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The majority of the examples doe not use -0.10 and this will also help us to maintain the docs.
1930 lines
62 KiB
C
1930 lines
62 KiB
C
/* AVI muxer plugin for GStreamer
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* Copyright (C) 2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* (C) 2006 Mark Nauwelaerts <manauw@skynet.be>
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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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* - the old avimuxer (by Wim Taymans)
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* - xawtv's aviwriter (by Gerd Knorr)
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* - mjpegtools' avilib (by Rainer Johanni)
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* - openDML large-AVI docs
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*/
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/**
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* SECTION:element-avimux
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*
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* Muxes raw or compressed audio and/or video streams into an AVI file.
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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,width=320,height=240,framerate=(fraction)25/1' \
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* ! queue ! mux. \
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* audiotestsrc num-buffers=440 ! audioconvert \
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* ! 'audio/x-raw-int,rate=44100,channels=2' ! queue ! mux. \
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* avimux name=mux ! filesink location=test.avi
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* ]| This will create an .AVI file containing an uncompressed video stream
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* with a test picture and an uncompressed audio stream containing a
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* test sound.
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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,width=320,height=240,framerate=(fraction)25/1' \
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* ! xvidenc ! queue ! mux. \
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* audiotestsrc num-buffers=440 ! audioconvert ! 'audio/x-raw-int,rate=44100,channels=2' \
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* ! lame ! queue ! mux. \
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* avimux name=mux ! filesink location=test.avi
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* ]| This will create an .AVI file containing the same test video and sound
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* as above, only that both streams will be compressed this time. This will
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* only work if you have the necessary encoder elements installed of course.
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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 "gst/gst-i18n-plugin.h"
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#include <stdlib.h>
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#include <string.h>
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#include <gst/video/video.h>
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#include "gstavimux.h"
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GST_DEBUG_CATEGORY_STATIC (avimux_debug);
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#define GST_CAT_DEFAULT avimux_debug
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enum
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{
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ARG_0,
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ARG_BIGFILE
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};
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#define DEFAULT_BIGFILE TRUE
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static const GstElementDetails gst_avi_mux_details =
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GST_ELEMENT_DETAILS ("Avi muxer",
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"Codec/Muxer",
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"Muxes audio and video into an avi stream",
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"Ronald Bultje <rbultje@ronald.bitfreak.net>");
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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-msvideo")
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);
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static GstStaticPadTemplate video_sink_factory =
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GST_STATIC_PAD_TEMPLATE ("video_%d",
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GST_PAD_SINK,
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GST_PAD_REQUEST,
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GST_STATIC_CAPS ("video/x-raw-yuv, "
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"format = (fourcc) { YUY2, I420 }, "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], "
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"framerate = (fraction) [ 0, MAX ]; "
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"image/jpeg, "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], "
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"framerate = (fraction) [ 0, MAX ]; "
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"video/x-divx, "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], "
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"framerate = (fraction) [ 0, MAX ], "
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"divxversion = (int) [ 3, 5 ]; "
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"video/x-xvid, "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], "
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"framerate = (fraction) [ 0, MAX ]; "
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"video/x-3ivx, "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], "
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"framerate = (fraction) [ 0, MAX ]; "
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"video/x-msmpeg, "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], "
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"framerate = (fraction) [ 0, MAX ], "
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"msmpegversion = (int) [ 41, 43 ]; "
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"video/mpeg, "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], "
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"framerate = (fraction) [ 0, MAX ], "
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"mpegversion = (int) { 1, 2, 4}, "
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"systemstream = (boolean) FALSE; "
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"video/x-h263, "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], "
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"framerate = (fraction) [ 0, MAX ]; "
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"video/x-h264, "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], "
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"framerate = (fraction) [ 0, MAX ]; "
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"video/x-dv, "
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"width = (int) 720, "
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"height = (int) { 576, 480 }, "
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"framerate = (fraction) [ 0, MAX ], "
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"systemstream = (boolean) FALSE; "
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"video/x-huffyuv, "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], " "framerate = (fraction) [ 0, MAX ];"
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"video/x-dirac, "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], " "framerate = (fraction) [ 0, MAX ]")
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);
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static GstStaticPadTemplate audio_sink_factory =
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GST_STATIC_PAD_TEMPLATE ("audio_%d",
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GST_PAD_SINK,
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GST_PAD_REQUEST,
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GST_STATIC_CAPS ("audio/x-raw-int, "
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"endianness = (int) LITTLE_ENDIAN, "
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"signed = (boolean) { TRUE, FALSE }, "
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"width = (int) { 8, 16 }, "
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"depth = (int) { 8, 16 }, "
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"rate = (int) [ 1000, 96000 ], "
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"channels = (int) [ 1, 2 ]; "
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"audio/mpeg, "
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"mpegversion = (int) 1, "
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"layer = (int) [ 1, 3 ], "
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"rate = (int) [ 1000, 96000 ], " "channels = (int) [ 1, 2 ]; "
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"audio/mpeg, "
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"mpegversion = (int) 4, "
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"rate = (int) [ 1000, 96000 ], " "channels = (int) [ 1, 2 ]; "
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/*#if 0 VC6 doesn't support #if here ...
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"audio/x-vorbis, "
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"rate = (int) [ 1000, 96000 ], " "channels = (int) [ 1, 2 ]; "
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#endif*/
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"audio/x-ac3, "
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"rate = (int) [ 1000, 96000 ], " "channels = (int) [ 1, 2 ]; "
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"audio/x-alaw, "
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"rate = (int) [ 1000, 48000 ], " "channels = (int) [ 1, 2 ]; "
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"audio/x-mulaw, "
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"rate = (int) [ 1000, 48000 ], " "channels = (int) [ 1, 2 ]; ")
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);
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static void gst_avi_mux_base_init (gpointer g_class);
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static void gst_avi_mux_class_init (GstAviMuxClass * klass);
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static void gst_avi_mux_init (GstAviMux * avimux);
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static void gst_avi_mux_pad_reset (GstAviPad * avipad, gboolean free);
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static GstFlowReturn gst_avi_mux_collect_pads (GstCollectPads * pads,
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GstAviMux * avimux);
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static gboolean gst_avi_mux_handle_event (GstPad * pad, GstEvent * event);
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static GstPad *gst_avi_mux_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * name);
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static void gst_avi_mux_release_pad (GstElement * element, GstPad * pad);
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static void gst_avi_mux_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec);
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static void gst_avi_mux_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec);
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static GstStateChangeReturn gst_avi_mux_change_state (GstElement * element,
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GstStateChange transition);
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static GstElementClass *parent_class = NULL;
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GType
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gst_avi_mux_get_type (void)
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{
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static GType avimux_type = 0;
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if (!avimux_type) {
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static const GTypeInfo avimux_info = {
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sizeof (GstAviMuxClass),
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gst_avi_mux_base_init,
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NULL,
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(GClassInitFunc) gst_avi_mux_class_init,
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NULL,
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NULL,
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sizeof (GstAviMux),
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0,
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(GInstanceInitFunc) gst_avi_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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avimux_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstAviMux", &avimux_info, 0);
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g_type_add_interface_static (avimux_type, GST_TYPE_TAG_SETTER,
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&tag_setter_info);
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}
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return avimux_type;
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}
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static void
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gst_avi_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 (element_class, &gst_avi_mux_details);
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GST_DEBUG_CATEGORY_INIT (avimux_debug, "avimux", 0, "Muxer for AVI streams");
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}
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static void
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gst_avi_mux_finalize (GObject * object)
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{
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GstAviMux *mux = GST_AVI_MUX (object);
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GSList *node;
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/* completely free each sinkpad */
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node = mux->sinkpads;
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while (node) {
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GstAviPad *avipad = (GstAviPad *) node->data;
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node = node->next;
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gst_avi_mux_pad_reset (avipad, TRUE);
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g_free (avipad);
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}
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g_slist_free (mux->sinkpads);
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mux->sinkpads = NULL;
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g_free (mux->idx);
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mux->idx = NULL;
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gst_object_unref (mux->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_avi_mux_class_init (GstAviMuxClass * 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_avi_mux_get_property;
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gobject_class->set_property = gst_avi_mux_set_property;
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gobject_class->finalize = gst_avi_mux_finalize;
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g_object_class_install_property (gobject_class, ARG_BIGFILE,
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g_param_spec_boolean ("bigfile", "Bigfile Support (>2GB)",
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"Support for openDML-2.0 (big) AVI files", DEFAULT_BIGFILE,
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G_PARAM_READWRITE));
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gstelement_class->request_new_pad =
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GST_DEBUG_FUNCPTR (gst_avi_mux_request_new_pad);
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gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_avi_mux_release_pad);
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gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_avi_mux_change_state);
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}
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/* reset pad to initial state
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* free - if true, release all, not only stream related, data */
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static void
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gst_avi_mux_pad_reset (GstAviPad * avipad, gboolean free)
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{
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/* generic part */
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memset (&(avipad->hdr), 0, sizeof (gst_riff_strh));
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memset (&(avipad->idx[0]), 0, sizeof (avipad->idx));
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if (free) {
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g_free (avipad->tag);
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avipad->tag = NULL;
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g_free (avipad->idx_tag);
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avipad->idx_tag = NULL;
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}
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if (avipad->is_video) {
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GstAviVideoPad *vidpad = (GstAviVideoPad *) avipad;
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avipad->hdr.type = GST_MAKE_FOURCC ('v', 'i', 'd', 's');
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if (vidpad->vids_codec_data) {
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gst_buffer_unref (vidpad->vids_codec_data);
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vidpad->vids_codec_data = NULL;
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}
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memset (&(vidpad->vids), 0, sizeof (gst_riff_strf_vids));
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memset (&(vidpad->vprp), 0, sizeof (gst_riff_vprp));
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} else {
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GstAviAudioPad *audpad = (GstAviAudioPad *) avipad;
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avipad->hdr.type = GST_MAKE_FOURCC ('a', 'u', 'd', 's');
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if (audpad->auds_codec_data) {
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gst_buffer_unref (audpad->auds_codec_data);
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audpad->auds_codec_data = NULL;
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}
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memset (&(audpad->auds), 0, sizeof (gst_riff_strf_auds));
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}
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}
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static void
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gst_avi_mux_reset (GstAviMux * avimux)
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{
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GSList *node, *newlist = NULL;
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/* free and reset each sinkpad */
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node = avimux->sinkpads;
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while (node) {
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GstAviPad *avipad = (GstAviPad *) node->data;
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node = node->next;
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gst_avi_mux_pad_reset (avipad, FALSE);
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/* if this pad has collectdata, keep it, otherwise dump it completely */
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if (avipad->collect)
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newlist = g_slist_append (newlist, avipad);
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else {
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gst_avi_mux_pad_reset (avipad, TRUE);
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g_free (avipad);
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}
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}
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/* free the old list of sinkpads, only keep the real collecting ones */
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g_slist_free (avimux->sinkpads);
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avimux->sinkpads = newlist;
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/* avi data */
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avimux->num_frames = 0;
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memset (&(avimux->avi_hdr), 0, sizeof (gst_riff_avih));
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avimux->avi_hdr.max_bps = 10000000;
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avimux->codec_data_size = 0;
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if (avimux->tags_snap) {
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gst_tag_list_free (avimux->tags_snap);
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avimux->tags_snap = NULL;
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}
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g_free (avimux->idx);
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avimux->idx = NULL;
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/* state info */
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avimux->write_header = TRUE;
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/* tags */
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gst_tag_setter_reset_tags (GST_TAG_SETTER (avimux));
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}
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static void
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gst_avi_mux_init (GstAviMux * avimux)
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{
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avimux->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
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gst_pad_use_fixed_caps (avimux->srcpad);
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gst_element_add_pad (GST_ELEMENT (avimux), avimux->srcpad);
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/* property */
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avimux->enable_large_avi = DEFAULT_BIGFILE;
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avimux->collect = gst_collect_pads_new ();
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gst_collect_pads_set_function (avimux->collect,
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(GstCollectPadsFunction) (GST_DEBUG_FUNCPTR (gst_avi_mux_collect_pads)),
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avimux);
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/* set to clean state */
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gst_avi_mux_reset (avimux);
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}
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static gboolean
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gst_avi_mux_vidsink_set_caps (GstPad * pad, GstCaps * vscaps)
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{
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GstAviMux *avimux;
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GstAviVideoPad *avipad;
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GstAviCollectData *collect_pad;
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GstStructure *structure;
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const gchar *mimetype;
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const GValue *fps, *par;
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const GValue *codec_data;
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gint width, height;
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gint par_n, par_d;
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avimux = GST_AVI_MUX (gst_pad_get_parent (pad));
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/* find stream data */
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collect_pad = (GstAviCollectData *) gst_pad_get_element_private (pad);
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g_assert (collect_pad);
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avipad = (GstAviVideoPad *) collect_pad->avipad;
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g_assert (avipad);
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g_assert (avipad->parent.is_video);
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g_assert (avipad->parent.hdr.type == GST_MAKE_FOURCC ('v', 'i', 'd', 's'));
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GST_DEBUG_OBJECT (avimux, "%s:%s, caps=%" GST_PTR_FORMAT,
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GST_DEBUG_PAD_NAME (pad), vscaps);
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structure = gst_caps_get_structure (vscaps, 0);
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mimetype = gst_structure_get_name (structure);
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/* global */
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avipad->vids.size = sizeof (gst_riff_strf_vids);
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avipad->vids.planes = 1;
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if (!gst_structure_get_int (structure, "width", &width) ||
|
|
!gst_structure_get_int (structure, "height", &height)) {
|
|
goto refuse_caps;
|
|
}
|
|
|
|
avipad->vids.width = width;
|
|
avipad->vids.height = height;
|
|
|
|
fps = gst_structure_get_value (structure, "framerate");
|
|
if (fps == NULL || !GST_VALUE_HOLDS_FRACTION (fps))
|
|
goto refuse_caps;
|
|
|
|
avipad->parent.hdr.rate = gst_value_get_fraction_numerator (fps);
|
|
avipad->parent.hdr.scale = gst_value_get_fraction_denominator (fps);
|
|
|
|
/* (pixel) aspect ratio data, if any */
|
|
par = gst_structure_get_value (structure, "pixel-aspect-ratio");
|
|
/* only use video properties header if there is non-trivial aspect info */
|
|
if (par && GST_VALUE_HOLDS_FRACTION (par) &&
|
|
((par_n = gst_value_get_fraction_numerator (par)) !=
|
|
(par_d = gst_value_get_fraction_denominator (par)))) {
|
|
GValue to_ratio = { 0, };
|
|
guint ratio_n, ratio_d;
|
|
|
|
/* some fraction voodoo to obtain simplest possible ratio */
|
|
g_value_init (&to_ratio, GST_TYPE_FRACTION);
|
|
gst_value_set_fraction (&to_ratio, width * par_n, height * par_d);
|
|
ratio_n = gst_value_get_fraction_numerator (&to_ratio);
|
|
ratio_d = gst_value_get_fraction_denominator (&to_ratio);
|
|
GST_DEBUG_OBJECT (avimux, "generating vprp data with aspect ratio %d/%d",
|
|
ratio_n, ratio_d);
|
|
/* simply fill in */
|
|
avipad->vprp.vert_rate = avipad->parent.hdr.rate / avipad->parent.hdr.scale;
|
|
avipad->vprp.hor_t_total = width;
|
|
avipad->vprp.vert_lines = height;
|
|
avipad->vprp.aspect = (ratio_n) << 16 | (ratio_d & 0xffff);
|
|
avipad->vprp.width = width;
|
|
avipad->vprp.height = height;
|
|
avipad->vprp.fields = 1;
|
|
avipad->vprp.field_info[0].compressed_bm_height = height;
|
|
avipad->vprp.field_info[0].compressed_bm_width = width;
|
|
avipad->vprp.field_info[0].valid_bm_height = height;
|
|
avipad->vprp.field_info[0].valid_bm_width = width;
|
|
}
|
|
|
|
/* codec initialization data, if any */
|
|
codec_data = gst_structure_get_value (structure, "codec_data");
|
|
if (codec_data) {
|
|
avipad->vids_codec_data = gst_value_get_buffer (codec_data);
|
|
gst_buffer_ref (avipad->vids_codec_data);
|
|
/* keep global track of size */
|
|
avimux->codec_data_size += GST_BUFFER_SIZE (avipad->vids_codec_data);
|
|
}
|
|
|
|
if (!strcmp (mimetype, "video/x-raw-yuv")) {
|
|
guint32 format;
|
|
|
|
gst_structure_get_fourcc (structure, "format", &format);
|
|
avipad->vids.compression = format;
|
|
switch (format) {
|
|
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
|
|
avipad->vids.bit_cnt = 16;
|
|
break;
|
|
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
|
|
avipad->vids.bit_cnt = 12;
|
|
break;
|
|
}
|
|
} else {
|
|
avipad->vids.bit_cnt = 24;
|
|
avipad->vids.compression = 0;
|
|
|
|
/* find format */
|
|
if (!strcmp (mimetype, "video/x-huffyuv")) {
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('H', 'F', 'Y', 'U');
|
|
} else if (!strcmp (mimetype, "image/jpeg")) {
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('M', 'J', 'P', 'G');
|
|
} else if (!strcmp (mimetype, "video/x-divx")) {
|
|
gint divxversion;
|
|
|
|
gst_structure_get_int (structure, "divxversion", &divxversion);
|
|
switch (divxversion) {
|
|
case 3:
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('D', 'I', 'V', '3');
|
|
break;
|
|
case 4:
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('D', 'I', 'V', 'X');
|
|
break;
|
|
case 5:
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('D', 'X', '5', '0');
|
|
break;
|
|
}
|
|
} else if (!strcmp (mimetype, "video/x-xvid")) {
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('X', 'V', 'I', 'D');
|
|
} else if (!strcmp (mimetype, "video/x-3ivx")) {
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('3', 'I', 'V', '2');
|
|
} else if (gst_structure_has_name (structure, "video/x-msmpeg")) {
|
|
gint msmpegversion;
|
|
|
|
gst_structure_get_int (structure, "msmpegversion", &msmpegversion);
|
|
switch (msmpegversion) {
|
|
case 41:
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', 'G', '4');
|
|
break;
|
|
case 42:
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', '4', '2');
|
|
break;
|
|
case 43:
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', '4', '3');
|
|
break;
|
|
default:
|
|
GST_INFO ("unhandled msmpegversion : %d, fall back to fourcc=MPEG",
|
|
msmpegversion);
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', 'E', 'G');
|
|
break;
|
|
}
|
|
} else if (!strcmp (mimetype, "video/x-dv")) {
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('D', 'V', 'S', 'D');
|
|
} else if (!strcmp (mimetype, "video/x-h263")) {
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('H', '2', '6', '3');
|
|
} else if (!strcmp (mimetype, "video/x-h264")) {
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('H', '2', '6', '4');
|
|
} else if (!strcmp (mimetype, "video/mpeg")) {
|
|
gint mpegversion;
|
|
|
|
gst_structure_get_int (structure, "mpegversion", &mpegversion);
|
|
|
|
switch (mpegversion) {
|
|
case 2:
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', 'G', '2');
|
|
break;
|
|
case 4:
|
|
/* mplayer/ffmpeg might not work with DIVX, but with FMP4 */
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('D', 'I', 'V', 'X');
|
|
break;
|
|
default:
|
|
GST_INFO ("unhandled mpegversion : %d, fall back to fourcc=MPEG",
|
|
mpegversion);
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('M', 'P', 'E', 'G');
|
|
break;
|
|
}
|
|
} else if (!strcmp (mimetype, "video/x-dirac")) {
|
|
avipad->vids.compression = GST_MAKE_FOURCC ('d', 'r', 'a', 'c');
|
|
}
|
|
|
|
if (!avipad->vids.compression)
|
|
goto refuse_caps;
|
|
}
|
|
|
|
avipad->parent.hdr.fcc_handler = avipad->vids.compression;
|
|
avipad->vids.image_size = avipad->vids.height * avipad->vids.width;
|
|
/* hm, maybe why avi only handles one stream well ... */
|
|
avimux->avi_hdr.width = avipad->vids.width;
|
|
avimux->avi_hdr.height = avipad->vids.height;
|
|
avimux->avi_hdr.us_frame = 1000000. * avipad->parent.hdr.scale /
|
|
avipad->parent.hdr.rate;
|
|
|
|
gst_object_unref (avimux);
|
|
return TRUE;
|
|
|
|
refuse_caps:
|
|
{
|
|
GST_WARNING_OBJECT (avimux, "refused caps %" GST_PTR_FORMAT, vscaps);
|
|
gst_object_unref (avimux);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_avi_mux_audsink_set_caps (GstPad * pad, GstCaps * vscaps)
|
|
{
|
|
GstAviMux *avimux;
|
|
GstAviAudioPad *avipad;
|
|
GstAviCollectData *collect_pad;
|
|
GstStructure *structure;
|
|
const gchar *mimetype;
|
|
const GValue *codec_data;
|
|
gint channels, rate;
|
|
|
|
avimux = GST_AVI_MUX (gst_pad_get_parent (pad));
|
|
|
|
/* find stream data */
|
|
collect_pad = (GstAviCollectData *) gst_pad_get_element_private (pad);
|
|
g_assert (collect_pad);
|
|
avipad = (GstAviAudioPad *) collect_pad->avipad;
|
|
g_assert (avipad);
|
|
g_assert (!avipad->parent.is_video);
|
|
g_assert (avipad->parent.hdr.type == GST_MAKE_FOURCC ('a', 'u', 'd', 's'));
|
|
|
|
GST_DEBUG_OBJECT (avimux, "%s:%s, caps=%" GST_PTR_FORMAT,
|
|
GST_DEBUG_PAD_NAME (pad), vscaps);
|
|
|
|
structure = gst_caps_get_structure (vscaps, 0);
|
|
mimetype = gst_structure_get_name (structure);
|
|
|
|
/* we want these for all */
|
|
if (!gst_structure_get_int (structure, "channels", &channels) ||
|
|
!gst_structure_get_int (structure, "rate", &rate)) {
|
|
goto refuse_caps;
|
|
}
|
|
|
|
avipad->auds.channels = channels;
|
|
avipad->auds.rate = rate;
|
|
|
|
/* codec initialization data, if any */
|
|
codec_data = gst_structure_get_value (structure, "codec_data");
|
|
if (codec_data) {
|
|
avipad->auds_codec_data = gst_value_get_buffer (codec_data);
|
|
gst_buffer_ref (avipad->auds_codec_data);
|
|
/* keep global track of size */
|
|
avimux->codec_data_size += GST_BUFFER_SIZE (avipad->auds_codec_data);
|
|
}
|
|
|
|
if (!strcmp (mimetype, "audio/x-raw-int")) {
|
|
gint width, depth;
|
|
gboolean signedness;
|
|
|
|
avipad->auds.format = GST_RIFF_WAVE_FORMAT_PCM;
|
|
|
|
if (!gst_structure_get_int (structure, "width", &width) ||
|
|
!gst_structure_get_int (structure, "depth", &depth) ||
|
|
!gst_structure_get_boolean (structure, "signed", &signedness)) {
|
|
GST_DEBUG_OBJECT (avimux,
|
|
"broken caps, width/depth/signed field missing");
|
|
goto refuse_caps;
|
|
}
|
|
|
|
/* no clear place to put different values for these while keeping to spec */
|
|
if (width != depth) {
|
|
GST_DEBUG_OBJECT (avimux, "width must be same as depth!");
|
|
goto refuse_caps;
|
|
}
|
|
|
|
/* because that's the way the caps will be recreated from riff data */
|
|
if ((width == 8 && signedness) || (width == 16 && !signedness)) {
|
|
GST_DEBUG_OBJECT (avimux,
|
|
"8-bit PCM must be unsigned, 16-bit PCM signed");
|
|
goto refuse_caps;
|
|
}
|
|
|
|
avipad->auds.blockalign = width;
|
|
avipad->auds.size = (width == 8) ? 8 : depth;
|
|
|
|
/* set some more info straight */
|
|
avipad->auds.blockalign /= 8;
|
|
avipad->auds.blockalign *= avipad->auds.channels;
|
|
avipad->auds.av_bps = avipad->auds.blockalign * avipad->auds.rate;
|
|
} else {
|
|
avipad->auds.format = 0;
|
|
/* set some defaults */
|
|
avipad->auds.blockalign = 1;
|
|
avipad->auds.av_bps = 0;
|
|
avipad->auds.size = 16;
|
|
|
|
if (!strcmp (mimetype, "audio/mpeg")) {
|
|
gint mpegversion;
|
|
|
|
gst_structure_get_int (structure, "mpegversion", &mpegversion);
|
|
switch (mpegversion) {
|
|
case 1:{
|
|
gint layer = 3;
|
|
|
|
gst_structure_get_int (structure, "layer", &layer);
|
|
switch (layer) {
|
|
case 3:
|
|
avipad->auds.format = GST_RIFF_WAVE_FORMAT_MPEGL3;
|
|
break;
|
|
case 1:
|
|
case 2:
|
|
avipad->auds.format = GST_RIFF_WAVE_FORMAT_MPEGL12;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case 4:
|
|
GST_WARNING ("AAC");
|
|
avipad->auds.format = GST_RIFF_WAVE_FORMAT_AAC;
|
|
break;
|
|
}
|
|
} else if (!strcmp (mimetype, "audio/x-vorbis")) {
|
|
avipad->auds.format = GST_RIFF_WAVE_FORMAT_VORBIS3;
|
|
} else if (!strcmp (mimetype, "audio/x-ac3")) {
|
|
avipad->auds.format = GST_RIFF_WAVE_FORMAT_A52;
|
|
} else if (!strcmp (mimetype, "audio/x-alaw")) {
|
|
avipad->auds.format = GST_RIFF_WAVE_FORMAT_ALAW;
|
|
avipad->auds.size = 8;
|
|
avipad->auds.blockalign = avipad->auds.channels;
|
|
avipad->auds.av_bps = avipad->auds.blockalign * avipad->auds.rate;
|
|
} else if (!strcmp (mimetype, "audio/x-mulaw")) {
|
|
avipad->auds.format = GST_RIFF_WAVE_FORMAT_MULAW;
|
|
avipad->auds.size = 8;
|
|
avipad->auds.blockalign = avipad->auds.channels;
|
|
avipad->auds.av_bps = avipad->auds.blockalign * avipad->auds.rate;
|
|
}
|
|
}
|
|
|
|
if (!avipad->auds.format)
|
|
goto refuse_caps;
|
|
|
|
/* by spec, hdr.rate is av_bps related, is calculated that way in stop_file,
|
|
* and reduces to sample rate in PCM like cases */
|
|
avipad->parent.hdr.rate = avipad->auds.av_bps / avipad->auds.blockalign;
|
|
avipad->parent.hdr.samplesize = avipad->auds.blockalign;
|
|
avipad->parent.hdr.scale = 1;
|
|
|
|
gst_object_unref (avimux);
|
|
return TRUE;
|
|
|
|
refuse_caps:
|
|
{
|
|
GST_WARNING_OBJECT (avimux, "refused caps %" GST_PTR_FORMAT, vscaps);
|
|
gst_object_unref (avimux);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
|
|
static GstPad *
|
|
gst_avi_mux_request_new_pad (GstElement * element,
|
|
GstPadTemplate * templ, const gchar * req_name)
|
|
{
|
|
GstAviMux *avimux;
|
|
GstPad *newpad;
|
|
GstAviPad *avipad;
|
|
GstElementClass *klass;
|
|
|
|
g_return_val_if_fail (templ != NULL, NULL);
|
|
|
|
if (templ->direction != GST_PAD_SINK)
|
|
goto wrong_direction;
|
|
|
|
g_return_val_if_fail (GST_IS_AVI_MUX (element), NULL);
|
|
avimux = GST_AVI_MUX (element);
|
|
|
|
if (!avimux->write_header)
|
|
goto too_late;
|
|
|
|
klass = GST_ELEMENT_GET_CLASS (element);
|
|
|
|
if (templ == gst_element_class_get_pad_template (klass, "audio_%d")) {
|
|
gchar *name;
|
|
|
|
/* setup pad */
|
|
name = g_strdup_printf ("audio_%02d", avimux->audio_pads);
|
|
GST_DEBUG_OBJECT (avimux, "adding new pad: %s", name);
|
|
newpad = gst_pad_new_from_template (templ, name);
|
|
g_free (name);
|
|
gst_pad_set_setcaps_function (newpad,
|
|
GST_DEBUG_FUNCPTR (gst_avi_mux_audsink_set_caps));
|
|
|
|
/* init pad specific data */
|
|
avipad = g_malloc0 (sizeof (GstAviAudioPad));
|
|
avipad->is_video = FALSE;
|
|
avipad->hdr.type = GST_MAKE_FOURCC ('a', 'u', 'd', 's');
|
|
avimux->audio_pads++;
|
|
/* audio goes last */
|
|
avimux->sinkpads = g_slist_append (avimux->sinkpads, avipad);
|
|
} else if (templ == gst_element_class_get_pad_template (klass, "video_%d")) {
|
|
/* though streams are pretty generic and relatively self-contained,
|
|
* some video info goes in a single avi header -and therefore mux struct-
|
|
* so video restricted to one stream */
|
|
if (avimux->video_pads > 0)
|
|
return NULL;
|
|
/* setup pad */
|
|
GST_DEBUG_OBJECT (avimux, "adding new pad: video_00");
|
|
newpad = gst_pad_new_from_template (templ, "video_00");
|
|
gst_pad_set_setcaps_function (newpad,
|
|
GST_DEBUG_FUNCPTR (gst_avi_mux_vidsink_set_caps));
|
|
avipad = g_malloc0 (sizeof (GstAviVideoPad));
|
|
|
|
/* init pad specific data */
|
|
avipad->is_video = TRUE;
|
|
avipad->hdr.type = GST_MAKE_FOURCC ('v', 'i', 'd', 's');
|
|
avimux->video_pads++;
|
|
/* video goes first */
|
|
avimux->sinkpads = g_slist_prepend (avimux->sinkpads, avipad);
|
|
} else
|
|
goto wrong_template;
|
|
|
|
avipad->collect = gst_collect_pads_add_pad (avimux->collect,
|
|
newpad, sizeof (GstAviCollectData));
|
|
((GstAviCollectData *) (avipad->collect))->avipad = avipad;
|
|
/* 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 */
|
|
avimux->collect_event = (GstPadEventFunction) GST_PAD_EVENTFUNC (newpad);
|
|
gst_pad_set_event_function (newpad,
|
|
GST_DEBUG_FUNCPTR (gst_avi_mux_handle_event));
|
|
|
|
gst_element_add_pad (element, newpad);
|
|
|
|
return newpad;
|
|
|
|
/* ERRORS */
|
|
wrong_direction:
|
|
{
|
|
g_warning ("avimux: request pad that is not a SINK pad\n");
|
|
return NULL;
|
|
}
|
|
too_late:
|
|
{
|
|
g_warning ("avimux: request pad cannot be added after streaming started\n");
|
|
return NULL;
|
|
}
|
|
wrong_template:
|
|
{
|
|
g_warning ("avimuxx: this is not our template!\n");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_avi_mux_release_pad (GstElement * element, GstPad * pad)
|
|
{
|
|
GstAviMux *avimux = GST_AVI_MUX (element);
|
|
GSList *node;
|
|
|
|
node = avimux->sinkpads;
|
|
while (node) {
|
|
GstAviPad *avipad = (GstAviPad *) node->data;
|
|
|
|
if (avipad->collect->pad == pad) {
|
|
/* pad count should not be adjusted,
|
|
* as it also represent number of streams present */
|
|
avipad->collect = NULL;
|
|
GST_DEBUG_OBJECT (avimux, "removed pad '%s'", GST_PAD_NAME (pad));
|
|
gst_collect_pads_remove_pad (avimux->collect, pad);
|
|
gst_element_remove_pad (element, pad);
|
|
/* if not started yet, we can remove any sign this pad ever existed */
|
|
/* in this case _start will take care of the real pad count */
|
|
if (avimux->write_header) {
|
|
avimux->sinkpads = g_slist_remove (avimux->sinkpads, avipad);
|
|
gst_avi_mux_pad_reset (avipad, TRUE);
|
|
g_free (avipad);
|
|
}
|
|
return;
|
|
}
|
|
|
|
node = node->next;
|
|
}
|
|
|
|
g_warning ("Unknown pad %s", GST_PAD_NAME (pad));
|
|
}
|
|
|
|
/* maybe some of these functions should be moved to riff.h? */
|
|
|
|
/* DISCLAIMER: this function is fairly ugly. So be it (i.e. it makes the rest easier)
|
|
* so is this struct */
|
|
|
|
typedef struct _GstMarkedBuffer
|
|
{
|
|
guint *highmark;
|
|
GstBuffer *buffer;
|
|
} GstMarkedBuffer;
|
|
|
|
static void
|
|
gst_avi_mux_write_tag (const GstTagList * list, const gchar * tag,
|
|
gpointer data)
|
|
{
|
|
const struct
|
|
{
|
|
guint32 fcc;
|
|
gchar *tag;
|
|
} rifftags[] = {
|
|
{
|
|
GST_RIFF_INFO_IARL, GST_TAG_LOCATION}, {
|
|
GST_RIFF_INFO_IART, GST_TAG_ARTIST}, {
|
|
GST_RIFF_INFO_ICMT, GST_TAG_COMMENT}, {
|
|
GST_RIFF_INFO_ICOP, GST_TAG_COPYRIGHT}, {
|
|
GST_RIFF_INFO_ICRD, GST_TAG_DATE}, {
|
|
GST_RIFF_INFO_IGNR, GST_TAG_GENRE}, {
|
|
GST_RIFF_INFO_IKEY, GST_TAG_KEYWORDS}, {
|
|
GST_RIFF_INFO_INAM, GST_TAG_TITLE}, {
|
|
GST_RIFF_INFO_ISFT, GST_TAG_ENCODER}, {
|
|
GST_RIFF_INFO_ISRC, GST_TAG_ISRC}, {
|
|
0, NULL}
|
|
};
|
|
gint n, len, plen;
|
|
GstBuffer *buf = ((GstMarkedBuffer *) data)->buffer;
|
|
guint *highmark = ((GstMarkedBuffer *) data)->highmark;
|
|
guint8 *buffdata = GST_BUFFER_DATA (buf) + *highmark;
|
|
gchar *str;
|
|
|
|
for (n = 0; rifftags[n].fcc != 0; n++) {
|
|
if (!strcmp (rifftags[n].tag, tag) &&
|
|
gst_tag_list_get_string (list, tag, &str) && str) {
|
|
len = strlen (str);
|
|
plen = len + 1;
|
|
if (plen & 1)
|
|
plen++;
|
|
if (GST_BUFFER_SIZE (buf) >= *highmark + 8 + plen) {
|
|
GST_WRITE_UINT32_LE (buffdata, rifftags[n].fcc);
|
|
GST_WRITE_UINT32_LE (buffdata + 4, len + 1);
|
|
memcpy (buffdata + 8, str, len);
|
|
buffdata[8 + len] = 0;
|
|
*highmark += 8 + plen;
|
|
GST_DEBUG ("writing tag in buffer %p, highmark at %d", buf, *highmark);
|
|
}
|
|
g_free (str);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
#define ODML_SUPERINDEX_SIZE \
|
|
(32 + GST_AVI_SUPERINDEX_COUNT * sizeof (gst_avi_superindex_entry))
|
|
|
|
static GstBuffer *
|
|
gst_avi_mux_riff_get_avi_header (GstAviMux * avimux)
|
|
{
|
|
const GstTagList *tags;
|
|
GstBuffer *buffer;
|
|
guint8 *buffdata;
|
|
guint size = 0;
|
|
guint highmark = 0;
|
|
|
|
/* pointer to list size field */
|
|
guint8 *riff_size, *hdrl_size;
|
|
GSList *node;
|
|
|
|
GST_DEBUG_OBJECT (avimux, "creating avi header, data_size %u, idx_size %u",
|
|
avimux->data_size, avimux->idx_size);
|
|
|
|
if (avimux->tags_snap)
|
|
tags = avimux->tags_snap;
|
|
else {
|
|
/* need to make snapshot of current state of tags to ensure the same set
|
|
* is used next time around during header rewrite at the end */
|
|
tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (avimux));
|
|
if (tags)
|
|
tags = avimux->tags_snap = gst_tag_list_copy (tags);
|
|
}
|
|
if (tags) {
|
|
/* that should be the strlen of all tags + header sizes
|
|
* not all of tags end up in a avi, still this is a good estimate
|
|
*/
|
|
gchar *str = gst_structure_to_string (tags);
|
|
size += strlen (str) + 8 * gst_structure_n_fields (tags);
|
|
g_free (str);
|
|
}
|
|
|
|
/* allocate the buffer, starting with some wild/safe upper bound */
|
|
size += avimux->codec_data_size + 100 + sizeof (gst_riff_avih)
|
|
+ (g_slist_length (avimux->sinkpads) * (100 + sizeof (gst_riff_strh_full)
|
|
+ sizeof (gst_riff_strf_vids)
|
|
+ sizeof (gst_riff_vprp)
|
|
+ sizeof (gst_riff_vprp_video_field_desc) * 2
|
|
+ sizeof (gst_riff_strf_auds) + 2 + ODML_SUPERINDEX_SIZE));
|
|
buffer = gst_buffer_new_and_alloc (size);
|
|
buffdata = GST_BUFFER_DATA (buffer);
|
|
highmark = 0;
|
|
GST_DEBUG_OBJECT (avimux, "creating buffer %p, size %d, highmark at 0",
|
|
buffer, GST_BUFFER_SIZE (buffer));
|
|
|
|
/* avi header metadata */
|
|
memcpy (buffdata + 0, "RIFF", 4);
|
|
/* fill in RIFF size later */
|
|
riff_size = buffdata + 4;
|
|
memcpy (buffdata + 8, "AVI ", 4);
|
|
memcpy (buffdata + 12, "LIST", 4);
|
|
/* fill in header size later */
|
|
hdrl_size = buffdata + 16;
|
|
memcpy (buffdata + 20, "hdrl", 4);
|
|
memcpy (buffdata + 24, "avih", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 28, sizeof (gst_riff_avih));
|
|
buffdata += 32;
|
|
highmark += 32;
|
|
|
|
/* the AVI header itself */
|
|
GST_WRITE_UINT32_LE (buffdata + 0, avimux->avi_hdr.us_frame);
|
|
GST_WRITE_UINT32_LE (buffdata + 4, avimux->avi_hdr.max_bps);
|
|
GST_WRITE_UINT32_LE (buffdata + 8, avimux->avi_hdr.pad_gran);
|
|
GST_WRITE_UINT32_LE (buffdata + 12, avimux->avi_hdr.flags);
|
|
GST_WRITE_UINT32_LE (buffdata + 16, avimux->avi_hdr.tot_frames);
|
|
GST_WRITE_UINT32_LE (buffdata + 20, avimux->avi_hdr.init_frames);
|
|
GST_WRITE_UINT32_LE (buffdata + 24, avimux->avi_hdr.streams);
|
|
GST_WRITE_UINT32_LE (buffdata + 28, avimux->avi_hdr.bufsize);
|
|
GST_WRITE_UINT32_LE (buffdata + 32, avimux->avi_hdr.width);
|
|
GST_WRITE_UINT32_LE (buffdata + 36, avimux->avi_hdr.height);
|
|
GST_WRITE_UINT32_LE (buffdata + 40, avimux->avi_hdr.scale);
|
|
GST_WRITE_UINT32_LE (buffdata + 44, avimux->avi_hdr.rate);
|
|
GST_WRITE_UINT32_LE (buffdata + 48, avimux->avi_hdr.start);
|
|
GST_WRITE_UINT32_LE (buffdata + 52, avimux->avi_hdr.length);
|
|
buffdata += 56;
|
|
highmark += 56;
|
|
|
|
/* stream data */
|
|
node = avimux->sinkpads;
|
|
while (node) {
|
|
GstAviPad *avipad = (GstAviPad *) node->data;
|
|
GstAviVideoPad *vidpad = (GstAviVideoPad *) avipad;
|
|
GstAviAudioPad *audpad = (GstAviAudioPad *) avipad;
|
|
guint codec_size = 0, strl_size = 0, vprp_size = 0;
|
|
|
|
if (avipad->is_video) {
|
|
if (vidpad->vids_codec_data)
|
|
codec_size = GST_BUFFER_SIZE (vidpad->vids_codec_data);
|
|
strl_size = sizeof (gst_riff_strh_full) + sizeof (gst_riff_strf_vids)
|
|
+ GST_ROUND_UP_2 (codec_size) + 4 * 5 + ODML_SUPERINDEX_SIZE;
|
|
if (vidpad->vprp.aspect) {
|
|
/* let's be on the safe side */
|
|
vidpad->vprp.fields = MIN (vidpad->vprp.fields,
|
|
GST_RIFF_VPRP_VIDEO_FIELDS);
|
|
vprp_size = G_STRUCT_OFFSET (gst_riff_vprp, field_info)
|
|
+ (vidpad->vprp.fields * sizeof (gst_riff_vprp_video_field_desc));
|
|
strl_size += 4 * 2 + vprp_size;
|
|
}
|
|
} else {
|
|
if (audpad->auds_codec_data)
|
|
codec_size = GST_BUFFER_SIZE (audpad->auds_codec_data);
|
|
/* +2 is codec_size field, not part of gst_riff_strf_auds */
|
|
strl_size = sizeof (gst_riff_strh_full) + sizeof (gst_riff_strf_auds) + 2
|
|
+ GST_ROUND_UP_2 (codec_size) + 4 * 5 + ODML_SUPERINDEX_SIZE;
|
|
}
|
|
|
|
/* stream list metadata */
|
|
memcpy (buffdata + 0, "LIST", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 4, strl_size);
|
|
memcpy (buffdata + 8, "strl", 4);
|
|
/* generic header */
|
|
memcpy (buffdata + 12, "strh", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 16, sizeof (gst_riff_strh_full));
|
|
/* the actual header */
|
|
GST_WRITE_UINT32_LE (buffdata + 20, avipad->hdr.type);
|
|
GST_WRITE_UINT32_LE (buffdata + 24, avipad->hdr.fcc_handler);
|
|
GST_WRITE_UINT32_LE (buffdata + 28, avipad->hdr.flags);
|
|
GST_WRITE_UINT32_LE (buffdata + 32, avipad->hdr.priority);
|
|
GST_WRITE_UINT32_LE (buffdata + 36, avipad->hdr.init_frames);
|
|
GST_WRITE_UINT32_LE (buffdata + 40, avipad->hdr.scale);
|
|
GST_WRITE_UINT32_LE (buffdata + 44, avipad->hdr.rate);
|
|
GST_WRITE_UINT32_LE (buffdata + 48, avipad->hdr.start);
|
|
GST_WRITE_UINT32_LE (buffdata + 52, avipad->hdr.length);
|
|
GST_WRITE_UINT32_LE (buffdata + 56, avipad->hdr.bufsize);
|
|
GST_WRITE_UINT32_LE (buffdata + 60, avipad->hdr.quality);
|
|
GST_WRITE_UINT32_LE (buffdata + 64, avipad->hdr.samplesize);
|
|
GST_WRITE_UINT16_LE (buffdata + 68, 0);
|
|
GST_WRITE_UINT16_LE (buffdata + 70, 0);
|
|
GST_WRITE_UINT16_LE (buffdata + 72, 0);
|
|
GST_WRITE_UINT16_LE (buffdata + 74, 0);
|
|
buffdata += 76;
|
|
highmark += 76;
|
|
|
|
if (avipad->is_video) {
|
|
/* the video header */
|
|
memcpy (buffdata + 0, "strf", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 4,
|
|
sizeof (gst_riff_strf_vids) + codec_size);
|
|
/* the actual header */
|
|
GST_WRITE_UINT32_LE (buffdata + 8, vidpad->vids.size + codec_size);
|
|
GST_WRITE_UINT32_LE (buffdata + 12, vidpad->vids.width);
|
|
GST_WRITE_UINT32_LE (buffdata + 16, vidpad->vids.height);
|
|
GST_WRITE_UINT16_LE (buffdata + 20, vidpad->vids.planes);
|
|
GST_WRITE_UINT16_LE (buffdata + 22, vidpad->vids.bit_cnt);
|
|
GST_WRITE_UINT32_LE (buffdata + 24, vidpad->vids.compression);
|
|
GST_WRITE_UINT32_LE (buffdata + 28, vidpad->vids.image_size);
|
|
GST_WRITE_UINT32_LE (buffdata + 32, vidpad->vids.xpels_meter);
|
|
GST_WRITE_UINT32_LE (buffdata + 36, vidpad->vids.ypels_meter);
|
|
GST_WRITE_UINT32_LE (buffdata + 40, vidpad->vids.num_colors);
|
|
GST_WRITE_UINT32_LE (buffdata + 44, vidpad->vids.imp_colors);
|
|
buffdata += 48;
|
|
highmark += 48;
|
|
|
|
/* include codec data, if any */
|
|
if (codec_size) {
|
|
memcpy (buffdata, GST_BUFFER_DATA (vidpad->vids_codec_data),
|
|
codec_size);
|
|
|
|
buffdata += codec_size;
|
|
highmark += codec_size;
|
|
}
|
|
/* padding */
|
|
if (highmark & 0x1) {
|
|
highmark++;
|
|
buffdata++;
|
|
}
|
|
|
|
/* add video property data, mainly for aspect ratio, if any */
|
|
if (vprp_size) {
|
|
gint f;
|
|
|
|
/* the vprp header */
|
|
memcpy (buffdata + 0, "vprp", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 4, vprp_size);
|
|
/* the actual data */
|
|
GST_WRITE_UINT32_LE (buffdata + 8, vidpad->vprp.format_token);
|
|
GST_WRITE_UINT32_LE (buffdata + 12, vidpad->vprp.standard);
|
|
GST_WRITE_UINT32_LE (buffdata + 16, vidpad->vprp.vert_rate);
|
|
GST_WRITE_UINT32_LE (buffdata + 20, vidpad->vprp.hor_t_total);
|
|
GST_WRITE_UINT32_LE (buffdata + 24, vidpad->vprp.vert_lines);
|
|
GST_WRITE_UINT32_LE (buffdata + 28, vidpad->vprp.aspect);
|
|
GST_WRITE_UINT32_LE (buffdata + 32, vidpad->vprp.width);
|
|
GST_WRITE_UINT32_LE (buffdata + 36, vidpad->vprp.height);
|
|
GST_WRITE_UINT32_LE (buffdata + 40, vidpad->vprp.fields);
|
|
buffdata += 44;
|
|
highmark += 44;
|
|
for (f = 0; f < vidpad->vprp.fields; ++f) {
|
|
gst_riff_vprp_video_field_desc *fd;
|
|
|
|
fd = &(vidpad->vprp.field_info[f]);
|
|
GST_WRITE_UINT32_LE (buffdata + 0, fd->compressed_bm_height);
|
|
GST_WRITE_UINT32_LE (buffdata + 4, fd->compressed_bm_width);
|
|
GST_WRITE_UINT32_LE (buffdata + 8, fd->valid_bm_height);
|
|
GST_WRITE_UINT32_LE (buffdata + 12, fd->valid_bm_width);
|
|
GST_WRITE_UINT32_LE (buffdata + 16, fd->valid_bm_x_offset);
|
|
GST_WRITE_UINT32_LE (buffdata + 20, fd->valid_bm_y_offset);
|
|
GST_WRITE_UINT32_LE (buffdata + 24, fd->video_x_t_offset);
|
|
GST_WRITE_UINT32_LE (buffdata + 28, fd->video_y_start);
|
|
buffdata += 32;
|
|
highmark += 32;
|
|
}
|
|
}
|
|
} else {
|
|
/* the audio header */
|
|
memcpy (buffdata + 0, "strf", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 4,
|
|
sizeof (gst_riff_strf_auds) + 2 + codec_size);
|
|
/* the actual header */
|
|
GST_WRITE_UINT16_LE (buffdata + 8, audpad->auds.format);
|
|
GST_WRITE_UINT16_LE (buffdata + 10, audpad->auds.channels);
|
|
GST_WRITE_UINT32_LE (buffdata + 12, audpad->auds.rate);
|
|
GST_WRITE_UINT32_LE (buffdata + 16, audpad->auds.av_bps);
|
|
GST_WRITE_UINT16_LE (buffdata + 20, audpad->auds.blockalign);
|
|
GST_WRITE_UINT16_LE (buffdata + 22, audpad->auds.size);
|
|
GST_WRITE_UINT16_LE (buffdata + 24, codec_size);
|
|
buffdata += 26;
|
|
highmark += 26;
|
|
|
|
/* include codec data, if any */
|
|
if (codec_size) {
|
|
memcpy (buffdata, GST_BUFFER_DATA (audpad->auds_codec_data),
|
|
codec_size);
|
|
|
|
buffdata += codec_size;
|
|
highmark += codec_size;
|
|
}
|
|
/* padding */
|
|
if (highmark & 0x1) {
|
|
highmark++;
|
|
buffdata++;
|
|
}
|
|
}
|
|
|
|
/* odml superindex chunk */
|
|
if (avipad->idx_index > 0)
|
|
memcpy (buffdata, "indx", 4);
|
|
else
|
|
memcpy (buffdata, "JUNK", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 4, ODML_SUPERINDEX_SIZE - 8); /* chunk size */
|
|
GST_WRITE_UINT16_LE (buffdata + 8, 4); /* bytes per entry */
|
|
buffdata[10] = 0; /* index subtype */
|
|
buffdata[11] = GST_AVI_INDEX_OF_INDEXES; /* index type */
|
|
GST_WRITE_UINT32_LE (buffdata + 12, avipad->idx_index); /* entries in use */
|
|
memcpy (buffdata + 16, avipad->tag, 4); /* stream id */
|
|
GST_WRITE_UINT32_LE (buffdata + 20, 0); /* reserved */
|
|
GST_WRITE_UINT32_LE (buffdata + 24, 0); /* reserved */
|
|
GST_WRITE_UINT32_LE (buffdata + 28, 0); /* reserved */
|
|
memcpy (buffdata + 32, avipad->idx,
|
|
GST_AVI_SUPERINDEX_COUNT * sizeof (gst_avi_superindex_entry));
|
|
buffdata += ODML_SUPERINDEX_SIZE;
|
|
highmark += ODML_SUPERINDEX_SIZE;
|
|
|
|
node = node->next;
|
|
}
|
|
|
|
if (avimux->video_pads > 0) {
|
|
/* odml header */
|
|
memcpy (buffdata + 0, "LIST", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 4, sizeof (guint32) + 4 * 3);
|
|
memcpy (buffdata + 8, "odml", 4);
|
|
memcpy (buffdata + 12, "dmlh", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 16, sizeof (guint32));
|
|
GST_WRITE_UINT32_LE (buffdata + 20, avimux->total_frames);
|
|
buffdata += 24;
|
|
highmark += 24;
|
|
}
|
|
|
|
GST_WRITE_UINT32_LE (hdrl_size, (guint32) (buffdata - hdrl_size) - 4);
|
|
|
|
/* tags */
|
|
if (tags) {
|
|
guint8 *ptr;
|
|
guint startsize;
|
|
GstMarkedBuffer data = { &highmark, buffer };
|
|
|
|
memcpy (buffdata + 0, "LIST", 4);
|
|
ptr = buffdata + 4; /* fill in later */
|
|
startsize = highmark + 4;
|
|
memcpy (buffdata + 8, "INFO", 4);
|
|
buffdata += 12;
|
|
highmark += 12;
|
|
|
|
/* 12 bytes is needed for data header */
|
|
GST_BUFFER_SIZE (buffer) -= 12;
|
|
gst_tag_list_foreach (tags, gst_avi_mux_write_tag, &data);
|
|
GST_BUFFER_SIZE (buffer) += 12;
|
|
buffdata = GST_BUFFER_DATA (buffer) + highmark;
|
|
|
|
/* update list size */
|
|
GST_WRITE_UINT32_LE (ptr, highmark - startsize - 4);
|
|
}
|
|
|
|
/* avi data header */
|
|
memcpy (buffdata + 0, "LIST", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 4, avimux->data_size);
|
|
memcpy (buffdata + 8, "movi", 4);
|
|
buffdata += 12;
|
|
highmark += 12;
|
|
|
|
/* finally we can fill in the RIFF size */
|
|
/* note that riff only counts the first avi chunk */
|
|
GST_WRITE_UINT32_LE (riff_size, (guint32) (buffdata - riff_size - 4) /* header and movi tags */
|
|
+avimux->idx_size + avimux->data_size - 4); /* movi data and index */
|
|
|
|
{ /* only the part that is filled in actually makes up the header
|
|
* unref the parent as we only need this part from now on */
|
|
GstBuffer *subbuffer = gst_buffer_create_sub (buffer, 0, highmark);
|
|
|
|
gst_buffer_unref (buffer);
|
|
return subbuffer;
|
|
}
|
|
}
|
|
|
|
static GstBuffer *
|
|
gst_avi_mux_riff_get_avix_header (guint32 datax_size)
|
|
{
|
|
GstBuffer *buffer;
|
|
guint8 *buffdata;
|
|
|
|
buffer = gst_buffer_new_and_alloc (24);
|
|
buffdata = GST_BUFFER_DATA (buffer);
|
|
|
|
memcpy (buffdata + 0, "RIFF", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 4, datax_size + 3 * 4);
|
|
memcpy (buffdata + 8, "AVIX", 4);
|
|
memcpy (buffdata + 12, "LIST", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 16, datax_size);
|
|
memcpy (buffdata + 20, "movi", 4);
|
|
|
|
return buffer;
|
|
}
|
|
|
|
static inline GstBuffer *
|
|
gst_avi_mux_riff_get_header (GstAviPad * avipad, guint32 video_frame_size)
|
|
{
|
|
GstBuffer *buffer;
|
|
guint8 *buffdata;
|
|
|
|
buffer = gst_buffer_new_and_alloc (8);
|
|
buffdata = GST_BUFFER_DATA (buffer);
|
|
memcpy (buffdata + 0, avipad->tag, 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 4, video_frame_size);
|
|
|
|
return buffer;
|
|
}
|
|
|
|
/* write an odml index chunk in the movi list */
|
|
static GstFlowReturn
|
|
gst_avi_mux_write_avix_index (GstAviMux * avimux, gchar * code,
|
|
gchar * chunk, gst_avi_superindex_entry * super_index,
|
|
gint * super_index_count)
|
|
{
|
|
GstFlowReturn res;
|
|
GstBuffer *buffer;
|
|
guint8 *buffdata, *data;
|
|
gst_riff_index_entry *entry;
|
|
gint i;
|
|
guint32 size, entry_count;
|
|
|
|
/* allocate the maximum possible */
|
|
buffer = gst_buffer_new_and_alloc (32 + 8 * avimux->idx_index);
|
|
buffdata = GST_BUFFER_DATA (buffer);
|
|
|
|
/* general index chunk info */
|
|
memcpy (buffdata + 0, chunk, 4); /* chunk id */
|
|
GST_WRITE_UINT32_LE (buffdata + 4, 0); /* chunk size; fill later */
|
|
GST_WRITE_UINT16_LE (buffdata + 8, 2); /* index entry is 2 words */
|
|
buffdata[10] = 0; /* index subtype */
|
|
buffdata[11] = GST_AVI_INDEX_OF_CHUNKS; /* index type: AVI_INDEX_OF_CHUNKS */
|
|
GST_WRITE_UINT32_LE (buffdata + 12, 0); /* entries in use; fill later */
|
|
memcpy (buffdata + 16, code, 4); /* stream to which index refers */
|
|
GST_WRITE_UINT64_LE (buffdata + 20, avimux->avix_start); /* base offset */
|
|
GST_WRITE_UINT32_LE (buffdata + 28, 0); /* reserved */
|
|
buffdata += 32;
|
|
|
|
/* now the actual index entries */
|
|
i = avimux->idx_index;
|
|
entry = avimux->idx;
|
|
while (i > 0) {
|
|
if (memcmp (&entry->id, code, 4) == 0) {
|
|
/* enter relative offset to the data (!) */
|
|
GST_WRITE_UINT32_LE (buffdata, GUINT32_FROM_LE (entry->offset) + 8);
|
|
/* msb is set if not (!) keyframe */
|
|
GST_WRITE_UINT32_LE (buffdata + 4, GUINT32_FROM_LE (entry->size)
|
|
| (GUINT32_FROM_LE (entry->flags)
|
|
& GST_RIFF_IF_KEYFRAME ? 0 : 1U << 31));
|
|
buffdata += 8;
|
|
}
|
|
i--;
|
|
entry++;
|
|
}
|
|
|
|
/* ok, now we know the size and no of entries, fill in where needed */
|
|
data = GST_BUFFER_DATA (buffer);
|
|
GST_BUFFER_SIZE (buffer) = size = buffdata - data;
|
|
GST_WRITE_UINT32_LE (data + 4, size - 8);
|
|
entry_count = (size - 32) / 8;
|
|
GST_WRITE_UINT32_LE (data + 12, entry_count);
|
|
|
|
/* decorate and send */
|
|
gst_buffer_set_caps (buffer, GST_PAD_CAPS (avimux->srcpad));
|
|
if ((res = gst_pad_push (avimux->srcpad, buffer)) != GST_FLOW_OK)
|
|
return res;
|
|
|
|
/* keep track of this in superindex (if room) ... */
|
|
if (*super_index_count < GST_AVI_SUPERINDEX_COUNT) {
|
|
i = *super_index_count;
|
|
super_index[i].offset = GUINT64_TO_LE (avimux->total_data);
|
|
super_index[i].size = GUINT32_TO_LE (size);
|
|
super_index[i].duration = GUINT32_TO_LE (entry_count);
|
|
(*super_index_count)++;
|
|
} else
|
|
GST_WARNING_OBJECT (avimux, "No more room in superindex of stream %s",
|
|
code);
|
|
|
|
/* ... and in size */
|
|
avimux->total_data += size;
|
|
if (avimux->is_bigfile)
|
|
avimux->datax_size += size;
|
|
else
|
|
avimux->data_size += size;
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
/* some other usable functions (thankyou xawtv ;-) ) */
|
|
|
|
static void
|
|
gst_avi_mux_add_index (GstAviMux * avimux, gchar * code, guint32 flags,
|
|
guint32 size)
|
|
{
|
|
if (avimux->idx_index == avimux->idx_count) {
|
|
avimux->idx_count += 256;
|
|
avimux->idx =
|
|
g_realloc (avimux->idx,
|
|
avimux->idx_count * sizeof (gst_riff_index_entry));
|
|
}
|
|
memcpy (&(avimux->idx[avimux->idx_index].id), code, 4);
|
|
avimux->idx[avimux->idx_index].flags = GUINT32_TO_LE (flags);
|
|
avimux->idx[avimux->idx_index].offset = GUINT32_TO_LE (avimux->idx_offset);
|
|
avimux->idx[avimux->idx_index].size = GUINT32_TO_LE (size);
|
|
avimux->idx_index++;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_avi_mux_write_index (GstAviMux * avimux)
|
|
{
|
|
GstFlowReturn res;
|
|
GstBuffer *buffer;
|
|
guint8 *buffdata;
|
|
|
|
buffer = gst_buffer_new_and_alloc (8);
|
|
buffdata = GST_BUFFER_DATA (buffer);
|
|
memcpy (buffdata + 0, "idx1", 4);
|
|
GST_WRITE_UINT32_LE (buffdata + 4,
|
|
avimux->idx_index * sizeof (gst_riff_index_entry));
|
|
|
|
gst_buffer_set_caps (buffer, GST_PAD_CAPS (avimux->srcpad));
|
|
res = gst_pad_push (avimux->srcpad, buffer);
|
|
if (res != GST_FLOW_OK)
|
|
return res;
|
|
|
|
buffer = gst_buffer_new ();
|
|
GST_BUFFER_SIZE (buffer) = avimux->idx_index * sizeof (gst_riff_index_entry);
|
|
GST_BUFFER_DATA (buffer) = (guint8 *) avimux->idx;
|
|
GST_BUFFER_MALLOCDATA (buffer) = GST_BUFFER_DATA (buffer);
|
|
avimux->idx = NULL; /* will be free()'ed by gst_buffer_unref() */
|
|
avimux->total_data += GST_BUFFER_SIZE (buffer) + 8;
|
|
|
|
gst_buffer_set_caps (buffer, GST_PAD_CAPS (avimux->srcpad));
|
|
res = gst_pad_push (avimux->srcpad, buffer);
|
|
if (res != GST_FLOW_OK)
|
|
return res;
|
|
|
|
avimux->idx_size += avimux->idx_index * sizeof (gst_riff_index_entry) + 8;
|
|
|
|
/* update header */
|
|
avimux->avi_hdr.flags |= GST_RIFF_AVIH_HASINDEX;
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_avi_mux_bigfile (GstAviMux * avimux, gboolean last)
|
|
{
|
|
GstFlowReturn res = GST_FLOW_OK;
|
|
GstBuffer *header;
|
|
GstEvent *event;
|
|
GSList *node;
|
|
|
|
/* first some odml standard index chunks in the movi list */
|
|
node = avimux->sinkpads;
|
|
while (node) {
|
|
GstAviPad *avipad = (GstAviPad *) node->data;
|
|
|
|
node = node->next;
|
|
|
|
res = gst_avi_mux_write_avix_index (avimux, avipad->tag,
|
|
avipad->idx_tag, avipad->idx, &avipad->idx_index);
|
|
if (res != GST_FLOW_OK)
|
|
return res;
|
|
}
|
|
|
|
if (avimux->is_bigfile) {
|
|
/* search back */
|
|
event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
|
|
avimux->avix_start, GST_CLOCK_TIME_NONE, avimux->avix_start);
|
|
/* if the event succeeds */
|
|
gst_pad_push_event (avimux->srcpad, event);
|
|
|
|
/* rewrite AVIX header */
|
|
header = gst_avi_mux_riff_get_avix_header (avimux->datax_size);
|
|
gst_buffer_set_caps (header, GST_PAD_CAPS (avimux->srcpad));
|
|
res = gst_pad_push (avimux->srcpad, header);
|
|
|
|
/* go back to current location, at least try */
|
|
event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
|
|
avimux->total_data, GST_CLOCK_TIME_NONE, avimux->total_data);
|
|
gst_pad_push_event (avimux->srcpad, event);
|
|
|
|
if (res != GST_FLOW_OK)
|
|
return res;
|
|
} else { /* write a standard index in the first riff chunk */
|
|
res = gst_avi_mux_write_index (avimux);
|
|
/* the index data/buffer is freed by pushing it */
|
|
avimux->idx_count = 0;
|
|
if (res != GST_FLOW_OK)
|
|
return res;
|
|
}
|
|
|
|
avimux->avix_start = avimux->total_data;
|
|
|
|
if (last)
|
|
return res;
|
|
|
|
avimux->is_bigfile = TRUE;
|
|
avimux->numx_frames = 0;
|
|
avimux->datax_size = 4; /* movi tag */
|
|
avimux->idx_index = 0;
|
|
|
|
header = gst_avi_mux_riff_get_avix_header (0);
|
|
avimux->total_data += GST_BUFFER_SIZE (header);
|
|
/* avix_start is used as base offset for the odml index chunk */
|
|
avimux->idx_offset = avimux->total_data - avimux->avix_start;
|
|
gst_buffer_set_caps (header, GST_PAD_CAPS (avimux->srcpad));
|
|
return gst_pad_push (avimux->srcpad, header);
|
|
}
|
|
|
|
/* enough header blabla now, let's go on to actually writing the headers */
|
|
|
|
static GstFlowReturn
|
|
gst_avi_mux_start_file (GstAviMux * avimux)
|
|
{
|
|
GstFlowReturn res;
|
|
GstBuffer *header;
|
|
GSList *node;
|
|
|
|
avimux->total_data = 0;
|
|
avimux->total_frames = 0;
|
|
avimux->data_size = 4; /* movi tag */
|
|
avimux->datax_size = 0;
|
|
avimux->num_frames = 0;
|
|
avimux->numx_frames = 0;
|
|
avimux->avix_start = 0;
|
|
|
|
avimux->idx_index = 0;
|
|
avimux->idx_offset = 0; /* see 10 lines below */
|
|
avimux->idx_size = 0;
|
|
avimux->idx_count = 0;
|
|
avimux->idx = NULL;
|
|
|
|
/* state */
|
|
avimux->write_header = FALSE;
|
|
avimux->restart = FALSE;
|
|
|
|
/* init streams, see what we've got */
|
|
node = avimux->sinkpads;
|
|
avimux->audio_pads = avimux->video_pads = 0;
|
|
while (node) {
|
|
GstAviPad *avipad = (GstAviPad *) node->data;
|
|
|
|
node = node->next;
|
|
|
|
if (!avipad->is_video) {
|
|
/* audio stream numbers must start at 1 iff there is a video stream 0;
|
|
* request_pad inserts video pad at head of list, so this test suffices */
|
|
if (avimux->video_pads)
|
|
avimux->audio_pads++;
|
|
avipad->tag = g_strdup_printf ("%02uwb", avimux->audio_pads);
|
|
avipad->idx_tag = g_strdup_printf ("ix%02u", avimux->audio_pads);
|
|
if (!avimux->video_pads)
|
|
avimux->audio_pads++;
|
|
} else {
|
|
avipad->tag = g_strdup_printf ("%02udb", avimux->video_pads);
|
|
avipad->idx_tag = g_strdup_printf ("ix%02u", avimux->video_pads++);
|
|
}
|
|
}
|
|
|
|
/* let downstream know we think in BYTES and expect to do seeking later on */
|
|
gst_pad_push_event (avimux->srcpad,
|
|
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES, 0, -1, 0));
|
|
|
|
/* header */
|
|
avimux->avi_hdr.streams = g_slist_length (avimux->sinkpads);
|
|
avimux->is_bigfile = FALSE;
|
|
|
|
header = gst_avi_mux_riff_get_avi_header (avimux);
|
|
avimux->total_data += GST_BUFFER_SIZE (header);
|
|
|
|
gst_buffer_set_caps (header, GST_PAD_CAPS (avimux->srcpad));
|
|
res = gst_pad_push (avimux->srcpad, header);
|
|
|
|
avimux->idx_offset = avimux->total_data;
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_avi_mux_stop_file (GstAviMux * avimux)
|
|
{
|
|
GstFlowReturn res = GST_FLOW_OK;
|
|
GstEvent *event;
|
|
GstBuffer *header;
|
|
GSList *node;
|
|
|
|
/* if bigfile, rewrite header, else write indexes */
|
|
/* don't bail out at once if error, still try to re-write header */
|
|
if (avimux->video_pads > 0) {
|
|
if (avimux->is_bigfile) {
|
|
res = gst_avi_mux_bigfile (avimux, TRUE);
|
|
} else {
|
|
res = gst_avi_mux_write_index (avimux);
|
|
}
|
|
}
|
|
|
|
/* we do our best to make it interleaved at least ... */
|
|
if (avimux->audio_pads > 0 && avimux->video_pads > 0)
|
|
avimux->avi_hdr.flags |= GST_RIFF_AVIH_ISINTERLEAVED;
|
|
|
|
/* set rate and everything having to do with that */
|
|
avimux->avi_hdr.max_bps = 0;
|
|
node = avimux->sinkpads;
|
|
while (node) {
|
|
GstAviPad *avipad = (GstAviPad *) node->data;
|
|
|
|
node = node->next;
|
|
|
|
if (!avipad->is_video) {
|
|
GstAviAudioPad *audpad = (GstAviAudioPad *) avipad;
|
|
|
|
/* calculate bps if needed */
|
|
if (!audpad->auds.av_bps) {
|
|
if (audpad->audio_time) {
|
|
audpad->auds.av_bps =
|
|
(GST_SECOND * audpad->audio_size) / audpad->audio_time;
|
|
/* round bps to nearest multiple of 8;
|
|
* which is much more likely to be the (cbr) bitrate in use;
|
|
* which in turn results in better timestamp calculation on playback */
|
|
audpad->auds.av_bps = GST_ROUND_UP_8 (audpad->auds.av_bps - 4);
|
|
} else {
|
|
GST_ELEMENT_WARNING (avimux, STREAM, MUX,
|
|
(_("No or invalid input audio, AVI stream will be corrupt.")),
|
|
(NULL));
|
|
audpad->auds.av_bps = 0;
|
|
}
|
|
avipad->hdr.rate = audpad->auds.av_bps * avipad->hdr.scale;
|
|
}
|
|
avimux->avi_hdr.max_bps += audpad->auds.av_bps;
|
|
avipad->hdr.length = (audpad->audio_time * avipad->hdr.rate) / GST_SECOND;
|
|
} else {
|
|
GstAviVideoPad *vidpad = (GstAviVideoPad *) avipad;
|
|
|
|
avimux->avi_hdr.max_bps += ((vidpad->vids.bit_cnt + 7) / 8) *
|
|
(1000000. / avimux->avi_hdr.us_frame) * vidpad->vids.image_size;
|
|
avipad->hdr.length = avimux->total_frames;
|
|
}
|
|
}
|
|
|
|
/* statistics/total_frames/... */
|
|
avimux->avi_hdr.tot_frames = avimux->num_frames;
|
|
|
|
/* seek and rewrite the header */
|
|
header = gst_avi_mux_riff_get_avi_header (avimux);
|
|
event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
|
|
0, GST_CLOCK_TIME_NONE, 0);
|
|
gst_pad_push_event (avimux->srcpad, event);
|
|
|
|
gst_buffer_set_caps (header, GST_PAD_CAPS (avimux->srcpad));
|
|
/* the first error survives */
|
|
if (res == GST_FLOW_OK)
|
|
res = gst_pad_push (avimux->srcpad, header);
|
|
else
|
|
gst_pad_push (avimux->srcpad, header);
|
|
|
|
event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
|
|
avimux->total_data, GST_CLOCK_TIME_NONE, avimux->total_data);
|
|
gst_pad_push_event (avimux->srcpad, event);
|
|
|
|
avimux->write_header = TRUE;
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_avi_mux_restart_file (GstAviMux * avimux)
|
|
{
|
|
GstFlowReturn res;
|
|
|
|
if ((res = gst_avi_mux_stop_file (avimux)) != GST_FLOW_OK)
|
|
return res;
|
|
|
|
gst_pad_push_event (avimux->srcpad, gst_event_new_eos ());
|
|
|
|
return gst_avi_mux_start_file (avimux);
|
|
}
|
|
|
|
/* handle events (search) */
|
|
static gboolean
|
|
gst_avi_mux_handle_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
GstAviMux *avimux;
|
|
gboolean ret;
|
|
|
|
avimux = GST_AVI_MUX (gst_pad_get_parent (pad));
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_TAG:{
|
|
GstTagList *list;
|
|
GstTagSetter *setter = GST_TAG_SETTER (avimux);
|
|
const GstTagMergeMode mode = gst_tag_setter_get_tag_merge_mode (setter);
|
|
|
|
gst_event_parse_tag (event, &list);
|
|
gst_tag_setter_merge_tags (setter, list, mode);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* now GstCollectPads can take care of the rest, e.g. EOS */
|
|
ret = avimux->collect_event (pad, event);
|
|
|
|
gst_object_unref (avimux);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* send extra 'padding' data */
|
|
static GstFlowReturn
|
|
gst_avi_mux_send_pad_data (GstAviMux * avimux, gulong num_bytes)
|
|
{
|
|
GstBuffer *buffer;
|
|
|
|
buffer = gst_buffer_new_and_alloc (num_bytes);
|
|
memset (GST_BUFFER_DATA (buffer), 0, num_bytes);
|
|
gst_buffer_set_caps (buffer, GST_PAD_CAPS (avimux->srcpad));
|
|
return gst_pad_push (avimux->srcpad, buffer);
|
|
}
|
|
|
|
/* do buffer */
|
|
static GstFlowReturn
|
|
gst_avi_mux_do_buffer (GstAviMux * avimux, GstAviPad * avipad)
|
|
{
|
|
GstFlowReturn res;
|
|
GstBuffer *data, *header;
|
|
gulong total_size, pad_bytes = 0;
|
|
guint flags;
|
|
|
|
data = gst_collect_pads_pop (avimux->collect, avipad->collect);
|
|
|
|
if (avimux->restart) {
|
|
if ((res = gst_avi_mux_restart_file (avimux)) != GST_FLOW_OK)
|
|
return res;
|
|
}
|
|
|
|
/* need to restart or start a next avix chunk ? */
|
|
if ((avimux->is_bigfile ? avimux->datax_size : avimux->data_size) +
|
|
GST_BUFFER_SIZE (data) > 1024 * 1024 * 2000) {
|
|
if (avimux->enable_large_avi) {
|
|
if ((res = gst_avi_mux_bigfile (avimux, FALSE)) != GST_FLOW_OK)
|
|
return res;
|
|
} else {
|
|
if ((res = gst_avi_mux_restart_file (avimux)) != GST_FLOW_OK)
|
|
return res;
|
|
}
|
|
}
|
|
|
|
/* get header and record some stats */
|
|
if (GST_BUFFER_SIZE (data) & 1) {
|
|
pad_bytes = 2 - (GST_BUFFER_SIZE (data) & 1);
|
|
}
|
|
header = gst_avi_mux_riff_get_header (avipad, GST_BUFFER_SIZE (data));
|
|
total_size = GST_BUFFER_SIZE (header) + GST_BUFFER_SIZE (data) + pad_bytes;
|
|
|
|
if (avimux->is_bigfile) {
|
|
avimux->datax_size += total_size;
|
|
} else {
|
|
avimux->data_size += total_size;
|
|
}
|
|
|
|
if (avipad->is_video) {
|
|
avimux->total_frames++;
|
|
|
|
if (avimux->is_bigfile) {
|
|
avimux->numx_frames++;
|
|
} else {
|
|
avimux->num_frames++;
|
|
}
|
|
|
|
flags = 0x02;
|
|
if (!GST_BUFFER_FLAG_IS_SET (data, GST_BUFFER_FLAG_DELTA_UNIT))
|
|
flags |= 0x10;
|
|
} else {
|
|
GstAviAudioPad *audpad = (GstAviAudioPad *) avipad;
|
|
|
|
flags = 0;
|
|
audpad->audio_size += GST_BUFFER_SIZE (data);
|
|
audpad->audio_time += GST_BUFFER_DURATION (data);
|
|
}
|
|
|
|
gst_avi_mux_add_index (avimux, avipad->tag, flags, GST_BUFFER_SIZE (data));
|
|
|
|
/* prepare buffers for sending */
|
|
gst_buffer_set_caps (header, GST_PAD_CAPS (avimux->srcpad));
|
|
data = gst_buffer_make_metadata_writable (data);
|
|
gst_buffer_set_caps (data, GST_PAD_CAPS (avimux->srcpad));
|
|
|
|
GST_LOG_OBJECT (avimux, "pushing buffers: head, data");
|
|
|
|
if ((res = gst_pad_push (avimux->srcpad, header)) != GST_FLOW_OK)
|
|
return res;
|
|
if ((res = gst_pad_push (avimux->srcpad, data)) != GST_FLOW_OK)
|
|
return res;
|
|
|
|
if (pad_bytes) {
|
|
if ((res = gst_avi_mux_send_pad_data (avimux, pad_bytes)) != GST_FLOW_OK)
|
|
return res;
|
|
}
|
|
|
|
/* if any push above fails, we're in trouble with file consistency anyway */
|
|
avimux->total_data += total_size;
|
|
avimux->idx_offset += total_size;
|
|
|
|
return res;
|
|
}
|
|
|
|
/* pick the oldest buffer from the pads and push it */
|
|
static GstFlowReturn
|
|
gst_avi_mux_do_one_buffer (GstAviMux * avimux)
|
|
{
|
|
GstAviPad *avipad, *best_pad;
|
|
GSList *node;
|
|
GstBuffer *buffer;
|
|
GstClockTime time, best_time;
|
|
|
|
node = avimux->sinkpads;
|
|
best_pad = NULL;
|
|
best_time = GST_CLOCK_TIME_NONE;
|
|
for (; node; node = node->next) {
|
|
avipad = (GstAviPad *) node->data;
|
|
|
|
if (!avipad->collect)
|
|
continue;
|
|
|
|
buffer = gst_collect_pads_peek (avimux->collect, avipad->collect);
|
|
if (!buffer)
|
|
continue;
|
|
time = GST_BUFFER_TIMESTAMP (buffer);
|
|
gst_buffer_unref (buffer);
|
|
|
|
/* invalid timestamp buffers pass first,
|
|
* these are probably initialization buffers */
|
|
if (best_pad == NULL || !GST_CLOCK_TIME_IS_VALID (time)
|
|
|| (GST_CLOCK_TIME_IS_VALID (best_time) && time < best_time)) {
|
|
best_pad = avipad;
|
|
best_time = time;
|
|
}
|
|
}
|
|
|
|
if (best_pad) {
|
|
GST_LOG_OBJECT (avimux, "selected pad %s with time %" GST_TIME_FORMAT,
|
|
GST_PAD_NAME (best_pad->collect->pad), GST_TIME_ARGS (best_time));
|
|
|
|
return gst_avi_mux_do_buffer (avimux, best_pad);
|
|
} else {
|
|
/* simply finish off the file and send EOS */
|
|
gst_avi_mux_stop_file (avimux);
|
|
gst_pad_push_event (avimux->srcpad, gst_event_new_eos ());
|
|
return GST_FLOW_UNEXPECTED;
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_avi_mux_collect_pads (GstCollectPads * pads, GstAviMux * avimux)
|
|
{
|
|
GstFlowReturn res;
|
|
|
|
if (G_UNLIKELY (avimux->write_header)) {
|
|
if ((res = gst_avi_mux_start_file (avimux)) != GST_FLOW_OK)
|
|
return res;
|
|
}
|
|
|
|
return gst_avi_mux_do_one_buffer (avimux);
|
|
}
|
|
|
|
|
|
static void
|
|
gst_avi_mux_get_property (GObject * object,
|
|
guint prop_id, GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstAviMux *avimux;
|
|
|
|
avimux = GST_AVI_MUX (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_BIGFILE:
|
|
g_value_set_boolean (value, avimux->enable_large_avi);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_avi_mux_set_property (GObject * object,
|
|
guint prop_id, const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstAviMux *avimux;
|
|
|
|
avimux = GST_AVI_MUX (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_BIGFILE:
|
|
avimux->enable_large_avi = g_value_get_boolean (value);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_avi_mux_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstAviMux *avimux;
|
|
GstStateChangeReturn ret;
|
|
|
|
avimux = GST_AVI_MUX (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
gst_collect_pads_start (avimux->collect);
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
gst_collect_pads_stop (avimux->collect);
|
|
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:
|
|
gst_avi_mux_reset (avimux);
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
done:
|
|
return ret;
|
|
}
|