[SCM] libav/experimental: mov, 3gp, mp4 muxer by (Thomas Raivio <tjraivio at cc dot hut dot fi>)
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Jun 30 15:37:13 UTC 2013
The following commit has been merged in the experimental branch:
commit 1cb5f7fd4146193b896efe885d9c10eacfc4d326
Author: Michael Niedermayer <michaelni at gmx.at>
Date: Tue Aug 26 20:23:13 2003 +0000
mov, 3gp, mp4 muxer by (Thomas Raivio <tjraivio at cc dot hut dot fi>)
Originally committed as revision 2168 to svn://svn.ffmpeg.org/ffmpeg/trunk
diff --git a/libavformat/Makefile b/libavformat/Makefile
index e898e40..98941da 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -14,7 +14,7 @@ PPOBJS=
# mux and demuxes
OBJS+=mpeg.o mpegts.o mpegtsenc.o ffm.o crc.o img.o raw.o rm.o \
avienc.o avidec.o wav.o swf.o au.o gif.o mov.o mpjpeg.o dv.o \
- yuv4mpeg.o 4xm.o flvenc.o flvdec.o
+ yuv4mpeg.o 4xm.o flvenc.o flvdec.o movenc.o
ifeq ($(CONFIG_RISKY),yes)
OBJS+= asf.o
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index 6d7064c..b49d319 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -45,6 +45,7 @@ void av_register_all(void)
au_init();
gif_init();
mov_init();
+ movenc_init();
jpeg_init();
dv_init();
fourxm_init();
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index ef70029..1915146 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -334,6 +334,9 @@ int swf_init(void);
/* mov.c */
int mov_init(void);
+/* movenc.c */
+int movenc_init(void);
+
/* flvenc.c */
int flvenc_init(void);
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
new file mode 100644
index 0000000..ca03c4a
--- /dev/null
+++ b/libavformat/movenc.c
@@ -0,0 +1,857 @@
+/*
+ * MOV, 3GP, MP4 encoder.
+ * Copyright (c) 2003 Thomas Raivio.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include "avformat.h"
+#include "avio.h"
+#include <time.h>
+
+/*
+ * Limitations
+ * - Currently supports h.263, MPEG4 video codecs, and AMR audio codec.
+ */
+
+#define MOV_INDEX_CLUSTER_SIZE 16384
+#define globalTimescale 1000
+
+typedef struct MOVIentry {
+ unsigned int flags, pos, len;
+ unsigned int entries;
+} MOVIentry;
+
+typedef struct MOVIndex {
+ int entry;
+ int samples;
+ int mdat_size;
+ offset_t mdat_pos;
+ int ents_allocated;
+ long timescale;
+ long time;
+ long frameDuration;
+ long sampleDelta;
+ int trackID;
+ AVCodecContext *enc;
+
+ int vosLen;
+ char *vosData;
+ MOVIentry** cluster;
+} MOVTrack;
+
+typedef struct {
+ long time;
+ int nb_streams;
+ offset_t movi_list;
+ long timescale;
+ MOVTrack tracks[MAX_STREAMS];
+} MOVContext;
+
+void writeSize (ByteIOContext *pb, int pos, int size)
+{
+ long curpos = url_ftell(pb);
+ url_fseek(pb, pos, SEEK_SET);
+ put_be32(pb, size); /* rewrite size */
+ url_fseek(pb, curpos, SEEK_SET);
+}
+
+int mov_write_stco_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int i;
+ put_be32(pb, 16+track->entry*4); /* size */
+ put_tag(pb, "stco");
+ put_be32(pb, 0); /* version & flags */
+ put_be32(pb, track->entry); /* entry count */
+ for (i=0; i<track->entry; i++) {
+ int cl = i / MOV_INDEX_CLUSTER_SIZE;
+ int id = i % MOV_INDEX_CLUSTER_SIZE;
+ put_be32(pb, track->cluster[cl][id].pos);
+ }
+ return 16+track->entry*4;
+}
+
+int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int i, size;
+
+ if(track->cluster[0][0].entries != 0)
+ size = 20;
+ else
+ size = 20+track->samples*4;
+ put_be32(pb, size); /* size */
+ put_tag(pb, "stsz");
+ put_be32(pb, 0); /* version & flags */
+
+ /* TODO: Ugly (and false) assumption: if we have a chunk of samples, assume
+ * all sizes are same */
+ if(track->cluster[0][0].entries != 0) {
+ int sSize = track->cluster[0][0].len/track->cluster[0][0].entries;
+ put_be32(pb, sSize); /* sample size */
+ put_be32(pb, track->samples); /* sample count */
+ }
+ else
+ {
+ put_be32(pb, 0); /* sample size */
+ put_be32(pb, track->samples); /* sample count */
+ for (i=0; i<track->samples; i++) {
+ int cl = i / MOV_INDEX_CLUSTER_SIZE;
+ int id = i % MOV_INDEX_CLUSTER_SIZE;
+ put_be32(pb, track->cluster[cl][id].len);
+ }
+ }
+ return size;
+}
+
+int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int size;
+ if(track->cluster[0][0].entries != 0)
+ size = 16+track->entry*4*3;
+ else
+ size = 0x1c;
+ put_be32(pb, size); // size
+ put_tag(pb, "stsc");
+ put_be32(pb, 0); // version & flags
+ if(track->cluster[0][0].entries != 0) {
+ int i;
+ put_be32(pb, track->entry); // entry count
+ for (i=0; i<track->entry; i++) {
+ int cl = i / MOV_INDEX_CLUSTER_SIZE;
+ int id = i % MOV_INDEX_CLUSTER_SIZE;
+ put_be32(pb, i+1); // first chunk
+ put_be32(pb, track->cluster[cl][id].entries);
+ put_be32(pb, 0x1); // sample description index
+ }
+ }
+ else {
+ put_be32(pb, 1); // entry count
+ put_be32(pb, 0x1); // first chunk
+ put_be32(pb, 0x1); // samples per chunk
+ put_be32(pb, 0x1); // sample description index
+ }
+
+ return size;
+}
+
+int mov_write_stss_tag(ByteIOContext *pb) //TRA OK
+{
+ put_be32(pb, 0x14); /* size */
+ put_tag(pb, "stss");
+ put_be32(pb, 0); /* version & flags */
+ put_be32(pb, 1); /* entry count */
+ put_be32(pb, 0x1); /* sample number */
+ return 0x14;
+}
+
+int mov_write_damr_tag(ByteIOContext *pb)
+{
+ put_be32(pb, 0x11); /* size */
+ put_tag(pb, "damr");
+ put_tag(pb, "FFMP");
+ put_byte(pb, 0);
+ put_be16(pb, 0x81ff); /* Mode set (all modes for AMR_NB) */
+ put_be16(pb, 1); /* Mode change period (no restriction) */
+ return 0x11;
+}
+
+int mov_write_samr_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int size = 0x24;
+ int pos;
+ pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ /* "samr" for AMR NB, "sawb" for AMR WB */
+ put_tag(pb, "samr");
+ put_be32(pb, 0); /* Reserved */
+ put_be16(pb, 0); /* Reserved */
+ put_be16(pb, 1); /* Data-reference index, XXX == 1 */
+ put_be32(pb, 0); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+
+ put_be16(pb, 2); /* Reserved */
+ put_be16(pb, 0x10); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be16(pb, track->timescale); /* Time scale */
+ put_be16(pb, 0); /* Reserved */
+
+ size += mov_write_damr_tag(pb);
+ writeSize (pb, pos, size);
+ return size;
+}
+
+int mov_write_d263_tag(ByteIOContext *pb)
+{
+ put_be32(pb, 0xf); /* size */
+ put_tag(pb, "d263");
+ put_tag(pb, "FFMP");
+ put_be16(pb, 0x0a);
+ put_byte(pb, 0);
+ return 0xf;
+}
+
+int mov_write_s263_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int size = 0x56;
+ int pos;
+ pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "s263");
+ put_be32(pb, 0); /* Reserved */
+ put_be16(pb, 0); /* Reserved */
+ put_be16(pb, 1); /* Data-reference index */
+ put_be32(pb, 0); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be16(pb, track->enc->width); /* Video width */
+ put_be16(pb, track->enc->height); /* Video height */
+ put_be32(pb, 0x00480000); /* Reserved */
+ put_be32(pb, 0x00480000); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be16(pb, 1); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be32(pb, 0); /* Reserved */
+ put_be16(pb, 0x18); /* Reserved */
+ put_be16(pb, 0xffff); /* Reserved */
+ size += mov_write_d263_tag(pb);
+ writeSize (pb, pos, size);
+ return size;
+}
+
+static unsigned int esdsLength(unsigned int len)
+{
+ unsigned int result = 0;
+ unsigned char b = len & 0x7f;
+ result += b;
+ b = (len >> 8) & 0x7f;
+ result += (b + 0x80) << 8;
+ b = (len >> 16) & 0x7f;
+ result += (b + 0x80) << 16;
+ b = (len >> 24) & 0x7f;
+ result += (b + 0x80) << 24;
+ return result;
+}
+
+int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track) // Basic
+{
+ put_be32(pb, track->vosLen+18+14+17);
+ put_tag(pb, "esds");
+ put_be32(pb, 0); // Version
+
+ put_byte(pb, 0x03); // tag = ES_DescriptorTag
+ put_be32(pb, esdsLength(track->vosLen+18+14)); // Length
+ put_be16(pb, 0x0001); // ID (= 1)
+ put_byte(pb, 0x00); // flags (= no flags)
+
+// Decoderconfigdescriptor = 4
+ put_byte(pb, 0x04); // tag = DecoderConfigDescriptor
+ put_be32(pb, esdsLength(track->vosLen+18)); // Length
+ put_byte(pb, 0x20); // Object type indication (Visual 14496-2)
+ put_byte(pb, 0x11); // flags (= Visualstream)
+ put_byte(pb, 0x0); // Buffersize DB (24 bits)
+ put_be16(pb, 0x0dd2); // Buffersize DB
+
+ // TODO: find real values for these
+ put_be32(pb, 0x0002e918); // maxbitrate
+ put_be32(pb, 0x00017e6b); // avg bitrate
+
+// Decoderspecific info Tag = 5
+ put_byte(pb, 0x05); // tag = Decoderspecific info
+ put_be32(pb, esdsLength(track->vosLen)); // length
+ put_buffer(pb, track->vosData, track->vosLen);
+
+ put_byte(pb, 0x06);
+ put_be32(pb, esdsLength(1)); // length
+ put_byte(pb, 0x02);
+ return track->vosLen+18+14+17;
+}
+
+int mov_write_mp4v_tag(ByteIOContext *pb, MOVTrack* track) // Basic
+{
+ put_be32(pb, 194);
+ put_tag(pb, "mp4v");
+ put_be32(pb, 0); // Reserved
+ put_be16(pb, 0); // Reserved
+ put_be16(pb, 1); // Data-reference index
+ put_be32(pb, 0); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be16(pb, track->enc->width); // Width
+ put_be16(pb, track->enc->height); // Height
+ put_be32(pb, 0x00480000); // Reserved
+ put_be32(pb, 0x00480000); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be16(pb, 1); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be32(pb, 0); // Reserved
+ put_be16(pb, 24); // Reserved
+ put_be16(pb, 0xFFFF); // Reserved
+ mov_write_esds_tag(pb, track);
+ return 194;
+}
+
+int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int size = 16;
+ int pos;
+ pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "stsd");
+ put_be32(pb, 0); /* version & flags */
+ put_be32(pb, 1); /* entry count */
+ if (track->enc->codec_type == CODEC_TYPE_VIDEO) {
+ if (track->enc->codec_id == CODEC_ID_H263)
+ size += mov_write_s263_tag(pb, track);
+ else if (track->enc->codec_id == CODEC_ID_MPEG4)
+ size += mov_write_mp4v_tag(pb, track);
+ }
+ else if (track->enc->codec_type == CODEC_TYPE_AUDIO) {
+ if (track->enc->codec_id == CODEC_ID_AMR_NB)
+ size += mov_write_samr_tag(pb, track);
+ }
+ writeSize (pb, pos, size);
+ return size;
+}
+
+int mov_write_stts_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ put_be32(pb, 0x18); /* size */
+ put_tag(pb, "stts");
+ put_be32(pb, 0); /* version & flags */
+ put_be32(pb, 1); /* entry count */
+
+ put_be32(pb, track->samples); /* sample count */
+ put_be32(pb, track->sampleDelta); /* sample delta */
+ return 0x18;
+}
+
+int mov_write_dref_tag(ByteIOContext *pb)
+{
+ put_be32(pb, 28); /* size */
+ put_tag(pb, "dref");
+ put_be32(pb, 0); /* version & flags */
+ put_be32(pb, 1); /* entry count */
+
+ put_be32(pb, 0xc); /* size */
+ put_tag(pb, "url ");
+ put_be32(pb, 1); /* version & flags */
+
+ return 28;
+}
+
+int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int size = 8;
+ int pos;
+ pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "stbl");
+ size += mov_write_stsd_tag(pb, track);
+ size += mov_write_stts_tag(pb, track);
+ if (track->enc->codec_type == CODEC_TYPE_VIDEO)
+ size += mov_write_stss_tag(pb);
+ size += mov_write_stsc_tag(pb, track);
+ size += mov_write_stsz_tag(pb, track);
+ size += mov_write_stco_tag(pb, track);
+ writeSize (pb, pos, size);
+ return size;
+}
+
+int mov_write_dinf_tag(ByteIOContext *pb)
+{
+ int size = 8;
+ int pos;
+ pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "dinf");
+ size += mov_write_dref_tag(pb);
+ writeSize (pb, pos, size);
+ return size;
+}
+
+int mov_write_smhd_tag(ByteIOContext *pb)
+{
+ put_be32(pb, 16); /* size */
+ put_tag(pb, "smhd");
+ put_be32(pb, 0); /* version & flags */
+ put_be16(pb, 0); /* reserved (balance, normally = 0) */
+ put_be16(pb, 0); /* reserved */
+ return 16;
+}
+
+int mov_write_vmhd_tag(ByteIOContext *pb)
+{
+ put_be32(pb, 0x14); /* size (always 0x14) */
+ put_tag(pb, "vmhd");
+ put_be32(pb, 0x01); /* version & flags */
+ put_be64(pb, 0); /* reserved (graphics mode = copy) */
+ return 0x14;
+}
+
+int mov_write_minf_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int size = 8;
+ int pos;
+ pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "minf");
+ if(track->enc->codec_type == CODEC_TYPE_VIDEO)
+ size += mov_write_vmhd_tag(pb);
+ else
+ size += mov_write_smhd_tag(pb);
+ size += mov_write_dinf_tag(pb);
+ size += mov_write_stbl_tag(pb, track);
+ writeSize (pb, pos, size);
+ return size;
+}
+
+int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int size = 0;
+ size = 45;
+ put_be32(pb, size); /* size */
+ put_tag(pb, "hdlr");
+ put_be32(pb, 0); /* Version & flags */
+ put_be32(pb, 0); /* reserved */
+ if(track->enc->codec_type == CODEC_TYPE_VIDEO)
+ put_tag(pb, "vide"); /* handler type */
+ else
+ put_tag(pb, "soun"); /* handler type */
+ put_byte(pb, 0); /* reserved */
+ put_byte(pb, 0); /* reserved */
+ put_byte(pb, 0); /* reserved */
+ put_byte(pb, 0); /* reserved */
+ put_byte(pb, 0); /* reserved */
+ put_byte(pb, 0); /* reserved */
+ put_byte(pb, 0); /* reserved */
+ put_byte(pb, 0); /* reserved */
+ put_byte(pb, 0); /* reserved */
+ put_byte(pb, 0); /* reserved */
+ put_byte(pb, 0); /* reserved */
+ put_byte(pb, 0); /* reserved */
+ if(track->enc->codec_type == CODEC_TYPE_VIDEO)
+ put_buffer(pb, "VideoHandler", 13);
+ else
+ put_buffer(pb, "SoundHandler", 13);
+ return size;
+}
+
+int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ put_be32(pb, 32); /* size */
+ put_tag(pb, "mdhd");
+ put_be32(pb, 0); /* Version & flags */
+ put_be32(pb, track->time); /* creation time */
+ put_be32(pb, track->time); /* modification time */
+ put_be32(pb, track->timescale); /* time scale */
+
+ put_be32(pb, track->timescale*track->entry*track->frameDuration/globalTimescale); /* duration */
+ put_be16(pb, 0); /* language, 0 = english */
+ put_be16(pb, 0); /* reserved (quality) */
+ return 32;
+}
+
+int mov_write_mdia_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int size = 8;
+ int pos;
+ pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "mdia");
+ size += mov_write_mdhd_tag(pb, track);
+ size += mov_write_hdlr_tag(pb, track);
+ size += mov_write_minf_tag(pb, track);
+ writeSize (pb, pos, size);
+ return size;
+}
+
+int mov_write_tkhd_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ put_be32(pb, 0x5c); /* size (always 0x5c) */
+ put_tag(pb, "tkhd");
+ put_be32(pb, 1); /* version & flags (track enabled) */
+ put_be32(pb, track->time); /* creation time */
+ put_be32(pb, track->time); /* modification time */
+ put_be32(pb, track->trackID); /* track-id */
+ put_be32(pb, 0); /* reserved */
+ put_be32(pb, track->entry*track->frameDuration); /* duration */
+
+ put_be32(pb, 0); /* reserved */
+ put_be32(pb, 0); /* reserved */
+ put_be32(pb, 0x0); /* reserved (Layer & Alternate group) */
+ /* Volume, only for audio */
+ if(track->enc->codec_type == CODEC_TYPE_AUDIO)
+ put_be16(pb, 0x0100);
+ else
+ put_be16(pb, 0);
+ put_be16(pb, 0); /* reserved */
+
+ /* Matrix structure */
+ put_be32(pb, 0x00010000); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x00010000); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x40000000); /* reserved */
+
+ /* Track width and height, for visual only */
+ if(track->enc->codec_type == CODEC_TYPE_VIDEO) {
+ put_be32(pb, 0x01400000);
+ put_be32(pb, 0x00f00000);
+ }
+ else {
+ put_be32(pb, 0);
+ put_be32(pb, 0);
+ }
+ return 0x5c;
+}
+
+int mov_write_trak_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int size = 8;
+ int pos;
+ pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "trak");
+ size += mov_write_tkhd_tag(pb, track);
+ size += mov_write_mdia_tag(pb, track);
+ writeSize (pb, pos, size);
+ return size;
+}
+
+/* TODO: Not sorted out, but not necessary either */
+int mov_write_iods_tag(ByteIOContext *pb, MOVContext *mov)
+{
+ put_be32(pb, 0x15); /* size */
+ put_tag(pb, "iods");
+ put_be32(pb, 0); /* version & flags */
+ put_be16(pb, 0x1007);
+ put_byte(pb, 0);
+ put_be16(pb, 0x4fff);
+ put_be16(pb, 0xfffe);
+ put_be16(pb, 0x01ff);
+ return 0x15;
+}
+
+int mov_write_mvhd_tag(ByteIOContext *pb, MOVContext *mov)
+{
+ int maxTrackID = 1, maxTrackLen = 0, i;
+
+ put_be32(pb, 0x6c); /* size (always 0x6c) */
+ put_tag(pb, "mvhd");
+ put_be32(pb, 0); /* version & flags */
+ put_be32(pb, mov->time); /* creation time */
+ put_be32(pb, mov->time); /* modification time */
+ put_be32(pb, mov->timescale); /* timescale */
+ for (i=0; i<MAX_STREAMS; i++) {
+ if(mov->tracks[i].entry > 0) {
+ if(maxTrackLen < mov->tracks[i].entry*mov->tracks[i].frameDuration)
+ maxTrackLen = mov->tracks[i].entry*mov->tracks[i].frameDuration;
+ if(maxTrackID < mov->tracks[i].trackID)
+ maxTrackID = mov->tracks[i].trackID;
+ }
+ }
+ put_be32(pb, maxTrackLen); /* duration of longest track */
+
+ put_be32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
+ put_be16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
+ put_be16(pb, 0); /* reserved */
+ put_be32(pb, 0); /* reserved */
+ put_be32(pb, 0); /* reserved */
+
+ /* Matrix structure */
+ put_be32(pb, 0x00010000); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x00010000); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x0); /* reserved */
+ put_be32(pb, 0x40000000); /* reserved */
+
+ put_be32(pb, 0); /* reserved (preview time) */
+ put_be32(pb, 0); /* reserved (preview duration) */
+ put_be32(pb, 0); /* reserved (poster time) */
+ put_be32(pb, 0); /* reserved (selection time) */
+ put_be32(pb, 0); /* reserved (selection duration) */
+ put_be32(pb, 0); /* reserved (current time) */
+ put_be32(pb, maxTrackID+1); /* Next track id */
+ return 0x6c;
+}
+
+int mov_write_moov_tag(ByteIOContext *pb, MOVContext *mov)
+{
+ int pos, size = 8, i;
+ pos = url_ftell(pb);
+ put_be32(pb, 0); /* size placeholder*/
+ put_tag(pb, "moov");
+ mov->timescale = globalTimescale;
+
+ for (i=0; i<MAX_STREAMS; i++) {
+ if(mov->tracks[i].entry > 0) {
+ if(mov->tracks[i].enc->codec_type == CODEC_TYPE_VIDEO) {
+ mov->tracks[i].timescale = globalTimescale;
+ mov->tracks[i].sampleDelta = mov->tracks[i].frameDuration =
+ globalTimescale*mov->tracks[i].enc->frame_rate_base/mov->tracks[i].enc->frame_rate;
+ }
+ else if(mov->tracks[i].enc->codec_type == CODEC_TYPE_AUDIO) {
+ /* If AMR, track timescale = 8000, AMR_WB = 16000 */
+ if(mov->tracks[i].enc->codec_id == CODEC_ID_AMR_NB) {
+ mov->tracks[i].frameDuration = 20;
+ mov->tracks[i].sampleDelta = 160;
+ mov->tracks[i].timescale = 8000;
+ }
+ else {
+ mov->tracks[i].timescale = globalTimescale;
+ mov->tracks[i].frameDuration =
+ globalTimescale*mov->tracks[i].enc->frame_rate_base/mov->tracks[i].enc->frame_rate;
+ }
+ }
+ mov->tracks[i].time = mov->time;
+ mov->tracks[i].trackID = i+1;
+ }
+ }
+
+ size += mov_write_mvhd_tag(pb, mov);
+ //size += mov_write_iods_tag(pb, mov);
+ for (i=0; i<MAX_STREAMS; i++) {
+ if(mov->tracks[i].entry > 0) {
+ size += mov_write_trak_tag(pb, &(mov->tracks[i]));
+ }
+ }
+
+ writeSize (pb, pos, size);
+
+ return size;
+}
+
+int mov_write_mdat_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ track->mdat_pos = url_ftell(pb);
+ put_be32(pb, 0); /* size placeholder*/
+ put_tag(pb, "mdat");
+ return 0;
+}
+
+/* TODO: This needs to be more general */
+int mov_write_ftyp_tag(ByteIOContext *pb)
+{
+ put_be32(pb, 0x14 ); /* size */
+ put_tag(pb, "ftyp");
+ put_tag(pb, "3gp4");
+ put_be32(pb, 0x200 );
+ put_tag(pb, "3gp4");
+ return 0x14;
+}
+
+static int mov_write_header(AVFormatContext *s)
+{
+ ByteIOContext *pb = &s->pb;
+
+ /* write ftyp */
+ mov_write_ftyp_tag(pb);
+
+ put_flush_packet(pb);
+
+ return 0;
+}
+
+static int Timestamp() {
+ time_t ltime;
+ time ( <ime );
+ return ltime+(24107*86400);
+}
+
+static int mov_write_packet(AVFormatContext *s, int stream_index,
+ uint8_t *buf, int size, int force_pts)
+{
+ MOVContext *mov = s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ AVCodecContext *enc;
+
+ enc = &s->streams[stream_index]->codec;
+ if (!url_is_streamed(&s->pb)) {
+ MOVTrack* trk = &mov->tracks[stream_index];
+ int sampleCount = 0;
+
+ /* We must find out how many AMR blocks there are in one packet */
+ if(enc->codec_type == CODEC_TYPE_AUDIO &&
+ enc->codec_id == CODEC_ID_AMR_NB) {
+ static uint16_t packed_size[16] = {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 0};
+ int len = 0;
+
+ while(len < size && sampleCount < 100) {
+ len += packed_size[(buf[len] >> 3) & 0x0F];
+ sampleCount++;
+ }
+ }
+ /* TODO: Is there some other way to get VOS block from MPEG4 stream? */
+ if(enc->codec_type == CODEC_TYPE_VIDEO &&
+ enc->codec_id == CODEC_ID_MPEG4 &&
+ trk->vosLen == 0)
+ {
+ int index = 0;
+ int vosStart = 0;
+ while(index < size) {
+ if(buf[index] == 0 && buf[index+1] == 0 && buf[index+2] == 1) {
+ index+=3;
+ if(buf[index] == 0xB6) {
+ if(vosStart != 0) {
+ trk->vosLen = index-3 - (vosStart-3);
+ trk->vosData = av_malloc(trk->vosLen+2);
+ memcpy(trk->vosData, (char *)&buf[vosStart-3], trk->vosLen);
+ break;
+ }
+ }
+ else if(buf[index] == 0xb0) {
+ vosStart = index;
+ }
+ }
+ index++;
+ }
+ }
+
+ int cl = trk->entry / MOV_INDEX_CLUSTER_SIZE;
+ int id = trk->entry % MOV_INDEX_CLUSTER_SIZE;
+
+ if (trk->ents_allocated <= trk->entry) {
+ trk->cluster = av_realloc(trk->cluster, (cl+1)*sizeof(void*));
+ if (!trk->cluster)
+ return -1;
+ trk->cluster[cl] = av_malloc(MOV_INDEX_CLUSTER_SIZE*sizeof(MOVIentry));
+ if (!trk->cluster[cl])
+ return -1;
+ trk->ents_allocated += MOV_INDEX_CLUSTER_SIZE;
+ }
+ if(stream_index == 0 && trk->entry == 0) {
+ mov_write_mdat_tag(pb, trk);
+ mov->time = Timestamp();
+ }
+ trk->cluster[cl][id].pos = url_ftell(pb) - mov->movi_list;
+ trk->cluster[cl][id].len = size;
+ trk->cluster[cl][id].entries = sampleCount;
+ trk->enc = enc;
+ trk->entry++;
+ if(sampleCount == 0)
+ trk->samples++;
+ else
+ trk->samples += sampleCount;
+ trk->mdat_size += size;
+ }
+ put_buffer(pb, buf, size);
+
+ put_flush_packet(pb);
+ return 0;
+}
+
+static int mov_write_trailer(AVFormatContext *s)
+{
+ MOVContext *mov = s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ int res = 0;
+ int i, j;
+ offset_t file_size;
+
+ file_size = url_ftell(pb);
+ j = 0;
+
+ /* Write size of mdat tag */
+ for (i=0; i<MAX_STREAMS; i++) {
+ if(mov->tracks[i].ents_allocated > 0) {
+ j += mov->tracks[i].mdat_size;
+ }
+ }
+ url_fseek(pb, mov->tracks[0].mdat_pos, SEEK_SET);
+ put_be32(pb, j+8);
+ url_fseek(pb, file_size, SEEK_SET);
+
+ mov_write_moov_tag(pb, mov);
+
+ for (i=0; i<MAX_STREAMS; i++) {
+ for (j=0; j<mov->tracks[i].ents_allocated/MOV_INDEX_CLUSTER_SIZE; j++) {
+ av_free(mov->tracks[i].cluster[j]);
+ }
+ av_free(mov->tracks[i].cluster);
+ mov->tracks[i].cluster = NULL;
+ mov->tracks[i].ents_allocated = mov->tracks[i].entry = 0;
+ }
+ put_flush_packet(pb);
+
+ return res;
+}
+
+static AVOutputFormat mov_oformat = {
+ "mov",
+ "mov format",
+ NULL,
+ "mov",
+ sizeof(MOVContext),
+ CODEC_ID_MP2,
+ CODEC_ID_SVQ1,
+ mov_write_header,
+ mov_write_packet,
+ mov_write_trailer,
+};
+
+static AVOutputFormat _3gp_oformat = {
+ "3gp",
+ "3gp format",
+ NULL,
+ "3gp",
+ sizeof(MOVContext),
+ CODEC_ID_AMR_NB,
+ CODEC_ID_H263,
+ mov_write_header,
+ mov_write_packet,
+ mov_write_trailer,
+};
+
+static AVOutputFormat mp4_oformat = {
+ "mp4",
+ "mp4 format",
+ NULL,
+ "mp4",
+ sizeof(MOVContext),
+ CODEC_ID_AAC,
+ CODEC_ID_MPEG4,
+ mov_write_header,
+ mov_write_packet,
+ mov_write_trailer,
+};
+
+int movenc_init(void)
+{
+ av_register_output_format(&mov_oformat);
+ av_register_output_format(&_3gp_oformat);
+ av_register_output_format(&mp4_oformat);
+ return 0;
+}
--
Libav/FFmpeg packaging
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