gst/isomp4/gstqtmuxmap.c - mtk-gst-plugins-good-debian - Git at Google

 /* Quicktime muxer plugin for GStreamer
  * Copyright (C) 2008 Thiago Sousa Santos <thiagoss@embedded.ufcg.edu.br>
  * Copyright (C) 2008 Mark Nauwelaerts <mnauw@users.sf.net>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public
  * License along with this library; if not, write to the
  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 /*
  * Unless otherwise indicated, Source Code is licensed under MIT license.
  * See further explanation attached in License Statement (distributed in the file
  * LICENSE).
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
  * this software and associated documentation files (the "Software"), to deal in
  * the Software without restriction, including without limitation the rights to
  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
  * of the Software, and to permit persons to whom the Software is furnished to do
  * so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in all
  * copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */

 #include "gstqtmuxmap.h"
 #include "fourcc.h"

 /* static info related to various format */

 #define COMMON_VIDEO_CAPS \
   "width = (int) [ 16, MAX ], " \
   "height = (int) [ 16, MAX ]"

 #define COMMON_VIDEO_CAPS_NO_FRAMERATE \
   "width = (int) [ 16, MAX ], " \
   "height = (int) [ 16, MAX ] "

 #define H263_CAPS \
   "video/x-h263, " \
   COMMON_VIDEO_CAPS

 #define H264_CAPS \
   "video/x-h264, " \
   "stream-format = (string) avc, " \
   "alignment = (string) au, " \
   COMMON_VIDEO_CAPS

 #define MPEG4V_CAPS \
   "video/mpeg, " \
   "mpegversion = (int) 4, "\
   "systemstream = (boolean) false, " \
   COMMON_VIDEO_CAPS "; " \
   "video/x-divx, " \
   "divxversion = (int) 5, "\
   COMMON_VIDEO_CAPS

 #define SVQ_CAPS \
   "video/x-svq, " \
   "svqversion = (int) 3, " \
   COMMON_VIDEO_CAPS

 #define COMMON_AUDIO_CAPS(c, r) \
   "channels = (int) [ 1, " G_STRINGIFY (c) " ], " \
   "rate = (int) [ 1, " G_STRINGIFY (r) " ]"

 #define PCM_CAPS \
   "audio/x-raw, " \
   "format = (string) { S8, U8 }, " \
   "layout = (string) interleaved, " \
   COMMON_AUDIO_CAPS (2, MAX) "; " \
   "audio/x-raw, " \
   "format = (string) { S16LE, S16BE }, " \
   "layout = (string) interleaved, " \
   COMMON_AUDIO_CAPS (2, MAX)

 #define PCM_CAPS_FULL \
   PCM_CAPS "; " \
   "audio/x-raw, " \
   "format = (string) { S24LE, S24BE }, " \
   "layout = (string) interleaved, " \
   COMMON_AUDIO_CAPS (2, MAX) "; " \
   "audio/x-raw, " \
   "format = (string) { S32LE, S32BE }, " \
   "layout = (string) interleaved, " \
   COMMON_AUDIO_CAPS (2, MAX)

 #define MP3_CAPS \
   "audio/mpeg, " \
   "mpegversion = (int) 1, " \
   "layer = (int) 3, " \
   COMMON_AUDIO_CAPS (2, MAX)

 #define AAC_CAPS \
   "audio/mpeg, " \
   "mpegversion = (int) 4, " \
   "stream-format = (string) raw, " \
   COMMON_AUDIO_CAPS (8, MAX)

 #define AC3_CAPS \
   "audio/x-ac3, " \
   COMMON_AUDIO_CAPS (6, MAX)

 #define AMR_CAPS \
   "audio/AMR, " \
   "rate = (int) 8000, " \
   "channels = [ 1, 2 ]; " \
   "audio/AMR-WB, " \
   "rate = (int) 16000, " \
   "channels = [ 1, 2 ] "

 #define ADPCM_CAPS  \
   "audio/x-adpcm, " \
   "layout = (string)dvi, " \
   "block_align = (int)[64, 8096], " \
   COMMON_AUDIO_CAPS(2, MAX)

 #define ALAC_CAPS \
   "audio/x-alac, " \
   COMMON_AUDIO_CAPS(2, MAX)

 #define TEXT_UTF8 \
   "text/x-raw, " \
   "format=(string)utf8"

 /* FIXME 0.11 - take a look at bugs #580005 and #340375 */
 GstQTMuxFormatProp gst_qt_mux_format_list[] = {
   /* original QuickTime format; see Apple site (e.g. qtff.pdf) */
   {
         GST_QT_MUX_FORMAT_QT,
         GST_RANK_PRIMARY,
         "qtmux",
         "QuickTime",
         "GstQTMux",
         GST_STATIC_CAPS ("video/quicktime, variant = (string) apple; "
             "video/quicktime"),
         GST_STATIC_CAPS ("video/x-raw, "
             "format = (string) { RGB, UYVY, v210 }, "
             COMMON_VIDEO_CAPS "; "
             MPEG4V_CAPS "; "
             H263_CAPS "; "
             H264_CAPS "; "
             SVQ_CAPS "; "
             "video/x-dv, "
             "systemstream = (boolean) false, "
             COMMON_VIDEO_CAPS "; "
             "image/jpeg, "
             COMMON_VIDEO_CAPS_NO_FRAMERATE "; "
             "video/x-vp8, "
             COMMON_VIDEO_CAPS "; "
             "video/x-dirac, "
             COMMON_VIDEO_CAPS "; " "video/x-qt-part, " COMMON_VIDEO_CAPS),
         GST_STATIC_CAPS (PCM_CAPS_FULL "; "
             MP3_CAPS " ; "
             AAC_CAPS " ; "
             ADPCM_CAPS " ; "
             "audio/x-alaw, " COMMON_AUDIO_CAPS (2, MAX) "; "
             "audio/x-mulaw, " COMMON_AUDIO_CAPS (2, MAX) "; "
             AMR_CAPS " ; " ALAC_CAPS),
       GST_STATIC_CAPS (TEXT_UTF8)}
   ,
   /* ISO 14496-14: mp42 as ISO base media extension
    * (supersedes original ISO 144996-1 mp41) */
   {
         GST_QT_MUX_FORMAT_MP4,
         GST_RANK_PRIMARY,
         "mp4mux",
         "MP4",
         "GstMP4Mux",
         GST_STATIC_CAPS ("video/quicktime, variant = (string) iso"),
         GST_STATIC_CAPS (MPEG4V_CAPS "; " H264_CAPS ";"
             "video/x-mp4-part," COMMON_VIDEO_CAPS),
         GST_STATIC_CAPS (MP3_CAPS "; " AAC_CAPS " ; " AC3_CAPS " ; " ALAC_CAPS),
       GST_STATIC_CAPS (TEXT_UTF8)}
   ,
   /* Microsoft Smooth Streaming fmp4/isml */
   /* TODO add WMV/WMA support */
   {
         GST_QT_MUX_FORMAT_ISML,
         GST_RANK_PRIMARY,
         "ismlmux",
         "ISML",
         "GstISMLMux",
         GST_STATIC_CAPS ("video/quicktime, variant = (string) iso-fragmented"),
         GST_STATIC_CAPS (MPEG4V_CAPS "; " H264_CAPS),
         GST_STATIC_CAPS (MP3_CAPS "; " AAC_CAPS),
       GST_STATIC_CAPS_NONE}
   ,
   /* 3GPP Technical Specification 26.244 V7.3.0
    * (extended in 3GPP2 File Formats for Multimedia Services) */
   {
         GST_QT_MUX_FORMAT_3GP,
         GST_RANK_PRIMARY,
         "3gppmux",
         "3GPP",
         "Gst3GPPMux",
         GST_STATIC_CAPS ("video/quicktime, variant = (string) 3gpp"),
         GST_STATIC_CAPS (H263_CAPS "; " MPEG4V_CAPS "; " H264_CAPS),
         GST_STATIC_CAPS (AMR_CAPS "; " MP3_CAPS "; " AAC_CAPS "; " AC3_CAPS),
       GST_STATIC_CAPS (TEXT_UTF8)}
   ,
   /* ISO 15444-3: Motion-JPEG-2000 (also ISO base media extension) */
   {
         GST_QT_MUX_FORMAT_MJ2,
         GST_RANK_PRIMARY,
         "mj2mux",
         "MJ2",
         "GstMJ2Mux",
         GST_STATIC_CAPS ("video/mj2"),
         GST_STATIC_CAPS ("image/x-j2c, " COMMON_VIDEO_CAPS "; "
             "image/x-jpc, " COMMON_VIDEO_CAPS),
         GST_STATIC_CAPS (PCM_CAPS),
       GST_STATIC_CAPS_NONE}
   ,
   {
         GST_QT_MUX_FORMAT_NONE,
       }
 };

 /* pretty static, but may turn out needed a few times */
 AtomsTreeFlavor
 gst_qt_mux_map_format_to_flavor (GstQTMuxFormat format)
 {
   if (format == GST_QT_MUX_FORMAT_QT)
     return ATOMS_TREE_FLAVOR_MOV;
   else if (format == GST_QT_MUX_FORMAT_3GP)
     return ATOMS_TREE_FLAVOR_3GP;
   else if (format == GST_QT_MUX_FORMAT_ISML)
     return ATOMS_TREE_FLAVOR_ISML;
   else
     return ATOMS_TREE_FLAVOR_ISOM;
 }

 static void
 gst_qt_mux_map_check_tracks (AtomMOOV * moov, gint * _video, gint * _audio,
     gboolean * _has_h264)
 {
   GList *it;
   gint video = 0, audio = 0;
   gboolean has_h264 = FALSE;

   for (it = moov->traks; it != NULL; it = g_list_next (it)) {
     AtomTRAK *track = it->data;

     if (track->is_video) {
       video++;
       if (track->is_h264)
         has_h264 = TRUE;
     } else
       audio++;
   }

   if (_video)
     *_video = video;
   if (_audio)
     *_audio = audio;
   if (_has_h264)
     *_has_h264 = has_h264;
 }

 /* pretty static, but possibly dynamic format info */

 /* notes:
  * - avc1 brand is not used, since the specific extensions indicated by it
  *   are not used (e.g. sample groupings, etc)
  * - TODO: maybe even more 3GPP brand fine-tuning ??
  *   (but that might need ftyp rewriting at the end) */
 void
 gst_qt_mux_map_format_to_header (GstQTMuxFormat format, GstBuffer ** _prefix,
     guint32 * _major, guint32 * _version, GList ** _compatible, AtomMOOV * moov,
     GstClockTime longest_chunk, gboolean faststart)
 {
   static const guint32 qt_brands[] = { 0 };
   static const guint32 mp4_brands[] =
       { FOURCC_mp41, FOURCC_isom, FOURCC_iso2, 0 };
   static const guint32 isml_brands[] = { FOURCC_iso2, 0 };
   static const guint32 gpp_brands[] = { FOURCC_isom, FOURCC_iso2, 0 };
   static const guint32 mjp2_brands[] = { FOURCC_isom, FOURCC_iso2, 0 };
   static const guint8 mjp2_prefix[] =
       { 0, 0, 0, 12, 'j', 'P', ' ', ' ', 0x0D, 0x0A, 0x87, 0x0A };
   const guint32 *comp = NULL;
   guint32 major = 0, version = 0;
   GstBuffer *prefix = NULL;
   GList *result = NULL;

   g_return_if_fail (_prefix != NULL);
   g_return_if_fail (_major != NULL);
   g_return_if_fail (_version != NULL);
   g_return_if_fail (_compatible != NULL);

   switch (format) {
     case GST_QT_MUX_FORMAT_QT:
       major = FOURCC_qt__;
       comp = qt_brands;
       version = 0x20050300;
       break;
     case GST_QT_MUX_FORMAT_MP4:
       major = FOURCC_mp42;
       comp = mp4_brands;
       break;
     case GST_QT_MUX_FORMAT_ISML:
       major = FOURCC_isml;
       comp = isml_brands;
       break;
     case GST_QT_MUX_FORMAT_3GP:
     {
       gint video, audio;
       gboolean has_h264;

       gst_qt_mux_map_check_tracks (moov, &video, &audio, &has_h264);
       /* only track restriction really matters for Basic Profile */
       if (video <= 1 && audio <= 1) {
         /* it seems only newer spec knows about H264 */
         major = has_h264 ? FOURCC_3gp6 : FOURCC_3gp4;
         version = has_h264 ? 0x100 : 0x200;
       } else {
         major = FOURCC_3gg6;
         version = 0x100;
       }
       comp = gpp_brands;

       /*
        * We assume that we have chunks in dts order
        */
       if (faststart && longest_chunk <= GST_SECOND) {
         /* add progressive download profile */
         result = g_list_append (result, GUINT_TO_POINTER (FOURCC_3gr6));
       }
       break;
     }
     case GST_QT_MUX_FORMAT_MJ2:
     {
       major = FOURCC_mjp2;
       comp = mjp2_brands;
       version = 0;
       prefix = gst_buffer_new_and_alloc (sizeof (mjp2_prefix));
       gst_buffer_fill (prefix, 0, mjp2_prefix, sizeof (mjp2_prefix));
       break;
     }
     default:
       g_assert_not_reached ();
       break;
   }

   /* convert list to list, hm */
   while (comp && *comp != 0) {
     /* order matters over efficiency */
     result = g_list_append (result, GUINT_TO_POINTER (*comp));
     comp++;
   }

   *_major = major;
   *_version = version;
   *_prefix = prefix;
   *_compatible = result;

   /* TODO 3GPP may include mp42 as compatible if applicable */
   /* TODO 3GPP major brand 3gp7 if at most 1 video and audio track */
 }
	/* Quicktime muxer plugin for GStreamer
	* Copyright (C) 2008 Thiago Sousa Santos <thiagoss@embedded.ufcg.edu.br>
	* Copyright (C) 2008 Mark Nauwelaerts <mnauw@users.sf.net>
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Library General Public
	* License as published by the Free Software Foundation; either
	* version 2 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Library General Public License for more details.
	*
	* You should have received a copy of the GNU Library General Public
	* License along with this library; if not, write to the
	* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
	* Boston, MA 02110-1301, USA.
	*/
	/*
	* Unless otherwise indicated, Source Code is licensed under MIT license.
	* See further explanation attached in License Statement (distributed in the file
	* LICENSE).
	*
	* Permission is hereby granted, free of charge, to any person obtaining a copy of
	* this software and associated documentation files (the "Software"), to deal in
	* the Software without restriction, including without limitation the rights to
	* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
	* of the Software, and to permit persons to whom the Software is furnished to do
	* so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in all
	* copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	* SOFTWARE.
	*/

	#include "gstqtmuxmap.h"
	#include "fourcc.h"

	/* static info related to various format */

	#define COMMON_VIDEO_CAPS \
	"width = (int) [ 16, MAX ], " \
	"height = (int) [ 16, MAX ]"

	#define COMMON_VIDEO_CAPS_NO_FRAMERATE \
	"width = (int) [ 16, MAX ], " \
	"height = (int) [ 16, MAX ] "

	#define H263_CAPS \
	"video/x-h263, " \
	COMMON_VIDEO_CAPS

	#define H264_CAPS \
	"video/x-h264, " \
	"stream-format = (string) avc, " \
	"alignment = (string) au, " \
	COMMON_VIDEO_CAPS

	#define MPEG4V_CAPS \
	"video/mpeg, " \
	"mpegversion = (int) 4, "\
	"systemstream = (boolean) false, " \
	COMMON_VIDEO_CAPS "; " \
	"video/x-divx, " \
	"divxversion = (int) 5, "\
	COMMON_VIDEO_CAPS

	#define SVQ_CAPS \
	"video/x-svq, " \
	"svqversion = (int) 3, " \
	COMMON_VIDEO_CAPS

	#define COMMON_AUDIO_CAPS(c, r) \
	"channels = (int) [ 1, " G_STRINGIFY (c) " ], " \
	"rate = (int) [ 1, " G_STRINGIFY (r) " ]"

	#define PCM_CAPS \
	"audio/x-raw, " \
	"format = (string) { S8, U8 }, " \
	"layout = (string) interleaved, " \
	COMMON_AUDIO_CAPS (2, MAX) "; " \
	"audio/x-raw, " \
	"format = (string) { S16LE, S16BE }, " \
	"layout = (string) interleaved, " \
	COMMON_AUDIO_CAPS (2, MAX)

	#define PCM_CAPS_FULL \
	PCM_CAPS "; " \
	"audio/x-raw, " \
	"format = (string) { S24LE, S24BE }, " \
	"layout = (string) interleaved, " \
	COMMON_AUDIO_CAPS (2, MAX) "; " \
	"audio/x-raw, " \
	"format = (string) { S32LE, S32BE }, " \
	"layout = (string) interleaved, " \
	COMMON_AUDIO_CAPS (2, MAX)

	#define MP3_CAPS \
	"audio/mpeg, " \
	"mpegversion = (int) 1, " \
	"layer = (int) 3, " \
	COMMON_AUDIO_CAPS (2, MAX)

	#define AAC_CAPS \
	"audio/mpeg, " \
	"mpegversion = (int) 4, " \
	"stream-format = (string) raw, " \
	COMMON_AUDIO_CAPS (8, MAX)

	#define AC3_CAPS \
	"audio/x-ac3, " \
	COMMON_AUDIO_CAPS (6, MAX)

	#define AMR_CAPS \
	"audio/AMR, " \
	"rate = (int) 8000, " \
	"channels = [ 1, 2 ]; " \
	"audio/AMR-WB, " \
	"rate = (int) 16000, " \
	"channels = [ 1, 2 ] "

	#define ADPCM_CAPS \
	"audio/x-adpcm, " \
	"layout = (string)dvi, " \
	"block_align = (int)[64, 8096], " \
	COMMON_AUDIO_CAPS(2, MAX)

	#define ALAC_CAPS \
	"audio/x-alac, " \
	COMMON_AUDIO_CAPS(2, MAX)

	#define TEXT_UTF8 \
	"text/x-raw, " \
	"format=(string)utf8"

	/* FIXME 0.11 - take a look at bugs #580005 and #340375 */
	GstQTMuxFormatProp gst_qt_mux_format_list[] = {
	/* original QuickTime format; see Apple site (e.g. qtff.pdf) */
	{
	GST_QT_MUX_FORMAT_QT,
	GST_RANK_PRIMARY,
	"qtmux",
	"QuickTime",
	"GstQTMux",
	GST_STATIC_CAPS ("video/quicktime, variant = (string) apple; "
	"video/quicktime"),
	GST_STATIC_CAPS ("video/x-raw, "
	"format = (string) { RGB, UYVY, v210 }, "
	COMMON_VIDEO_CAPS "; "
	MPEG4V_CAPS "; "
	H263_CAPS "; "
	H264_CAPS "; "
	SVQ_CAPS "; "
	"video/x-dv, "
	"systemstream = (boolean) false, "
	COMMON_VIDEO_CAPS "; "
	"image/jpeg, "
	COMMON_VIDEO_CAPS_NO_FRAMERATE "; "
	"video/x-vp8, "
	COMMON_VIDEO_CAPS "; "
	"video/x-dirac, "
	COMMON_VIDEO_CAPS "; " "video/x-qt-part, " COMMON_VIDEO_CAPS),
	GST_STATIC_CAPS (PCM_CAPS_FULL "; "
	MP3_CAPS " ; "
	AAC_CAPS " ; "
	ADPCM_CAPS " ; "
	"audio/x-alaw, " COMMON_AUDIO_CAPS (2, MAX) "; "
	"audio/x-mulaw, " COMMON_AUDIO_CAPS (2, MAX) "; "
	AMR_CAPS " ; " ALAC_CAPS),
	GST_STATIC_CAPS (TEXT_UTF8)}
	,
	/* ISO 14496-14: mp42 as ISO base media extension
	* (supersedes original ISO 144996-1 mp41) */
	{
	GST_QT_MUX_FORMAT_MP4,
	GST_RANK_PRIMARY,
	"mp4mux",
	"MP4",
	"GstMP4Mux",
	GST_STATIC_CAPS ("video/quicktime, variant = (string) iso"),
	GST_STATIC_CAPS (MPEG4V_CAPS "; " H264_CAPS ";"
	"video/x-mp4-part," COMMON_VIDEO_CAPS),
	GST_STATIC_CAPS (MP3_CAPS "; " AAC_CAPS " ; " AC3_CAPS " ; " ALAC_CAPS),
	GST_STATIC_CAPS (TEXT_UTF8)}
	,
	/* Microsoft Smooth Streaming fmp4/isml */
	/* TODO add WMV/WMA support */
	{
	GST_QT_MUX_FORMAT_ISML,
	GST_RANK_PRIMARY,
	"ismlmux",
	"ISML",
	"GstISMLMux",
	GST_STATIC_CAPS ("video/quicktime, variant = (string) iso-fragmented"),
	GST_STATIC_CAPS (MPEG4V_CAPS "; " H264_CAPS),
	GST_STATIC_CAPS (MP3_CAPS "; " AAC_CAPS),
	GST_STATIC_CAPS_NONE}
	,
	/* 3GPP Technical Specification 26.244 V7.3.0
	* (extended in 3GPP2 File Formats for Multimedia Services) */
	{
	GST_QT_MUX_FORMAT_3GP,
	GST_RANK_PRIMARY,
	"3gppmux",
	"3GPP",
	"Gst3GPPMux",
	GST_STATIC_CAPS ("video/quicktime, variant = (string) 3gpp"),
	GST_STATIC_CAPS (H263_CAPS "; " MPEG4V_CAPS "; " H264_CAPS),
	GST_STATIC_CAPS (AMR_CAPS "; " MP3_CAPS "; " AAC_CAPS "; " AC3_CAPS),
	GST_STATIC_CAPS (TEXT_UTF8)}
	,
	/* ISO 15444-3: Motion-JPEG-2000 (also ISO base media extension) */
	{
	GST_QT_MUX_FORMAT_MJ2,
	GST_RANK_PRIMARY,
	"mj2mux",
	"MJ2",
	"GstMJ2Mux",
	GST_STATIC_CAPS ("video/mj2"),
	GST_STATIC_CAPS ("image/x-j2c, " COMMON_VIDEO_CAPS "; "
	"image/x-jpc, " COMMON_VIDEO_CAPS),
	GST_STATIC_CAPS (PCM_CAPS),
	GST_STATIC_CAPS_NONE}
	,
	{
	GST_QT_MUX_FORMAT_NONE,
	}
	};

	/* pretty static, but may turn out needed a few times */
	AtomsTreeFlavor
	gst_qt_mux_map_format_to_flavor (GstQTMuxFormat format)
	{
	if (format == GST_QT_MUX_FORMAT_QT)
	return ATOMS_TREE_FLAVOR_MOV;
	else if (format == GST_QT_MUX_FORMAT_3GP)
	return ATOMS_TREE_FLAVOR_3GP;
	else if (format == GST_QT_MUX_FORMAT_ISML)
	return ATOMS_TREE_FLAVOR_ISML;
	else
	return ATOMS_TREE_FLAVOR_ISOM;
	}

	static void
	gst_qt_mux_map_check_tracks (AtomMOOV * moov, gint * _video, gint * _audio,
	gboolean * _has_h264)
	{
	GList *it;
	gint video = 0, audio = 0;
	gboolean has_h264 = FALSE;

	for (it = moov->traks; it != NULL; it = g_list_next (it)) {
	AtomTRAK *track = it->data;

	if (track->is_video) {
	video++;
	if (track->is_h264)
	has_h264 = TRUE;
	} else
	audio++;
	}

	if (_video)
	*_video = video;
	if (_audio)
	*_audio = audio;
	if (_has_h264)
	*_has_h264 = has_h264;
	}

	/* pretty static, but possibly dynamic format info */

	/* notes:
	* - avc1 brand is not used, since the specific extensions indicated by it
	* are not used (e.g. sample groupings, etc)
	* - TODO: maybe even more 3GPP brand fine-tuning ??
	* (but that might need ftyp rewriting at the end) */
	void
	gst_qt_mux_map_format_to_header (GstQTMuxFormat format, GstBuffer ** _prefix,
	guint32 * _major, guint32 * _version, GList ** _compatible, AtomMOOV * moov,
	GstClockTime longest_chunk, gboolean faststart)
	{
	static const guint32 qt_brands[] = { 0 };
	static const guint32 mp4_brands[] =
	{ FOURCC_mp41, FOURCC_isom, FOURCC_iso2, 0 };
	static const guint32 isml_brands[] = { FOURCC_iso2, 0 };
	static const guint32 gpp_brands[] = { FOURCC_isom, FOURCC_iso2, 0 };
	static const guint32 mjp2_brands[] = { FOURCC_isom, FOURCC_iso2, 0 };
	static const guint8 mjp2_prefix[] =
	{ 0, 0, 0, 12, 'j', 'P', ' ', ' ', 0x0D, 0x0A, 0x87, 0x0A };
	const guint32 *comp = NULL;
	guint32 major = 0, version = 0;
	GstBuffer *prefix = NULL;
	GList *result = NULL;

	g_return_if_fail (_prefix != NULL);
	g_return_if_fail (_major != NULL);
	g_return_if_fail (_version != NULL);
	g_return_if_fail (_compatible != NULL);

	switch (format) {
	case GST_QT_MUX_FORMAT_QT:
	major = FOURCC_qt__;
	comp = qt_brands;
	version = 0x20050300;
	break;
	case GST_QT_MUX_FORMAT_MP4:
	major = FOURCC_mp42;
	comp = mp4_brands;
	break;
	case GST_QT_MUX_FORMAT_ISML:
	major = FOURCC_isml;
	comp = isml_brands;
	break;
	case GST_QT_MUX_FORMAT_3GP:
	{
	gint video, audio;
	gboolean has_h264;

	gst_qt_mux_map_check_tracks (moov, &video, &audio, &has_h264);
	/* only track restriction really matters for Basic Profile */
	if (video <= 1 && audio <= 1) {
	/* it seems only newer spec knows about H264 */
	major = has_h264 ? FOURCC_3gp6 : FOURCC_3gp4;
	version = has_h264 ? 0x100 : 0x200;
	} else {
	major = FOURCC_3gg6;
	version = 0x100;
	}
	comp = gpp_brands;

	/*
	* We assume that we have chunks in dts order
	*/
	if (faststart && longest_chunk <= GST_SECOND) {
	/* add progressive download profile */
	result = g_list_append (result, GUINT_TO_POINTER (FOURCC_3gr6));
	}
	break;
	}
	case GST_QT_MUX_FORMAT_MJ2:
	{
	major = FOURCC_mjp2;
	comp = mjp2_brands;
	version = 0;
	prefix = gst_buffer_new_and_alloc (sizeof (mjp2_prefix));
	gst_buffer_fill (prefix, 0, mjp2_prefix, sizeof (mjp2_prefix));
	break;
	}
	default:
	g_assert_not_reached ();
	break;
	}

	/* convert list to list, hm */
	while (comp && *comp != 0) {
	/* order matters over efficiency */
	result = g_list_append (result, GUINT_TO_POINTER (*comp));
	comp++;
	}

	*_major = major;
	*_version = version;
	*_prefix = prefix;
	*_compatible = result;

	/* TODO 3GPP may include mp42 as compatible if applicable */
	/* TODO 3GPP major brand 3gp7 if at most 1 video and audio track */
	}