
GstAsfMux *asfmux = GST_ASF_MUX_CAST (data);
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GstAsfPad *best_pad = NULL;
|
|
GstClockTime best_time = GST_CLOCK_TIME_NONE;
|
|
GstBuffer *buf = NULL;
|
|
GSList *walk;
|
|
|
|
if (G_UNLIKELY (asfmux->state == GST_ASF_MUX_STATE_NONE)) {
|
|
ret = gst_asf_mux_start_file (asfmux);
|
|
if (ret != GST_FLOW_OK) {
|
|
GST_WARNING_OBJECT (asfmux, "Failed to send headers");
|
|
return ret;
|
|
} else {
|
|
asfmux->state = GST_ASF_MUX_STATE_DATA;
|
|
}
|
|
}
|
|
|
|
if (G_UNLIKELY (asfmux->state == GST_ASF_MUX_STATE_EOS))
|
|
return GST_FLOW_UNEXPECTED;
|
|
|
|
/* select the earliest buffer */
|
|
walk = asfmux->collect->data;
|
|
while (walk) {
|
|
GstAsfPad *pad;
|
|
GstCollectData *data;
|
|
GstClockTime time;
|
|
|
|
data = (GstCollectData *) walk->data;
|
|
pad = (GstAsfPad *) data;
|
|
|
|
walk = g_slist_next (walk);
|
|
|
|
buf = gst_collect_pads_peek (collect, data);
|
|
if (buf == NULL) {
|
|
GST_LOG_OBJECT (asfmux, "Pad %s has no buffers",
|
|
GST_PAD_NAME (pad->collect.pad));
|
|
continue;
|
|
}
|
|
time = GST_BUFFER_TIMESTAMP (buf);
|
|
|
|
/* check the ts for getting the first time */
|
|
if (!GST_CLOCK_TIME_IS_VALID (pad->first_ts) &&
|
|
GST_CLOCK_TIME_IS_VALID (time)) {
|
|
GST_DEBUG_OBJECT (asfmux, "First ts for stream number %" G_GUINT16_FORMAT
|
|
": %" GST_TIME_FORMAT, pad->stream_number, GST_TIME_ARGS (time));
|
|
pad->first_ts = time;
|
|
if (!GST_CLOCK_TIME_IS_VALID (asfmux->first_ts) ||
|
|
time < asfmux->first_ts) {
|
|
GST_DEBUG_OBJECT (asfmux, "New first ts for file %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (time));
|
|
asfmux->first_ts = time;
|
|
}
|
|
}
|
|
|
|
gst_buffer_unref (buf);
|
|
|
|
if (best_pad == NULL || !GST_CLOCK_TIME_IS_VALID (time) ||
|
|
(GST_CLOCK_TIME_IS_VALID (best_time) && time < best_time)) {
|
|
best_pad = pad;
|
|
best_time = time;
|
|
}
|
|
}
|
|
|
|
if (best_pad != NULL) {
|
|
/* we have data */
|
|
GST_LOG_OBJECT (asfmux, "selected pad %s with time %" GST_TIME_FORMAT,
|
|
GST_PAD_NAME (best_pad->collect.pad), GST_TIME_ARGS (best_time));
|
|
buf = gst_collect_pads_pop (collect, &best_pad->collect);
|
|
ret = gst_asf_mux_process_buffer (asfmux, best_pad, buf);
|
|
} else {
|
|
/* no data, let's finish it up */
|
|
while (asfmux->payloads) {
|
|
ret = gst_asf_mux_flush_payloads (asfmux);
|
|
if (ret != GST_FLOW_OK) {
|
|
return ret;
|
|
}
|
|
}
|
|
g_assert (asfmux->payloads == NULL);
|
|
g_assert (asfmux->payload_data_size == 0);
|
|
/* in not on 'streamable' mode we need to push indexes
|
|
* and update headers */
|
|
if (!asfmux->prop_streamable) {
|
|
ret = gst_asf_mux_stop_file (asfmux);
|
|
}
|
|
if (ret == GST_FLOW_OK) {
|
|
gst_pad_push_event (asfmux->srcpad, gst_event_new_eos ());
|
|
ret = GST_FLOW_UNEXPECTED;
|
|
}
|
|
asfmux->state = GST_ASF_MUX_STATE_EOS;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_asf_mux_pad_reset (GstAsfPad * pad)
|
|
{
|
|
pad->stream_number = 0;
|
|
pad->media_object_number = 0;
|
|
pad->play_duration = (GstClockTime) 0;
|
|
pad->bitrate = 0;
|
|
if (pad->codec_data)
|
|
gst_buffer_unref (pad->codec_data);
|
|
pad->codec_data = NULL;
|
|
if (pad->taglist)
|
|
gst_tag_list_free (pad->taglist);
|
|
pad->taglist = NULL;
|
|
|
|
pad->first_ts = GST_CLOCK_TIME_NONE;
|
|
|
|
if (pad->is_audio) {
|
|
GstAsfAudioPad *audiopad = (GstAsfAudioPad *) pad;
|
|
audiopad->audioinfo.rate = 0;
|
|
audiopad->audioinfo.channels = 0;
|
|
audiopad->audioinfo.format = 0;
|
|
audiopad->audioinfo.av_bps = 0;
|
|
audiopad->audioinfo.blockalign = 0;
|
|
audiopad->audioinfo.size = 0;
|
|
} else {
|
|
GstAsfVideoPad *videopad = (GstAsfVideoPad *) pad;
|
|
videopad->vidinfo.size = 0;
|
|
videopad->vidinfo.width = 0;
|
|
videopad->vidinfo.height = 0;
|
|
videopad->vidinfo.planes = 1;
|
|
videopad->vidinfo.bit_cnt = 0;
|
|
videopad->vidinfo.compression = 0;
|
|
videopad->vidinfo.image_size = 0;
|
|
videopad->vidinfo.xpels_meter = 0;
|
|
videopad->vidinfo.ypels_meter = 0;
|
|
videopad->vidinfo.num_colors = 0;
|
|
videopad->vidinfo.imp_colors = 0;
|
|
|
|
videopad->last_keyframe_packet = 0;
|
|
videopad->has_keyframe = FALSE;
|
|
videopad->last_keyframe_packet_count = 0;
|
|
videopad->max_keyframe_packet_count = 0;
|
|
videopad->next_index_time = 0;
|
|
videopad->time_interval = DEFAULT_SIMPLE_INDEX_TIME_INTERVAL;
|
|
if (videopad->simple_index) {
|
|
GSList *walk;
|
|
for (walk = videopad->simple_index; walk; walk = g_slist_next (walk)) {
|
|
g_free (walk->data);
|
|
walk->data = NULL;
|
|
}
|
|
g_slist_free (videopad->simple_index);
|
|
}
|
|
videopad->simple_index = NULL;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_asf_mux_audio_set_caps (GstPad * pad, GstCaps * caps)
|
|
{
|
|
GstAsfMux *asfmux;
|
|
GstAsfAudioPad *audiopad;
|
|
GstStructure *structure;
|
|
const gchar *caps_name;
|
|
gint channels, rate;
|
|
gchar *aux;
|
|
const GValue *codec_data;
|
|
|
|
asfmux = GST_ASF_MUX (gst_pad_get_parent (pad));
|
|
|
|
audiopad = (GstAsfAudioPad *) gst_pad_get_element_private (pad);
|
|
g_assert (audiopad);
|
|
|
|
aux = gst_caps_to_string (caps);
|
|
GST_DEBUG_OBJECT (asfmux, "%s:%s, caps=%s", GST_DEBUG_PAD_NAME (pad), aux);
|
|
g_free (aux);
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
caps_name = gst_structure_get_name (structure);
|
|
|
|
if (!gst_structure_get_int (structure, "channels", &channels) ||
|
|
!gst_structure_get_int (structure, "rate", &rate))
|
|
goto refuse_caps;
|
|
|
|
audiopad->audioinfo.channels = (guint16) channels;
|
|
audiopad->audioinfo.rate = (guint32) rate;
|
|
|
|
/* taken from avimux
|
|
* codec initialization data, if any
|
|
*/
|
|
codec_data = gst_structure_get_value (structure, "codec_data");
|
|
if (codec_data) {
|
|
audiopad->pad.codec_data = gst_value_get_buffer (codec_data);
|
|
gst_buffer_ref (audiopad->pad.codec_data);
|
|
}
|
|
|
|
if (strcmp (caps_name, "audio/x-wma") == 0) {
|
|
gint version;
|
|
gint block_align = 0;
|
|
gint bitrate = 0;
|
|
|
|
if (!gst_structure_get_int (structure, "wmaversion", &version)) {
|
|
goto refuse_caps;
|
|
}
|
|
|
|
if (gst_structure_get_int (structure, "block_align", &block_align)) {
|
|
audiopad->audioinfo.blockalign = (guint16) block_align;
|
|
}
|
|
if (gst_structure_get_int (structure, "bitrate", &bitrate)) {
|
|
audiopad->pad.bitrate = (guint32) bitrate;
|
|
audiopad->audioinfo.av_bps = bitrate / 8;
|
|
}
|
|
|
|
if (version == 1) {
|
|
audiopad->audioinfo.format = GST_RIFF_WAVE_FORMAT_WMAV1;
|
|
} else if (version == 2) {
|
|
audiopad->audioinfo.format = GST_RIFF_WAVE_FORMAT_WMAV2;
|
|
} else if (version == 3) {
|
|
audiopad->audioinfo.format = GST_RIFF_WAVE_FORMAT_WMAV3;
|
|
} else {
|
|
goto refuse_caps;
|
|
}
|
|
} else if (strcmp (caps_name, "audio/mpeg") == 0) {
|
|
gint version;
|
|
gint layer;
|
|
|
|
if (!gst_structure_get_int (structure, "mpegversion", &version) ||
|
|
!gst_structure_get_int (structure, "layer", &layer)) {
|
|
goto refuse_caps;
|
|
}
|
|
if (version != 1 || layer != 3) {
|
|
goto refuse_caps;
|
|
}
|
|
|
|
audiopad->audioinfo.format = GST_RIFF_WAVE_FORMAT_MPEGL3;
|
|
} else {
|
|
goto refuse_caps;
|
|
}
|
|
|
|
gst_object_unref (asfmux);
|
|
return TRUE;
|
|
|
|
refuse_caps:
|
|
GST_WARNING_OBJECT (asfmux, "pad %s refused caps %" GST_PTR_FORMAT,
|
|
GST_PAD_NAME (pad), caps);
|
|
gst_object_unref (asfmux);
|
|
return FALSE;
|
|
}
|
|
|
|
/* TODO Read pixel aspect ratio */
|
|
static gboolean
|
|
gst_asf_mux_video_set_caps (GstPad * pad, GstCaps * caps)
|
|
{
|
|
GstAsfMux *asfmux;
|
|
GstAsfVideoPad *videopad;
|
|
GstStructure *structure;
|
|
const gchar *caps_name;
|
|
gint width, height;
|
|
gchar *aux;
|
|
const GValue *codec_data;
|
|
|
|
asfmux = GST_ASF_MUX (gst_pad_get_parent (pad));
|
|
|
|
videopad = (GstAsfVideoPad *) gst_pad_get_element_private (pad);
|
|
g_assert (videopad);
|
|
|
|
aux = gst_caps_to_string (caps);
|
|
GST_DEBUG_OBJECT (asfmux, "%s:%s, caps=%s", GST_DEBUG_PAD_NAME (pad), aux);
|
|
g_free (aux);
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
caps_name = gst_structure_get_name (structure);
|
|
|
|
if (!gst_structure_get_int (structure, "width", &width) ||
|
|
!gst_structure_get_int (structure, "height", &height))
|
|
goto refuse_caps;
|
|
|
|
videopad->vidinfo.width = (gint32) width;
|
|
videopad->vidinfo.height = (gint32) height;
|
|
|
|
/* taken from avimux
|
|
* codec initialization data, if any
|
|
*/
|
|
codec_data = gst_structure_get_value (structure, "codec_data");
|
|
if (codec_data) {
|
|
videopad->pad.codec_data = gst_value_get_buffer (codec_data);
|
|
gst_buffer_ref (videopad->pad.codec_data);
|
|
}
|
|
|
|
if (strcmp (caps_name, "video/x-wmv") == 0) {
|
|
guint32 fourcc;
|
|
|
|
videopad->vidinfo.bit_cnt = 24;
|
|
|
|
/* in case we have a fourcc, we use it */
|
|
if (gst_structure_get_fourcc (structure, "format", &fourcc)) {
|
|
videopad->vidinfo.compression = fourcc;
|
|
} else {
|
|
gint version;
|
|
if (!gst_structure_get_int (structure, "wmvversion", &version))
|
|
goto refuse_caps;
|
|
if (version == 2) {
|
|
videopad->vidinfo.compression = GST_MAKE_FOURCC ('W', 'M', 'V', '2');
|
|
} else if (version == 1) {
|
|
videopad->vidinfo.compression = GST_MAKE_FOURCC ('W', 'M', 'V', '1');
|
|
} else if (version == 3) {
|
|
videopad->vidinfo.compression = GST_MAKE_FOURCC ('W', 'M', 'V', '3');
|
|
} else {
|
|
goto refuse_caps;
|
|
}
|
|
}
|
|
} else {
|
|
goto refuse_caps;
|
|
}
|
|
|
|
gst_object_unref (asfmux);
|
|
return TRUE;
|
|
|
|
refuse_caps:
|
|
GST_WARNING_OBJECT (asfmux, "pad %s refused caps %" GST_PTR_FORMAT,
|
|
GST_PAD_NAME (pad), caps);
|
|
gst_object_unref (asfmux);
|
|
return FALSE;
|
|
}
|
|
|
|
static GstPad *
|
|
gst_asf_mux_request_new_pad (GstElement * element,
|
|
GstPadTemplate * templ, const gchar * req_name)
|
|
{
|
|
GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
|
|
GstAsfMux *asfmux = GST_ASF_MUX_CAST (element);
|
|
GstPad *newpad;
|
|
GstAsfPad *collect_pad;
|
|
gboolean is_audio;
|
|
guint collect_size = 0;
|
|
gchar *name;
|
|
|
|
GST_DEBUG_OBJECT (asfmux, "Requested pad: %s", GST_STR_NULL (req_name));
|
|
|
|
if (asfmux->state != GST_ASF_MUX_STATE_NONE) {
|
|
GST_WARNING_OBJECT (asfmux, "Not providing request pad after element is at "
|
|
"paused/playing state.");
|
|
return NULL;
|
|
}
|
|
|
|
if (templ == gst_element_class_get_pad_template (klass, "audio_%d")) {
|
|
name = g_strdup_printf ("audio_%02d", asfmux->stream_number + 1);
|
|
GST_DEBUG_OBJECT (asfmux, "Adding new pad %s", name);
|
|
newpad = gst_pad_new_from_template (templ, name);
|
|
g_free (name);
|
|
is_audio = TRUE;
|
|
gst_pad_set_setcaps_function (newpad,
|
|
GST_DEBUG_FUNCPTR (gst_asf_mux_audio_set_caps));
|
|
} else if (templ == gst_element_class_get_pad_template (klass, "video_%d")) {
|
|
name = g_strdup_printf ("video_%02d", asfmux->stream_number + 1);
|
|
GST_DEBUG_OBJECT (asfmux, "Adding new pad %s", name);
|
|
newpad = gst_pad_new_from_template (templ, name);
|
|
g_free (name);
|
|
is_audio = FALSE;
|
|
gst_pad_set_setcaps_function (newpad,
|
|
GST_DEBUG_FUNCPTR (gst_asf_mux_video_set_caps));
|
|
} else {
|
|
GST_WARNING_OBJECT (asfmux, "This is not our template!");
|
|
return NULL;
|
|
}
|
|
|
|
/* add pad to collections */
|
|
if (is_audio) {
|
|
collect_size = sizeof (GstAsfAudioPad);
|
|
} else {
|
|
collect_size = sizeof (GstAsfVideoPad);
|
|
}
|
|
collect_pad = (GstAsfPad *)
|
|
gst_collect_pads_add_pad_full (asfmux->collect, newpad, collect_size,
|
|
(GstCollectDataDestroyNotify) (gst_asf_mux_pad_reset), TRUE);
|
|
|
|
/* set up pad */
|
|
collect_pad->is_audio = is_audio;
|
|
if (!is_audio)
|
|
((GstAsfVideoPad *) collect_pad)->simple_index = NULL;
|
|
collect_pad->taglist = NULL;
|
|
gst_asf_mux_pad_reset (collect_pad);
|
|
|
|
/* set pad stream number */
|
|
asfmux->stream_number += 1;
|
|
collect_pad->stream_number = asfmux->stream_number;
|
|
|
|
/* FIXME: hacked way to override/extend the event function of
|
|
* GstCollectPads; because it sets its own event function giving
|
|
* the element no access to events.
|
|
*/
|
|
asfmux->collect_event = (GstPadEventFunction) GST_PAD_EVENTFUNC (newpad);
|
|
gst_pad_set_event_function (newpad,
|
|
GST_DEBUG_FUNCPTR (gst_asf_mux_sink_event));
|
|
|
|
gst_pad_set_active (newpad, TRUE);
|
|
gst_element_add_pad (element, newpad);
|
|
|
|
return newpad;
|
|
}
|
|
|
|
static void
|
|
gst_asf_mux_get_property (GObject * object,
|
|
guint prop_id, GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstAsfMux *asfmux;
|
|
|
|
asfmux = GST_ASF_MUX (object);
|
|
switch (prop_id) {
|
|
case PROP_PACKET_SIZE:
|
|
g_value_set_uint (value, asfmux->prop_packet_size);
|
|
break;
|
|
case PROP_PREROLL:
|
|
g_value_set_uint64 (value, asfmux->prop_preroll);
|
|
break;
|
|
case PROP_MERGE_STREAM_TAGS:
|
|
g_value_set_boolean (value, asfmux->prop_merge_stream_tags);
|
|
break;
|
|
case PROP_PADDING:
|
|
g_value_set_uint64 (value, asfmux->prop_padding);
|
|
break;
|
|
case PROP_IS_LIVE:
|
|
GST_WARNING_OBJECT (object, "The 'is-live' property is deprecated, use "
|
|
"the 'streamable' property instead");
|
|
g_value_set_boolean (value, asfmux->prop_streamable);
|
|
break;
|
|
case PROP_STREAMABLE:
|
|
g_value_set_boolean (value, asfmux->prop_streamable);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_asf_mux_set_property (GObject * object,
|
|
guint prop_id, const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstAsfMux *asfmux;
|
|
|
|
asfmux = GST_ASF_MUX (object);
|
|
switch (prop_id) {
|
|
case PROP_PACKET_SIZE:
|
|
asfmux->prop_packet_size = g_value_get_uint (value);
|
|
break;
|
|
case PROP_PREROLL:
|
|
asfmux->prop_preroll = g_value_get_uint64 (value);
|
|
break;
|
|
case PROP_MERGE_STREAM_TAGS:
|
|
asfmux->prop_merge_stream_tags = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_PADDING:
|
|
asfmux->prop_padding = g_value_get_uint64 (value);
|
|
break;
|
|
case PROP_IS_LIVE:
|
|
g_warning ("This property is deprecated, use 'streamable' instead");
|
|
asfmux->prop_streamable = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_STREAMABLE:
|
|
asfmux->prop_streamable = g_value_get_boolean (value);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_asf_mux_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstAsfMux *asfmux;
|
|
GstStateChangeReturn ret;
|
|
|
|
asfmux = GST_ASF_MUX (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
/* TODO - check if it is possible to mux 2 files without going
|
|
* through here */
|
|
asfmux->payload_parsing_info_size =
|
|
gst_asf_mux_find_payload_parsing_info_size (asfmux);
|
|
asfmux->packet_size = asfmux->prop_packet_size;
|
|
asfmux->preroll = asfmux->prop_preroll;
|
|
asfmux->merge_stream_tags = asfmux->prop_merge_stream_tags;
|
|
gst_collect_pads_start (asfmux->collect);
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
gst_collect_pads_stop (asfmux->collect);
|
|
asfmux->state = GST_ASF_MUX_STATE_NONE;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
goto done;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
done:
|
|
return ret;
|
|
}
|
|
|
|
gboolean
|
|
gst_asf_mux_plugin_init (GstPlugin * plugin)
|
|
{
|
|
return gst_element_register (plugin, "asfmux",
|
|
GST_RANK_PRIMARY, GST_TYPE_ASF_MUX);
|
|
}
|