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d90ee5bfa3
Original commit message from CVS: Port from GstData to GstMiniObject. * ext/ogg/gstoggdemux.c: (gst_ogg_pad_dispose): * ext/ogg/gstoggmux.c: (gst_ogg_mux_buffer_from_page), (gst_ogg_mux_queue_pads), (gst_ogg_mux_set_header_on_caps), (gst_ogg_mux_collected): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_comment_packet), (theora_handle_data_packet): * ext/theora/theoraenc.c: (theora_buffer_from_packet), (theora_set_header_on_caps), (theora_enc_chain): * ext/vorbis/vorbisdec.c: (vorbis_dec_sink_event), (vorbis_handle_comment_packet): * ext/vorbis/vorbisenc.c: (gst_vorbisenc_set_header_on_caps): * ext/vorbis/vorbisparse.c: (vorbis_parse_set_header_on_caps): * gst-libs/gst/audio/gstaudiofilter.c: (gst_audiofilter_chain): * gst-libs/gst/tag/gstvorbistag.c: (gst_vorbis_tag_chain): * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_get_buffer): * gst/playback/gstdecodebin.c: (gst_decode_bin_class_init): * gst/playback/gstplaybasebin.c: (check_queue), (probe_triggered), (mute_stream), (silence_stream): * gst/playback/gstplaybin.c: (gst_play_bin_class_init): * gst/volume/gstvolume.c: (volume_transform): * sys/ximage/ximagesink.c: (gst_ximage_buffer_finalize), (gst_ximage_buffer_init), (gst_ximage_buffer_class_init), (gst_ximage_buffer_get_type), (gst_ximagesink_check_xshm_calls), (gst_ximagesink_ximage_new), (gst_ximagesink_ximage_destroy), (gst_ximagesink_ximage_put), (gst_ximagesink_imagepool_clear), (gst_ximagesink_show_frame), (gst_ximagesink_buffer_free), (gst_ximagesink_buffer_alloc): * sys/ximage/ximagesink.h:
1177 lines
32 KiB
C
1177 lines
32 KiB
C
/* OGG muxer plugin for GStreamer
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* Copyright (C) 2004 Wim Taymans <wim@fluendo.com>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/base/gstcollectpads.h>
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#include <ogg/ogg.h>
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/* memcpy - if someone knows a way to get rid of it, please speak up
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* note: the ogg docs even say you need this... */
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#include <string.h>
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#include <time.h>
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GST_DEBUG_CATEGORY_STATIC (gst_ogg_mux_debug);
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#define GST_CAT_DEFAULT gst_ogg_mux_debug
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#define GST_TYPE_OGG_MUX (gst_ogg_mux_get_type())
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#define GST_OGG_MUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OGG_MUX, GstOggMux))
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#define GST_OGG_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OGG_MUX, GstOggMux))
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#define GST_IS_OGG_MUX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OGG_MUX))
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#define GST_IS_OGG_MUX_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OGG_MUX))
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typedef struct _GstOggMux GstOggMux;
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typedef struct _GstOggMuxClass GstOggMuxClass;
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typedef enum
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{
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GST_OGG_PAD_STATE_CONTROL = 0,
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GST_OGG_PAD_STATE_DATA = 1
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}
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GstOggPadState;
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/* all information needed for one ogg stream */
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typedef struct
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{
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GstCollectData collect; /* we extend the CollectData */
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GstBuffer *buffer; /* the queued buffer for this pad */
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gint serial;
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ogg_stream_state stream;
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gint64 packetno; /* number of next packet */
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gint64 pageno; /* number of next page */
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guint64 duration; /* duration of current page */
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gboolean eos;
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gint64 offset;
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GstOggPadState state; /* state of the pad */
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GList *headers;
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gboolean new_page; /* starting a new page */
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gboolean first_delta; /* was the first packet in the page a delta */
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gboolean prev_delta; /* was the previous buffer a delta frame */
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}
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GstOggPad;
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struct _GstOggMux
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{
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GstElement element;
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/* source pad */
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GstPad *srcpad;
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/* sinkpads */
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GstCollectPads *collect;
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/* the pad we are currently using to fill a page */
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GstOggPad *pulling;
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/* next timestamp for the page */
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GstClockTime next_ts;
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/* offset in stream */
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guint64 offset;
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/* need_headers */
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gboolean need_headers;
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guint64 max_delay;
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guint64 max_page_delay;
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GstOggPad *delta_pad; /* when a delta frame is detected on a stream, we mark
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pages as delta frames up to the page that has the
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keyframe */
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};
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typedef enum
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{
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GST_OGG_FLAG_BOS = GST_ELEMENT_FLAG_LAST,
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GST_OGG_FLAG_EOS
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}
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GstOggFlag;
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struct _GstOggMuxClass
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{
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GstElementClass parent_class;
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};
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/* elementfactory information */
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static GstElementDetails gst_ogg_mux_details = GST_ELEMENT_DETAILS ("ogg muxer",
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"Codec/Muxer",
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"mux ogg streams (info about ogg: http://xiph.org)",
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"Wim Taymans <wim@fluendo.com>");
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/* OggMux signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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/* set to 0.5 seconds by default */
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#define DEFAULT_MAX_DELAY 500000000LL
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#define DEFAULT_MAX_PAGE_DELAY 500000000LL
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enum
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{
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ARG_0,
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ARG_MAX_DELAY,
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ARG_MAX_PAGE_DELAY,
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};
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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 ("application/ogg")
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);
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static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink_%d",
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GST_PAD_SINK,
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GST_PAD_REQUEST,
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GST_STATIC_CAPS ("video/x-theora; "
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"audio/x-vorbis; audio/x-flac; audio/x-speex; "
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"application/x-ogm-video; application/x-ogm-audio")
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);
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static void gst_ogg_mux_base_init (gpointer g_class);
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static void gst_ogg_mux_class_init (GstOggMuxClass * klass);
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static void gst_ogg_mux_init (GstOggMux * ogg_mux);
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static GstFlowReturn
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gst_ogg_mux_collected (GstCollectPads * pads, GstOggMux * ogg_mux);
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static gboolean gst_ogg_mux_handle_src_event (GstPad * pad, GstEvent * event);
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static GstPad *gst_ogg_mux_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * name);
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static void gst_ogg_mux_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec);
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static void gst_ogg_mux_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec);
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static GstElementStateReturn gst_ogg_mux_change_state (GstElement * element);
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static GstElementClass *parent_class = NULL;
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/*static guint gst_ogg_mux_signals[LAST_SIGNAL] = { 0 }; */
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GType
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gst_ogg_mux_get_type (void)
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{
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static GType ogg_mux_type = 0;
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if (!ogg_mux_type) {
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static const GTypeInfo ogg_mux_info = {
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sizeof (GstOggMuxClass),
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gst_ogg_mux_base_init,
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NULL,
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(GClassInitFunc) gst_ogg_mux_class_init,
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NULL,
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NULL,
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sizeof (GstOggMux),
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0,
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(GInstanceInitFunc) gst_ogg_mux_init,
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};
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ogg_mux_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstOggMux", &ogg_mux_info,
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0);
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}
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return ogg_mux_type;
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}
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static void
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gst_ogg_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 (&sink_factory));
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gst_element_class_set_details (element_class, &gst_ogg_mux_details);
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}
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static void
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gst_ogg_mux_class_init (GstOggMuxClass * 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_ref (GST_TYPE_ELEMENT);
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gobject_class->get_property = gst_ogg_mux_get_property;
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gobject_class->set_property = gst_ogg_mux_set_property;
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gstelement_class->request_new_pad = gst_ogg_mux_request_new_pad;
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g_object_class_install_property (gobject_class, ARG_MAX_DELAY,
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g_param_spec_uint64 ("max-delay", "Max delay",
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"Maximum delay in multiplexing streams", 0, G_MAXUINT64,
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DEFAULT_MAX_DELAY, (GParamFlags) G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_MAX_PAGE_DELAY,
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g_param_spec_uint64 ("max-page-delay", "Max page delay",
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"Maximum delay for sending out a page", 0, G_MAXUINT64,
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DEFAULT_MAX_PAGE_DELAY, (GParamFlags) G_PARAM_READWRITE));
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gstelement_class->change_state = gst_ogg_mux_change_state;
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}
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#if 0
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static const GstEventMask *
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gst_ogg_mux_get_sink_event_masks (GstPad * pad)
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{
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static const GstEventMask gst_ogg_mux_sink_event_masks[] = {
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{GST_EVENT_EOS, 0},
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{GST_EVENT_DISCONTINUOUS, 0},
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{0,}
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};
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return gst_ogg_mux_sink_event_masks;
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}
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#endif
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static void
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gst_ogg_mux_init (GstOggMux * ogg_mux)
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{
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GstElementClass *klass = GST_ELEMENT_GET_CLASS (ogg_mux);
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ogg_mux->srcpad =
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gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
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"src"), "src");
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gst_pad_set_event_function (ogg_mux->srcpad, gst_ogg_mux_handle_src_event);
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gst_element_add_pad (GST_ELEMENT (ogg_mux), ogg_mux->srcpad);
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GST_FLAG_SET (GST_ELEMENT (ogg_mux), GST_OGG_FLAG_BOS);
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/* seed random number generator for creation of serial numbers */
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srand (time (NULL));
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ogg_mux->collect = gst_collectpads_new ();
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gst_collectpads_set_function (ogg_mux->collect,
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(GstCollectPadsFunction) gst_ogg_mux_collected, ogg_mux);
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ogg_mux->pulling = NULL;
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ogg_mux->need_headers = TRUE;
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ogg_mux->max_delay = DEFAULT_MAX_DELAY;
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ogg_mux->max_page_delay = DEFAULT_MAX_PAGE_DELAY;
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ogg_mux->delta_pad = NULL;
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}
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static GstPadLinkReturn
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gst_ogg_mux_sinkconnect (GstPad * pad, GstPad * peer)
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{
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GstOggMux *ogg_mux;
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ogg_mux = GST_OGG_MUX (gst_pad_get_parent (pad));
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GST_DEBUG_OBJECT (ogg_mux, "sinkconnect triggered on %s",
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gst_pad_get_name (pad));
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return GST_PAD_LINK_OK;
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}
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static GstPad *
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gst_ogg_mux_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * req_name)
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{
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GstOggMux *ogg_mux;
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GstPad *newpad;
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GstElementClass *klass;
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g_return_val_if_fail (templ != NULL, NULL);
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if (templ->direction != GST_PAD_SINK)
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goto wrong_direction;
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g_return_val_if_fail (GST_IS_OGG_MUX (element), NULL);
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ogg_mux = GST_OGG_MUX (element);
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klass = GST_ELEMENT_GET_CLASS (element);
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if (templ != gst_element_class_get_pad_template (klass, "sink_%d"))
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goto wrong_template;
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{
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gint serial;
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gchar *name;
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if (req_name == NULL || strlen (req_name) < 6) {
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/* no name given when requesting the pad, use random serial number */
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serial = rand ();
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} else {
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/* parse serial number from requested padname */
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serial = atoi (&req_name[5]);
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}
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/* create new pad with the name */
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name = g_strdup_printf ("sink_%d", serial);
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newpad = gst_pad_new_from_template (templ, name);
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g_free (name);
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/* construct our own wrapper data structure for the pad to
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* keep track of its status */
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{
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GstOggPad *oggpad;
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oggpad = (GstOggPad *)
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gst_collectpads_add_pad (ogg_mux->collect, newpad,
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sizeof (GstOggPad));
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oggpad->serial = serial;
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ogg_stream_init (&oggpad->stream, serial);
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oggpad->packetno = 0;
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oggpad->pageno = 0;
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oggpad->eos = FALSE;
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/* we assume there will be some control data first for this pad */
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oggpad->state = GST_OGG_PAD_STATE_CONTROL;
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oggpad->new_page = TRUE;
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oggpad->first_delta = FALSE;
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oggpad->prev_delta = FALSE;
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}
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}
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/* setup some pad functions */
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gst_pad_set_link_function (newpad, gst_ogg_mux_sinkconnect);
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/* dd the pad to the element */
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gst_element_add_pad (element, newpad);
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return newpad;
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/* ERRORS */
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wrong_direction:
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{
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g_warning ("ogg_mux: request pad that is not a SINK pad\n");
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return NULL;
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}
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wrong_template:
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{
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g_warning ("ogg_mux: this is not our template!\n");
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return NULL;
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}
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}
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/* handle events */
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static gboolean
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gst_ogg_mux_handle_src_event (GstPad * pad, GstEvent * event)
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{
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GstOggMux *ogg_mux;
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GstEventType type;
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ogg_mux = GST_OGG_MUX (gst_pad_get_parent (pad));
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type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
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switch (type) {
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case GST_EVENT_SEEK:
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/* disable seeking for now */
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return FALSE;
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default:
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break;
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}
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return gst_pad_event_default (pad, event);
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}
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#if 0
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static GstBuffer *
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gst_ogg_mux_next_buffer (GstOggPad * pad, gboolean * interrupt)
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{
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GstData *data = NULL;
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GstBuffer *buffer = NULL;
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while (buffer == NULL) {
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//gst_pad_pull (pad->pad, &buffer);
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GST_DEBUG ("muxer: pulled %s:%s %p", GST_DEBUG_PAD_NAME (pad->pad), data);
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/* if it's an event, handle it */
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if (GST_IS_EVENT (data)) {
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GstEventType type;
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GstOggMux *ogg_mux;
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GstEvent *event = GST_EVENT (data);
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ogg_mux = GST_OGG_MUX (gst_pad_get_parent (pad->pad));
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type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
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switch (type) {
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case GST_EVENT_EOS:
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pad->eos = TRUE;
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gst_event_unref (event);
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return NULL;
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case GST_EVENT_DISCONTINUOUS:
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{
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guint64 start_value, end_value;
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if (gst_event_discont_get_value (event, GST_FORMAT_TIME,
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&start_value, &end_value)) {
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GST_DEBUG_OBJECT (ogg_mux,
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"got discont of %" G_GUINT64_FORMAT " and %" G_GUINT64_FORMAT
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" on pad %s:%s", start_value, end_value,
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GST_DEBUG_PAD_NAME (pad->pad));
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}
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pad->offset = start_value;
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gst_event_unref (event);
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}
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break;
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default:
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gst_pad_event_default (pad->pad, event);
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break;
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}
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data = NULL;
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} else {
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GstBuffer *buf = GST_BUFFER (data);
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gboolean incaps;
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incaps = GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_IN_CAPS);
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/* if we need headers */
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if (pad->state == GST_OGG_PAD_STATE_CONTROL) {
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/* and we have one */
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if (incaps) {
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GST_DEBUG ("muxer: got incaps buffer in control state, ignoring");
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/* just ignore */
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gst_buffer_unref (buf);
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|
/* pull next one in next iteration */
|
|
data = NULL;
|
|
} else {
|
|
GST_DEBUG
|
|
("muxer: got data buffer in control state, switching to data mode");
|
|
/* this is a data buffer so switch to data state */
|
|
pad->state = GST_OGG_PAD_STATE_DATA;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return GST_BUFFER (data);
|
|
}
|
|
#endif
|
|
|
|
static GstBuffer *
|
|
gst_ogg_mux_buffer_from_page (GstOggMux * mux, ogg_page * page, gboolean delta)
|
|
{
|
|
GstBuffer *buffer;
|
|
|
|
/* allocate space for header and body */
|
|
buffer = gst_pad_alloc_buffer (mux->srcpad, GST_BUFFER_OFFSET_NONE,
|
|
page->header_len + page->body_len, NULL);
|
|
memcpy (GST_BUFFER_DATA (buffer), page->header, page->header_len);
|
|
memcpy (GST_BUFFER_DATA (buffer) + page->header_len,
|
|
page->body, page->body_len);
|
|
|
|
/* next_ts was the timestamp of the first buffer put in this page */
|
|
GST_BUFFER_TIMESTAMP (buffer) = mux->next_ts;
|
|
GST_BUFFER_OFFSET (buffer) = mux->offset;
|
|
mux->offset += GST_BUFFER_SIZE (buffer);
|
|
GST_BUFFER_OFFSET_END (buffer) = mux->offset;
|
|
if (delta)
|
|
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
|
|
return buffer;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_ogg_mux_push_page (GstOggMux * mux, ogg_page * page, gboolean delta)
|
|
{
|
|
GstBuffer *buffer;
|
|
GstFlowReturn ret;
|
|
|
|
buffer = gst_ogg_mux_buffer_from_page (mux, page, delta);
|
|
|
|
ret = gst_pad_push (mux->srcpad, buffer);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Given two pads, compare the buffers queued on it and return 0 if they have
|
|
* an equal priority, 1 if the new pad is better, -1 if the old pad is better
|
|
*/
|
|
static gint
|
|
gst_ogg_mux_compare_pads (GstOggMux * ogg_mux, GstOggPad * old, GstOggPad * new)
|
|
{
|
|
guint64 oldtime, newtime;
|
|
|
|
/* if the old pad doesn't contain anything or is even NULL, return
|
|
* the new pad as best candidate and vice versa */
|
|
if (old == NULL || old->buffer == NULL)
|
|
return 1;
|
|
if (new == NULL || new->buffer == NULL)
|
|
return -1;
|
|
|
|
/* no timestamp on old buffer, it must go first */
|
|
oldtime = GST_BUFFER_TIMESTAMP (old->buffer);
|
|
if (oldtime == GST_CLOCK_TIME_NONE)
|
|
return -1;
|
|
|
|
/* no timestamp on new buffer, it must go first */
|
|
newtime = GST_BUFFER_TIMESTAMP (new->buffer);
|
|
if (newtime == GST_CLOCK_TIME_NONE)
|
|
return 1;
|
|
|
|
/* old buffer has higher timestamp, new one should go first */
|
|
if (newtime < oldtime)
|
|
return 1;
|
|
/* new buffer has higher timestamp, old one should go first */
|
|
else if (newtime > oldtime)
|
|
return -1;
|
|
else {
|
|
/* buffers with equal timestamps, prefer the pad that has the
|
|
* least number of pages muxed */
|
|
if (new->pageno < old->pageno)
|
|
return 1;
|
|
else if (new->pageno > old->pageno)
|
|
return -1;
|
|
}
|
|
|
|
/* same priority if all of the above failed */
|
|
return 0;
|
|
}
|
|
|
|
/* make sure a buffer is queued on all pads, returns a pointer to an oggpad
|
|
* that holds the best buffer or NULL when no pad was usable */
|
|
static GstOggPad *
|
|
gst_ogg_mux_queue_pads (GstOggMux * ogg_mux)
|
|
{
|
|
GstOggPad *bestpad = NULL;
|
|
GSList *walk;
|
|
|
|
/* try to make sure we have a buffer from each usable pad first */
|
|
walk = ogg_mux->collect->data;
|
|
while (walk) {
|
|
GstOggPad *pad;
|
|
GstCollectData *data;
|
|
|
|
data = (GstCollectData *) walk->data;
|
|
pad = (GstOggPad *) data;
|
|
|
|
walk = g_slist_next (walk);
|
|
|
|
if (data->eos)
|
|
continue;
|
|
|
|
/* try to get a new buffer for this pad if needed and possible */
|
|
if (pad->buffer == NULL) {
|
|
GstBuffer *buf;
|
|
gboolean incaps;
|
|
|
|
buf = gst_collectpads_pop (ogg_mux->collect, data);
|
|
|
|
incaps = GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_IN_CAPS);
|
|
/* if we need headers */
|
|
if (pad->state == GST_OGG_PAD_STATE_CONTROL) {
|
|
/* and we have one */
|
|
if (incaps) {
|
|
GST_DEBUG ("muxer: got incaps buffer in control state, ignoring");
|
|
/* just ignore */
|
|
gst_buffer_unref (buf);
|
|
buf = NULL;
|
|
} else {
|
|
GST_DEBUG
|
|
("muxer: got data buffer in control state, switching to data mode");
|
|
/* this is a data buffer so switch to data state */
|
|
pad->state = GST_OGG_PAD_STATE_DATA;
|
|
}
|
|
}
|
|
pad->buffer = buf;
|
|
}
|
|
|
|
/* we should have a buffer now, see if it is the best pad to
|
|
* pull on */
|
|
if (pad->buffer != NULL) {
|
|
if (gst_ogg_mux_compare_pads (ogg_mux, bestpad, pad) > 0) {
|
|
bestpad = pad;
|
|
}
|
|
}
|
|
}
|
|
return bestpad;
|
|
}
|
|
|
|
static GList *
|
|
gst_ogg_mux_get_headers (GstOggPad * pad)
|
|
{
|
|
GList *res = NULL;
|
|
GstOggMux *ogg_mux;
|
|
GstStructure *structure;
|
|
const GstCaps *caps;
|
|
GstPad *thepad;
|
|
|
|
thepad = pad->collect.pad;
|
|
|
|
ogg_mux = GST_OGG_MUX (GST_PAD_PARENT (thepad));
|
|
|
|
GST_LOG ("getting headers from pad %s:%s", GST_DEBUG_PAD_NAME (thepad));
|
|
|
|
caps = gst_pad_get_negotiated_caps (thepad);
|
|
if (caps != NULL) {
|
|
const GValue *streamheader;
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
streamheader = gst_structure_get_value (structure, "streamheader");
|
|
if (streamheader != NULL) {
|
|
GST_LOG ("got header");
|
|
if (G_VALUE_TYPE (streamheader) == GST_TYPE_FIXED_LIST) {
|
|
GArray *bufarr = g_value_peek_pointer (streamheader);
|
|
gint i;
|
|
|
|
GST_LOG ("got fixed list");
|
|
|
|
for (i = 0; i < bufarr->len; i++) {
|
|
GValue *bufval = &g_array_index (bufarr, GValue, i);
|
|
|
|
GST_LOG ("item %d", i);
|
|
if (G_VALUE_TYPE (bufval) == GST_TYPE_BUFFER) {
|
|
GstBuffer *buf = g_value_peek_pointer (bufval);
|
|
|
|
GST_LOG ("adding item %d to header list", i);
|
|
|
|
gst_buffer_ref (buf);
|
|
res = g_list_append (res, buf);
|
|
}
|
|
}
|
|
} else {
|
|
GST_LOG ("streamheader is not fixed list");
|
|
}
|
|
} else {
|
|
GST_LOG ("caps done have streamheader");
|
|
}
|
|
} else {
|
|
GST_LOG ("got empty caps as negotiated format");
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_ogg_mux_set_header_on_caps (GstCaps * caps, GList * buffers)
|
|
{
|
|
GstStructure *structure;
|
|
GValue list = { 0 };
|
|
GList *walk = buffers;
|
|
|
|
caps = gst_caps_make_writable (caps);
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
/* put buffers in a fixed list */
|
|
g_value_init (&list, GST_TYPE_FIXED_LIST);
|
|
|
|
while (walk) {
|
|
GstBuffer *buf = GST_BUFFER (walk->data);
|
|
GValue value = { 0 };
|
|
|
|
walk = walk->next;
|
|
|
|
/* mark buffer */
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_IN_CAPS);
|
|
|
|
g_value_init (&value, GST_TYPE_BUFFER);
|
|
g_value_set_boxed (&value, buf);
|
|
gst_value_list_append_value (&list, &value);
|
|
g_value_unset (&value);
|
|
}
|
|
gst_structure_set_value (structure, "streamheader", &list);
|
|
g_value_unset (&list);
|
|
|
|
return caps;
|
|
}
|
|
|
|
/**
|
|
* For each pad we need to write out one (small) header in one
|
|
* page that allows decoders to identify the type of the stream.
|
|
* After that we need to write out all extra info for the decoders.
|
|
* In the case of a codec that also needs data as configuration, we can
|
|
* find that info in the streamcaps.
|
|
* After writing the headers we must start a new page for the data.
|
|
*/
|
|
static GstFlowReturn
|
|
gst_ogg_mux_send_headers (GstOggMux * mux)
|
|
{
|
|
GSList *walk;
|
|
GList *hbufs, *hwalk;
|
|
GstCaps *caps;
|
|
GstFlowReturn ret;
|
|
|
|
hbufs = NULL;
|
|
ret = GST_FLOW_OK;
|
|
|
|
GST_LOG ("collecting headers");
|
|
|
|
walk = mux->collect->data;
|
|
while (walk) {
|
|
GstOggPad *pad;
|
|
GstPad *thepad;
|
|
|
|
pad = (GstOggPad *) walk->data;
|
|
thepad = pad->collect.pad;
|
|
|
|
walk = g_slist_next (walk);
|
|
|
|
GST_LOG ("looking at pad %s:%s", GST_DEBUG_PAD_NAME (thepad));
|
|
|
|
/* if the pad has no buffer, we don't care */
|
|
if (pad->buffer == NULL)
|
|
continue;
|
|
|
|
/* now figure out the headers */
|
|
pad->headers = gst_ogg_mux_get_headers (pad);
|
|
}
|
|
|
|
GST_LOG ("creating first headers");
|
|
walk = mux->collect->data;
|
|
while (walk) {
|
|
GstOggPad *pad;
|
|
GstBuffer *buf;
|
|
ogg_packet packet;
|
|
ogg_page page;
|
|
GstPad *thepad;
|
|
|
|
pad = (GstOggPad *) walk->data;
|
|
thepad = pad->collect.pad;
|
|
|
|
walk = walk->next;
|
|
|
|
pad->packetno = 0;
|
|
|
|
GST_LOG ("looping over headers for pad %s:%s", GST_DEBUG_PAD_NAME (thepad));
|
|
|
|
if (pad->headers) {
|
|
buf = GST_BUFFER (pad->headers->data);
|
|
pad->headers = g_list_remove (pad->headers, buf);
|
|
} else {
|
|
buf = pad->buffer;
|
|
gst_buffer_ref (buf);
|
|
}
|
|
|
|
/* create a packet from the buffer */
|
|
packet.packet = GST_BUFFER_DATA (buf);
|
|
packet.bytes = GST_BUFFER_SIZE (buf);
|
|
packet.granulepos = GST_BUFFER_OFFSET_END (buf);
|
|
if (packet.granulepos == -1)
|
|
packet.granulepos = 0;
|
|
/* mark BOS and packet number */
|
|
packet.b_o_s = (pad->packetno == 0);
|
|
packet.packetno = pad->packetno++;
|
|
/* mark EOS */
|
|
packet.e_o_s = 0;
|
|
|
|
/* swap the packet in */
|
|
ogg_stream_packetin (&pad->stream, &packet);
|
|
gst_buffer_unref (buf);
|
|
|
|
GST_LOG ("flushing page with first packet");
|
|
while (ogg_stream_flush (&pad->stream, &page)) {
|
|
GstBuffer *hbuf = gst_ogg_mux_buffer_from_page (mux, &page, FALSE);
|
|
|
|
GST_LOG ("swapped out page");
|
|
hbufs = g_list_append (hbufs, hbuf);
|
|
}
|
|
}
|
|
|
|
GST_LOG ("creating next headers");
|
|
walk = mux->collect->data;
|
|
while (walk) {
|
|
GstOggPad *pad;
|
|
GstPad *thepad;
|
|
|
|
pad = (GstOggPad *) walk->data;
|
|
thepad = pad->collect.pad;
|
|
|
|
walk = walk->next;
|
|
|
|
GST_LOG ("looping over headers for pad %s:%s", GST_DEBUG_PAD_NAME (thepad));
|
|
|
|
hwalk = pad->headers;
|
|
while (hwalk) {
|
|
GstBuffer *buf = GST_BUFFER (hwalk->data);
|
|
ogg_packet packet;
|
|
ogg_page page;
|
|
|
|
hwalk = hwalk->next;
|
|
|
|
/* create a packet from the buffer */
|
|
packet.packet = GST_BUFFER_DATA (buf);
|
|
packet.bytes = GST_BUFFER_SIZE (buf);
|
|
packet.granulepos = GST_BUFFER_OFFSET_END (buf);
|
|
if (packet.granulepos == -1)
|
|
packet.granulepos = 0;
|
|
/* mark BOS and packet number */
|
|
packet.b_o_s = (pad->packetno == 0);
|
|
packet.packetno = pad->packetno++;
|
|
/* mark EOS */
|
|
packet.e_o_s = 0;
|
|
|
|
/* swap the packet in */
|
|
ogg_stream_packetin (&pad->stream, &packet);
|
|
gst_buffer_unref (buf);
|
|
|
|
/* if last header, flush page */
|
|
if (hwalk == NULL) {
|
|
GST_LOG ("flushing page as packet %d is first or last packet",
|
|
pad->packetno);
|
|
while (ogg_stream_flush (&pad->stream, &page)) {
|
|
GstBuffer *hbuf = gst_ogg_mux_buffer_from_page (mux, &page, FALSE);
|
|
|
|
GST_LOG ("swapped out page");
|
|
hbufs = g_list_append (hbufs, hbuf);
|
|
}
|
|
} else {
|
|
GST_LOG ("try to swap out page");
|
|
/* just try to swap out a page then */
|
|
while (ogg_stream_pageout (&pad->stream, &page) > 0) {
|
|
GstBuffer *hbuf = gst_ogg_mux_buffer_from_page (mux, &page, FALSE);
|
|
|
|
GST_LOG ("swapped out page");
|
|
hbufs = g_list_append (hbufs, hbuf);
|
|
}
|
|
}
|
|
}
|
|
g_list_free (pad->headers);
|
|
pad->headers = NULL;
|
|
}
|
|
/* hbufs holds all buffers for the headers now */
|
|
|
|
/* create caps with the buffers */
|
|
caps = gst_pad_get_caps (mux->srcpad);
|
|
if (caps) {
|
|
caps = gst_ogg_mux_set_header_on_caps (caps, hbufs);
|
|
gst_pad_set_caps (mux->srcpad, caps);
|
|
}
|
|
/* and send the buffers */
|
|
hwalk = hbufs;
|
|
while (hwalk) {
|
|
GstBuffer *buf = GST_BUFFER (hwalk->data);
|
|
|
|
hwalk = hwalk->next;
|
|
|
|
if ((ret = gst_pad_push (mux->srcpad, buf)) != GST_FLOW_OK)
|
|
break;
|
|
}
|
|
g_list_free (hbufs);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* this function is called when there is data on all pads.
|
|
*
|
|
* basic idea:
|
|
*
|
|
* 1) find a pad to pull on, this is done by looking at the buffers
|
|
* to decide which one should be muxed first.
|
|
* 2) store the selected pad and keep on pulling until we fill a
|
|
* complete ogg page or the ogg page is filled above the max-delay
|
|
* threshold. This is needed because the ogg spec says that
|
|
* you should fill a complete page with data from the same logical
|
|
* stream. When the page is filled, go back to 1).
|
|
* 3) before filling a packet, read ahead one more buffer to see if this
|
|
* packet is the last of the stream. We need to do this because the ogg
|
|
* spec mandates that the last packet should have the EOS flag set before
|
|
* sending it to ogg.
|
|
*/
|
|
static GstFlowReturn
|
|
gst_ogg_mux_collected (GstCollectPads * pads, GstOggMux * ogg_mux)
|
|
{
|
|
GstOggPad *best;
|
|
gboolean delta_unit;
|
|
GstFlowReturn ret;
|
|
|
|
GST_DEBUG ("collected");
|
|
|
|
best = gst_ogg_mux_queue_pads (ogg_mux);
|
|
if (best == NULL)
|
|
return GST_FLOW_OK;
|
|
|
|
GST_DEBUG ("best pad %p", best);
|
|
|
|
/* we're pulling a pad and there is a better one, see if we need
|
|
* to flush the current page */
|
|
if (ogg_mux->pulling && best &&
|
|
ogg_mux->pulling != best && ogg_mux->pulling->buffer) {
|
|
GstOggPad *pad = ogg_mux->pulling;
|
|
|
|
GstClockTime last_ts =
|
|
GST_BUFFER_TIMESTAMP (pad->buffer) + GST_BUFFER_DURATION (pad->buffer);
|
|
|
|
/* if the next packet in the current page is going to make the page
|
|
* too long, we need to flush */
|
|
if (last_ts > ogg_mux->next_ts + ogg_mux->max_delay) {
|
|
ogg_page page;
|
|
|
|
while (ogg_stream_flush (&pad->stream, &page)) {
|
|
ret = gst_ogg_mux_push_page (ogg_mux, &page, pad->first_delta);
|
|
/* increment the page number counter */
|
|
pad->pageno++;
|
|
/* mark other pages as delta */
|
|
pad->first_delta = TRUE;
|
|
}
|
|
pad->new_page = TRUE;
|
|
ogg_mux->pulling = NULL;
|
|
}
|
|
}
|
|
|
|
/* if we don't know which pad to pull on, use the best one */
|
|
if (ogg_mux->pulling == NULL) {
|
|
ogg_mux->pulling = best;
|
|
/* remember timestamp of first buffer for this new pad */
|
|
if (ogg_mux->pulling != NULL) {
|
|
ogg_mux->next_ts = GST_BUFFER_TIMESTAMP (ogg_mux->pulling->buffer);
|
|
} else {
|
|
/* no pad to pull on, send EOS */
|
|
gst_pad_push_event (ogg_mux->srcpad, gst_event_new (GST_EVENT_EOS));
|
|
return GST_FLOW_WRONG_STATE;
|
|
}
|
|
}
|
|
|
|
if (ogg_mux->need_headers) {
|
|
ret = gst_ogg_mux_send_headers (ogg_mux);
|
|
ogg_mux->need_headers = FALSE;
|
|
}
|
|
|
|
/* we are pulling from a pad, continue to do so until a page
|
|
* has been filled and pushed */
|
|
if (ogg_mux->pulling != NULL) {
|
|
ogg_packet packet;
|
|
ogg_page page;
|
|
GstBuffer *buf, *tmpbuf;
|
|
GstOggPad *pad = ogg_mux->pulling;
|
|
gint64 duration;
|
|
gboolean force_flush;
|
|
|
|
/* now see if we have a buffer */
|
|
buf = pad->buffer;
|
|
|
|
delta_unit = GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
duration = GST_BUFFER_DURATION (buf);
|
|
|
|
/* create a packet from the buffer */
|
|
packet.packet = GST_BUFFER_DATA (buf);
|
|
packet.bytes = GST_BUFFER_SIZE (buf);
|
|
packet.granulepos = GST_BUFFER_OFFSET_END (buf);
|
|
if (packet.granulepos == -1)
|
|
packet.granulepos = 0;
|
|
/* mark BOS and packet number */
|
|
packet.b_o_s = (pad->packetno == 0);
|
|
packet.packetno = pad->packetno++;
|
|
|
|
#if 0
|
|
/* read ahead one more buffer to find EOS */
|
|
tmpbuf = gst_ogg_mux_next_buffer (pad, &interrupt);
|
|
if (interrupt)
|
|
return;
|
|
/* data exhausted on this pad */
|
|
if (tmpbuf == NULL) {
|
|
/* stop pulling from the pad */
|
|
ogg_mux->pulling = NULL;
|
|
}
|
|
/* mark EOS */
|
|
packet.e_o_s = (tmpbuf == NULL ? 1 : 0);
|
|
#else
|
|
packet.e_o_s = 0;
|
|
tmpbuf = NULL;
|
|
#endif
|
|
|
|
/* we flush when we see a new keyframe */
|
|
force_flush = (pad->prev_delta && !delta_unit);
|
|
if (duration != -1) {
|
|
pad->duration += duration;
|
|
/* if page duration exceeds max, flush page */
|
|
if (pad->duration > ogg_mux->max_page_delay) {
|
|
force_flush = TRUE;
|
|
pad->duration = 0;
|
|
}
|
|
}
|
|
|
|
/* force flush */
|
|
if (force_flush) {
|
|
while (ogg_stream_flush (&pad->stream, &page)) {
|
|
ret = gst_ogg_mux_push_page (ogg_mux, &page, pad->first_delta);
|
|
/* increment the page number counter */
|
|
pad->pageno++;
|
|
/* mark other pages as delta */
|
|
pad->first_delta = TRUE;
|
|
}
|
|
pad->new_page = TRUE;
|
|
}
|
|
|
|
/* if this is the first packet of a new page figure out the delta flag */
|
|
if (pad->new_page) {
|
|
if (delta_unit) {
|
|
/* This page is a delta frame */
|
|
if (ogg_mux->delta_pad == NULL) {
|
|
/* we got a delta unit on this pad */
|
|
ogg_mux->delta_pad = pad;
|
|
}
|
|
/* mark the page as delta */
|
|
pad->first_delta = TRUE;
|
|
} else {
|
|
/* got a keyframe */
|
|
if (ogg_mux->delta_pad == pad) {
|
|
/* if we get it on the pad with deltaunits,
|
|
* we mark the page as non delta */
|
|
pad->first_delta = FALSE;
|
|
} else if (ogg_mux->delta_pad != NULL) {
|
|
/* if there are pads with delta frames, we
|
|
* must mark this one as delta */
|
|
pad->first_delta = TRUE;
|
|
} else {
|
|
pad->first_delta = FALSE;
|
|
}
|
|
}
|
|
pad->new_page = FALSE;
|
|
}
|
|
|
|
/* save key unit to track delta->key unit transitions */
|
|
pad->prev_delta = delta_unit;
|
|
|
|
/* swap the packet in */
|
|
if (packet.e_o_s == 1)
|
|
GST_DEBUG_OBJECT (pad, "swapping in EOS packet");
|
|
if (packet.b_o_s == 1)
|
|
GST_DEBUG_OBJECT (pad, "swapping in BOS packet");
|
|
|
|
ogg_stream_packetin (&pad->stream, &packet);
|
|
|
|
/* don't need the old buffer anymore */
|
|
gst_buffer_unref (pad->buffer);
|
|
/* store new readahead buffer */
|
|
pad->buffer = tmpbuf;
|
|
|
|
/* let ogg write out the pages now. The packet we got could end
|
|
* up in more than one page so we need to write them all */
|
|
if (ogg_stream_pageout (&pad->stream, &page) > 0) {
|
|
/* push the page */
|
|
ret = gst_ogg_mux_push_page (ogg_mux, &page, pad->first_delta);
|
|
pad->pageno++;
|
|
/* mark next pages as delta */
|
|
pad->first_delta = TRUE;
|
|
|
|
/* use an inner loop her to flush the remaining pages and
|
|
* mark them as delta frames as well */
|
|
while (ogg_stream_pageout (&pad->stream, &page) > 0) {
|
|
/* we have a complete page now, we can push the page
|
|
* and make sure to pull on a new pad the next time around */
|
|
ret = gst_ogg_mux_push_page (ogg_mux, &page, pad->first_delta);
|
|
/* increment the page number counter */
|
|
pad->pageno++;
|
|
}
|
|
/* need a new page as well */
|
|
pad->new_page = TRUE;
|
|
pad->duration = 0;
|
|
/* we're done pulling on this pad, make sure to choose a new
|
|
* pad for pulling in the next iteration */
|
|
ogg_mux->pulling = NULL;
|
|
}
|
|
}
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static void
|
|
gst_ogg_mux_get_property (GObject * object,
|
|
guint prop_id, GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstOggMux *ogg_mux;
|
|
|
|
ogg_mux = GST_OGG_MUX (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_MAX_DELAY:
|
|
g_value_set_uint64 (value, ogg_mux->max_delay);
|
|
break;
|
|
case ARG_MAX_PAGE_DELAY:
|
|
g_value_set_uint64 (value, ogg_mux->max_page_delay);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_ogg_mux_set_property (GObject * object,
|
|
guint prop_id, const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstOggMux *ogg_mux;
|
|
|
|
ogg_mux = GST_OGG_MUX (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_MAX_DELAY:
|
|
ogg_mux->max_delay = g_value_get_uint64 (value);
|
|
break;
|
|
case ARG_MAX_PAGE_DELAY:
|
|
ogg_mux->max_page_delay = g_value_get_uint64 (value);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static GstElementStateReturn
|
|
gst_ogg_mux_change_state (GstElement * element)
|
|
{
|
|
GstOggMux *ogg_mux;
|
|
gint transition;
|
|
GstElementStateReturn ret;
|
|
|
|
transition = GST_STATE_TRANSITION (element);
|
|
ogg_mux = GST_OGG_MUX (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_NULL_TO_READY:
|
|
case GST_STATE_READY_TO_PAUSED:
|
|
ogg_mux->next_ts = 0;
|
|
ogg_mux->offset = 0;
|
|
ogg_mux->pulling = NULL;
|
|
gst_collectpads_start (ogg_mux->collect);
|
|
break;
|
|
case GST_STATE_PAUSED_TO_PLAYING:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_PLAYING_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_PAUSED_TO_READY:
|
|
gst_collectpads_stop (ogg_mux->collect);
|
|
break;
|
|
case GST_STATE_READY_TO_NULL:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
gboolean
|
|
gst_ogg_mux_plugin_init (GstPlugin * plugin)
|
|
{
|
|
GST_DEBUG_CATEGORY_INIT (gst_ogg_mux_debug, "oggmux", 0, "ogg muxer");
|
|
|
|
return gst_element_register (plugin, "oggmux", GST_RANK_NONE,
|
|
GST_TYPE_OGG_MUX);
|
|
}
|