/*
* MOV, 3GP, MP4 encoder.
* Copyright (c) 2003 Thomas Raivio.
+ * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
#include "avformat.h"
#include "avi.h"
#include "avio.h"
-#include <time.h>
#undef NDEBUG
#include <assert.h>
#define MOV_INDEX_CLUSTER_SIZE 16384
#define globalTimescale 1000
+#define MODE_MP4 0
+#define MODE_MOV 1
+#define MODE_3GP 2
+
typedef struct MOVIentry {
- unsigned int flags, pos, len;
- unsigned int chunkSize;
+ unsigned int flags, pos, size;
+ unsigned int samplesInChunk;
char key_frame;
unsigned int entries;
} MOVIentry;
typedef struct MOVIndex {
+ int mode;
int entry;
- int samples;
int mdat_size;
int ents_allocated;
long timescale;
long time;
- long frameCount;
long trackDuration;
- long sampleDelta;
+ long sampleCount;
+ long sampleDuration;
int hasKeyframes;
int trackID;
AVCodecContext *enc;
} MOVTrack;
typedef struct {
+ int mode;
long time;
int nb_streams;
int mdat_written;
offset_t mdat_pos;
- offset_t movi_list;
long timescale;
MOVTrack tracks[MAX_STREAMS];
} MOVContext;
+static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track);
+
//FIXME supprt 64bit varaint with wide placeholders
static int updateSize (ByteIOContext *pb, int pos)
{
return curpos - pos;
}
+/* Chunk offset atom */
static int mov_write_stco_tag(ByteIOContext *pb, MOVTrack* track)
{
int i;
return updateSize (pb, pos);
}
+/* Sample size atom */
static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack* track)
{
int equalChunks = 1;
- int i, tst = -1, oldtst = -1;
+ int i, j, entries = 0, tst = -1, oldtst = -1;
int pos = url_ftell(pb);
put_be32(pb, 0); /* size */
for (i=0; i<track->entry; i++) {
int cl = i / MOV_INDEX_CLUSTER_SIZE;
int id = i % MOV_INDEX_CLUSTER_SIZE;
- tst = track->cluster[cl][id].len;
- if(oldtst != -1 && tst != oldtst) {
- equalChunks = 0;
- break;
+ tst = track->cluster[cl][id].size/track->cluster[cl][id].entries;
+ if(oldtst != -1 && tst != oldtst) {
+ equalChunks = 0;
}
oldtst = tst;
+ entries += track->cluster[cl][id].entries;
}
- if(equalChunks ||
- track->enc->codec_type == CODEC_TYPE_AUDIO) {
- //int sSize = track->cluster[0][0].len/track->cluster[0][0].entries;
- int sSize = track->cluster[0][0].len;
+ if (equalChunks) {
+ int sSize = track->cluster[0][0].size/track->cluster[0][0].entries;
put_be32(pb, sSize); // sample size
- put_be32(pb, track->samples/track->enc->channels); // sample count
+ put_be32(pb, entries); // sample count
}
else {
put_be32(pb, 0); // sample size
- put_be32(pb, track->entry); // sample count
+ put_be32(pb, entries); // sample 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].len);
+ for ( j=0; j<track->cluster[cl][id].entries; j++) {
+ put_be32(pb, track->cluster[cl][id].size /
+ track->cluster[cl][id].entries);
+ }
}
}
return updateSize (pb, pos);
}
+/* Sample to chunk atom */
static int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack* track)
{
int index = 0, oldval = -1, i, entryPos, curpos;
for (i=0; i<track->entry; i++) {
int cl = i / MOV_INDEX_CLUSTER_SIZE;
int id = i % MOV_INDEX_CLUSTER_SIZE;
- if(oldval != track->cluster[cl][id].chunkSize)
+ if(oldval != track->cluster[cl][id].samplesInChunk)
{
put_be32(pb, i+1); // first chunk
- put_be32(pb, track->cluster[cl][id].chunkSize);
+ put_be32(pb, track->cluster[cl][id].samplesInChunk); // samples per chunk
put_be32(pb, 0x1); // sample description index
- oldval = track->cluster[cl][id].chunkSize;
+ oldval = track->cluster[cl][id].samplesInChunk;
index++;
}
}
return updateSize (pb, pos);
}
+/* Sync sample atom */
static int mov_write_stss_tag(ByteIOContext *pb, MOVTrack* track)
{
long curpos;
return 0x11;
}
-static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
+static int mov_write_wave_tag(ByteIOContext *pb, MOVTrack* track)
{
int pos = url_ftell(pb);
+
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "wave");
+
+ put_be32(pb, 12); /* size */
+ put_tag(pb, "frma");
+ put_tag(pb, "mp4a");
+
+ put_be32(pb, 12); /* size */
+ put_tag(pb, "mp4a");
+ put_be32(pb, 0);
+
+ mov_write_esds_tag(pb, track);
+
+ put_be32(pb, 12); /* size */
+ put_tag(pb, "srcq");
+ put_be32(pb, 0x40);
+
+ put_be32(pb, 8); /* size */
+ put_be32(pb, 0); /* null tag */
+
+ return updateSize (pb, pos);
+}
+
+const CodecTag codec_movaudio_tags[] = {
+ { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') },
+ { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') },
+ { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') },
+ { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') },
+ { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') },
+ { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') },
+ { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') },
+ { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') },
+ { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') },
+ { CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') },
+ { 0, 0 },
+};
+
+static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int pos = url_ftell(pb), tag;
+
put_be32(pb, 0); /* size */
- if(track->enc->codec_id == CODEC_ID_PCM_MULAW)
- put_tag(pb, "ulaw");
- else if(track->enc->codec_id == CODEC_ID_PCM_ALAW)
- put_tag(pb, "alaw");
- else if(track->enc->codec_id == CODEC_ID_ADPCM_IMA_QT)
- put_tag(pb, "ima4");
- else if(track->enc->codec_id == CODEC_ID_MACE3)
- put_tag(pb, "MAC3");
- else if(track->enc->codec_id == CODEC_ID_MACE6)
- put_tag(pb, "MAC6");
- else if(track->enc->codec_id == CODEC_ID_AAC)
- put_tag(pb, "mp4a");
- else if(track->enc->codec_id == CODEC_ID_AMR_NB)
- put_tag(pb, "samr");
+ tag = codec_get_tag(codec_movaudio_tags, track->enc->codec_id);
+ // if no mac fcc found, try with Microsoft tags
+ if (!tag)
+ {
+ int tmp = codec_get_tag(codec_wav_tags, track->enc->codec_id);
+ if (tmp)
+ tag = MKTAG('m', 's', ((tmp >> 8) & 0xff), (tmp & 0xff));
+ }
+ if (!tag)
+ put_tag(pb, " ");
else
- put_tag(pb, " ");
+ put_le32(pb, tag); // store it byteswapped
put_be32(pb, 0); /* Reserved */
put_be16(pb, 0); /* Reserved */
put_be16(pb, 1); /* Data-reference index, XXX == 1 */
- put_be32(pb, 0); /* Reserved */
+
+ /* SoundDescription */
+ if(track->mode == MODE_MOV && track->enc->codec_id == CODEC_ID_AAC)
+ put_be16(pb, 1); /* Version 1 */
+ else
+ put_be16(pb, 0); /* Version 0 */
+ put_be16(pb, 0); /* Revision level */
put_be32(pb, 0); /* Reserved */
put_be16(pb, track->enc->channels); /* Number of channels */
/* TODO: Currently hard-coded to 16-bit, there doesn't seem
- to be a good way to get number of bits of audio */
+ to be a good way to get number of bits of audio */
put_be16(pb, 0x10); /* Reserved */
put_be16(pb, 0); /* compression ID (= 0) */
put_be16(pb, 0); /* packet size (= 0) */
put_be16(pb, track->timescale); /* Time scale */
put_be16(pb, 0); /* Reserved */
+ if(track->mode == MODE_MOV && track->enc->codec_id == CODEC_ID_AAC)
+ {
+ /* SoundDescription V1 extended info */
+ put_be32(pb, track->enc->frame_size); /* Samples per packet */
+ put_be32(pb, 1536); /* Bytes per packet */
+ put_be32(pb, 2); /* Bytes per frame */
+ put_be32(pb, 2); /* Bytes per sample */
+ }
+
+ if(track->enc->codec_id == CODEC_ID_AAC) {
+ if( track->mode == MODE_MOV ) mov_write_wave_tag(pb, track);
+ else mov_write_esds_tag(pb, track);
+ }
if(track->enc->codec_id == CODEC_ID_AMR_NB)
mov_write_damr_tag(pb);
return updateSize (pb, pos);
return 0x15;
}
-static unsigned int esdsLength(unsigned int len)
+static unsigned int descrLength(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;
+ if (len < 0x00000080)
+ return 2 + len;
+ else if (len < 0x00004000)
+ return 3 + len;
+ else if(len < 0x00200000)
+ return 4 + len;
+ else
+ return 5 + len;
+}
+
+static void putDescr(ByteIOContext *pb, int tag, int size)
+{
+ uint32_t len;
+ uint8_t vals[4];
+
+ len = size;
+ vals[3] = (uint8_t)(len & 0x7f);
+ len >>= 7;
+ vals[2] = (uint8_t)((len & 0x7f) | 0x80);
+ len >>= 7;
+ vals[1] = (uint8_t)((len & 0x7f) | 0x80);
+ len >>= 7;
+ vals[0] = (uint8_t)((len & 0x7f) | 0x80);
+
+ put_byte(pb, tag); // DescriptorTag
+
+ if (size < 0x00000080)
+ {
+ put_byte(pb, vals[3]);
+ }
+ else if (size < 0x00004000)
+ {
+ put_byte(pb, vals[2]);
+ put_byte(pb, vals[3]);
+ }
+ else if (size < 0x00200000)
+ {
+ put_byte(pb, vals[1]);
+ put_byte(pb, vals[2]);
+ put_byte(pb, vals[3]);
+ }
+ else if (size < 0x10000000)
+ {
+ put_byte(pb, vals[0]);
+ put_byte(pb, vals[1]);
+ put_byte(pb, vals[2]);
+ put_byte(pb, vals[3]);
+ }
}
static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track) // Basic
{
- put_be32(pb, track->vosLen+18+14+17);
+ int decoderSpecificInfoLen = track->vosLen ? descrLength(track->vosLen):0;
+ int pos = url_ftell(pb);
+
+ put_be32(pb, 0); // size
put_tag(pb, "esds");
- put_be32(pb, 0); // Version
+ 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)
+ // ES descriptor
+ putDescr(pb, 0x03, 3 + descrLength(13 + decoderSpecificInfoLen) +
+ descrLength(1));
+ 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)
+ // DecoderConfig descriptor
+ putDescr(pb, 0x04, 13 + decoderSpecificInfoLen);
+
+ if(track->enc->codec_id == CODEC_ID_AAC)
+ put_byte(pb, 0x40); // Object type indication
+ else if(track->enc->codec_id == CODEC_ID_MPEG4)
+ put_byte(pb, 0x20); // Object type indication (Visual 14496-2)
+
+ if(track->enc->codec_type == CODEC_TYPE_AUDIO)
+ put_byte(pb, 0x15); // flags (= Audiostream)
+ else
+ put_byte(pb, 0x11); // flags (= Visualstream)
+
put_byte(pb, 0x0); // Buffersize DB (24 bits)
put_be16(pb, 0x0dd2); // Buffersize DB
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
+ if (track->vosLen)
+ {
+ // DecoderSpecific info descriptor
+ putDescr(pb, 0x05, track->vosLen);
+ put_buffer(pb, track->vosData, track->vosLen);
+ }
+
+ // SL descriptor
+ putDescr(pb, 0x06, 1);
put_byte(pb, 0x02);
- return track->vosLen+18+14+17;
+ return updateSize (pb, pos);
}
+const CodecTag codec_movvideo_tags[] = {
+ { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') },
+ { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') },
+ { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
+ { CODEC_ID_H263, MKTAG('s', '2', '6', '3') },
+ { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') },
+ { 0, 0 },
+};
+
static int mov_write_video_tag(ByteIOContext *pb, MOVTrack* track)
{
- int pos = url_ftell(pb);
+ int pos = url_ftell(pb), tag;
+
put_be32(pb, 0); /* size */
- if(track->enc->codec_id == CODEC_ID_SVQ1)
- put_tag(pb, "SVQ1");
- else if(track->enc->codec_id == CODEC_ID_SVQ3)
- put_tag(pb, "SVQ3");
- else if(track->enc->codec_id == CODEC_ID_MPEG4)
- put_tag(pb, "mp4v");
- else if(track->enc->codec_id == CODEC_ID_H263)
- put_tag(pb, "s263");
+
+ tag = codec_get_tag(codec_movvideo_tags, track->enc->codec_id);
+ // if no mac fcc found, try with Microsoft tags
+ if (!tag)
+ tag = codec_get_tag(codec_bmp_tags, track->enc->codec_id);
+ if (!tag)
+ put_tag(pb, " ");
else
- put_tag(pb, " "); /* Unknown tag */
+ put_le32(pb, tag); // store it byteswapped
put_be32(pb, 0); /* Reserved */
put_be16(pb, 0); /* Reserved */
put_be16(pb, track->enc->height); /* Video height */
put_be32(pb, 0x00480000); /* Reserved */
put_be32(pb, 0x00480000); /* Reserved */
+ put_be32(pb, 0); /* Data size (= 0) */
+ put_be16(pb, 1); /* Frame count (= 1) */
+
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, 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 */
if(track->enc->codec_id == CODEC_ID_MPEG4)
}
/* TODO?: Currently all samples/frames seem to have same duration */
+/* Time to sample atom */
static int mov_write_stts_tag(ByteIOContext *pb, MOVTrack* track)
{
put_be32(pb, 0x18); /* size */
put_be32(pb, 0); /* version & flags */
put_be32(pb, 1); /* entry count */
- put_be32(pb, track->frameCount); /* sample count */
- put_be32(pb, track->sampleDelta); /* sample delta */
+ put_be32(pb, track->sampleCount); /* sample count */
+ put_be32(pb, track->sampleDuration); /* sample duration */
return 0x18;
}
return 0x14;
}
-static int mov_write_minf_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int pos = url_ftell(pb);
- put_be32(pb, 0); /* size */
- put_tag(pb, "minf");
- if(track->enc->codec_type == CODEC_TYPE_VIDEO)
- mov_write_vmhd_tag(pb);
- else
- mov_write_smhd_tag(pb);
- mov_write_dinf_tag(pb);
- mov_write_stbl_tag(pb, track);
- return updateSize(pb, pos);
-}
-
static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack* track)
{
- char *str;
+ char *descr, *hdlr, *hdlr_type;
int pos = url_ftell(pb);
+
+ if (!track) { /* no media --> data handler */
+ hdlr = "dhlr";
+ hdlr_type = "url ";
+ descr = "DataHandler";
+ } else {
+ hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
+ if (track->enc->codec_type == CODEC_TYPE_VIDEO) {
+ hdlr_type = "vide";
+ descr = "VideoHandler";
+ } else {
+ hdlr_type = "soun";
+ descr = "SoundHandler";
+ }
+ }
+
put_be32(pb, 0); /* 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_buffer(pb, hdlr, 4); /* handler */
+ put_tag(pb, hdlr_type); /* handler type */
put_be32(pb ,0); /* reserved */
put_be32(pb ,0); /* reserved */
put_be32(pb ,0); /* reserved */
+ put_byte(pb, strlen(descr)); /* string counter */
+ put_buffer(pb, descr, strlen(descr)); /* handler description */
+ return updateSize(pb, pos);
+}
+
+static int mov_write_minf_tag(ByteIOContext *pb, MOVTrack* track)
+{
+ int pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "minf");
if(track->enc->codec_type == CODEC_TYPE_VIDEO)
- str = "VideoHandler";
+ mov_write_vmhd_tag(pb);
else
- str = "SoundHandler";
- put_byte(pb, strlen(str)); /* string counter */
- put_buffer(pb, str, strlen(str));
+ mov_write_smhd_tag(pb);
+ if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
+ mov_write_hdlr_tag(pb, NULL);
+ mov_write_dinf_tag(pb);
+ mov_write_stbl_tag(pb, track);
return updateSize(pb, pos);
}
put_be32(pb, 0); /* Version & flags */
put_be32(pb, track->time); /* creation time */
put_be32(pb, track->time); /* modification time */
- if(track->enc->codec_type == CODEC_TYPE_VIDEO) {
- int64_t rate = track->enc->frame_rate;
- put_be32(pb, rate);
- put_be32(pb, rate*(int64_t)track->trackDuration/(int64_t)globalTimescale); // duration
- }
- else {
- put_be32(pb, track->timescale); /* time scale (sample rate for audio) */
- put_be32(pb, track->trackDuration); /* duration */
- }
+ put_be32(pb, track->timescale); /* time scale (sample rate for audio) */
+ put_be32(pb, track->trackDuration); /* duration */
put_be16(pb, 0); /* language, 0 = english */
put_be16(pb, 0); /* reserved (quality) */
return 32;
/* Track width and height, for visual only */
if(track->enc->codec_type == CODEC_TYPE_VIDEO) {
- put_be32(pb, track->enc->width*0x10000);
+ double sample_aspect_ratio = av_q2d(track->enc->sample_aspect_ratio);
+ if( !sample_aspect_ratio ) sample_aspect_ratio = 1;
+ put_be32(pb, sample_aspect_ratio * track->enc->width*0x10000);
put_be32(pb, track->enc->height*0x10000);
}
else {
return 0x6c;
}
-static int mov_write_moov_tag(ByteIOContext *pb, MOVContext *mov)
+static int mov_write_udta_tag(ByteIOContext *pb, MOVContext* mov,
+ AVFormatContext *s)
+{
+ int pos = url_ftell(pb);
+ int i;
+
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "udta");
+
+ /* Requirements */
+ for (i=0; i<MAX_STREAMS; i++) {
+ if(mov->tracks[i].entry <= 0) continue;
+ if (mov->tracks[i].enc->codec_id == CODEC_ID_AAC ||
+ mov->tracks[i].enc->codec_id == CODEC_ID_MPEG4) {
+ int pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "\251req");
+ put_be16(pb, sizeof("QuickTime 6.0 or greater") - 1);
+ put_be16(pb, 0);
+ put_buffer(pb, "QuickTime 6.0 or greater",
+ sizeof("QuickTime 6.0 or greater") - 1);
+ updateSize(pb, pos);
+ break;
+ }
+ }
+
+ /* Encoder */
+ if(!(mov->tracks[0].enc->flags & CODEC_FLAG_BITEXACT))
+ {
+ int pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "\251enc");
+ put_be16(pb, sizeof(LIBAVFORMAT_IDENT) - 1); /* string length */
+ put_be16(pb, 0);
+ put_buffer(pb, LIBAVFORMAT_IDENT, sizeof(LIBAVFORMAT_IDENT) - 1);
+ updateSize(pb, pos);
+ }
+
+ if( s->title[0] )
+ {
+ int pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "\251nam");
+ put_be16(pb, strlen(s->title)); /* string length */
+ put_be16(pb, 0);
+ put_buffer(pb, s->title, strlen(s->title));
+ updateSize(pb, pos);
+ }
+
+ if( s->author[0] )
+ {
+ int pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, /*"\251aut"*/ "\251day" );
+ put_be16(pb, strlen(s->author)); /* string length */
+ put_be16(pb, 0);
+ put_buffer(pb, s->author, strlen(s->author));
+ updateSize(pb, pos);
+ }
+
+ if( s->comment[0] )
+ {
+ int pos = url_ftell(pb);
+ put_be32(pb, 0); /* size */
+ put_tag(pb, "\251des");
+ put_be16(pb, strlen(s->comment)); /* string length */
+ put_be16(pb, 0);
+ put_buffer(pb, s->comment, strlen(s->comment));
+ updateSize(pb, pos);
+ }
+
+ return updateSize(pb, pos);
+}
+
+static int mov_write_moov_tag(ByteIOContext *pb, MOVContext *mov,
+ AVFormatContext *s)
{
int pos, i;
pos = url_ftell(pb);
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].enc->frame_rate_base;
- mov->tracks[i].frameCount = mov->tracks[i].samples;
- mov->tracks[i].trackDuration = (int64_t)((int64_t)mov->tracks[i].entry*
- (int64_t)globalTimescale*(int64_t)mov->tracks[i].enc->frame_rate_base)/(int64_t)mov->tracks[i].enc->frame_rate;
+ if(mov->tracks[i].entry <= 0) continue;
+
+ if(mov->tracks[i].enc->codec_type == CODEC_TYPE_VIDEO) {
+ mov->tracks[i].timescale = mov->tracks[i].enc->frame_rate;
+ mov->tracks[i].sampleDuration = mov->tracks[i].enc->frame_rate_base;
+ }
+ 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].sampleDuration = 160; // Bytes per chunk
+ mov->tracks[i].timescale = 8000;
}
- else if(mov->tracks[i].enc->codec_type == CODEC_TYPE_AUDIO) {
- long trackDuration = 0;
- /* If AMR, track timescale = 8000, AMR_WB = 16000 */
- if(mov->tracks[i].enc->codec_id == CODEC_ID_AMR_NB) {
- int j;
- for (j=0; j<mov->tracks[i].samples; j++) {
- int cl = j / MOV_INDEX_CLUSTER_SIZE;
- int id = j % MOV_INDEX_CLUSTER_SIZE;
- trackDuration += mov->tracks[i].cluster[cl][id].entries;
- }
- mov->tracks[i].sampleDelta = 160; // Bytes per chunk
- mov->tracks[i].frameCount = mov->tracks[i].samples;
- mov->tracks[i].trackDuration =
- mov->tracks[i].samples * mov->tracks[i].sampleDelta; //trackDuration
- mov->tracks[i].timescale = 8000;
- }
- else {
- int j;
- for (j=0; j<=mov->tracks[i].entry; j++) {
- int cl = j / MOV_INDEX_CLUSTER_SIZE;
- int id = j % MOV_INDEX_CLUSTER_SIZE;
- trackDuration += mov->tracks[i].cluster[cl][id].len;
- }
- mov->tracks[i].frameCount = trackDuration;
- mov->tracks[i].timescale = mov->tracks[i].enc->sample_rate;
- mov->tracks[i].sampleDelta = 1;
- mov->tracks[i].trackDuration = trackDuration;
- }
+ else {
+ mov->tracks[i].timescale = mov->tracks[i].enc->sample_rate;
+ mov->tracks[i].sampleDuration = mov->tracks[i].enc->frame_size;
}
- mov->tracks[i].time = mov->time;
- mov->tracks[i].trackID = i+1;
}
+
+ mov->tracks[i].trackDuration =
+ mov->tracks[i].sampleCount * mov->tracks[i].sampleDuration;
+ mov->tracks[i].time = mov->time;
+ mov->tracks[i].trackID = i+1;
}
mov_write_mvhd_tag(pb, mov);
}
}
+ mov_write_udta_tag(pb, mov, s);
+
return updateSize(pb, pos);
}
}
/* TODO: This needs to be more general */
-int mov_write_ftyp_tag(ByteIOContext *pb)
+int mov_write_ftyp_tag(ByteIOContext *pb, AVFormatContext *s)
{
+ MOVContext *mov = s->priv_data;
+
put_be32(pb, 0x14 ); /* size */
put_tag(pb, "ftyp");
- put_tag(pb, "3gp4");
+
+ if ( mov->mode == MODE_3GP )
+ put_tag(pb, "3gp4");
+ else
+ put_tag(pb, "isom");
+
put_be32(pb, 0x200 );
- put_tag(pb, "3gp4");
+
+ if ( mov->mode == MODE_3GP )
+ put_tag(pb, "3gp4");
+ else
+ put_tag(pb, "mp41");
+
return 0x14;
}
static int mov_write_header(AVFormatContext *s)
{
ByteIOContext *pb = &s->pb;
+ MOVContext *mov = s->priv_data;
+ int i;
+
+ /* Default mode == MP4 */
+ mov->mode = MODE_MP4;
- if(s->oformat != NULL) {
- if(!strcmp("3gp", s->oformat->name))
- mov_write_ftyp_tag(pb);
+ if (s->oformat != NULL) {
+ if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
+ else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
+
+ if ( mov->mode == MODE_3GP || mov->mode == MODE_MP4 )
+ mov_write_ftyp_tag(pb,s);
+ }
+
+ for (i=0; i<MAX_STREAMS; i++) {
+ mov->tracks[i].mode = mov->mode;
}
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,
const uint8_t *buf, int size, int64_t pts)
{
MOVContext *mov = s->priv_data;
ByteIOContext *pb = &s->pb;
- AVCodecContext *enc;
+ AVCodecContext *enc = &s->streams[stream_index]->codec;
+ MOVTrack* trk = &mov->tracks[stream_index];
int cl, id;
+ unsigned int samplesInChunk = 0;
- enc = &s->streams[stream_index]->codec;
- if (!url_is_streamed(&s->pb)) {
- MOVTrack* trk = &mov->tracks[stream_index];
- int sampleCount = 0;
- unsigned int chunkSize = 0;
+ if (url_is_streamed(&s->pb)) return 0; /* Can't handle that */
+ if (!size) return 0; /* Discard 0 sized packets */
- if(enc->codec_type == CODEC_TYPE_AUDIO) {
+ if (enc->codec_type == CODEC_TYPE_VIDEO ) {
+ samplesInChunk = 1;
+ }
+ else if (enc->codec_type == CODEC_TYPE_AUDIO ) {
+ if( enc->codec_id == CODEC_ID_AMR_NB) {
/* We must find out how many AMR blocks there are in one packet */
- if(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++;
- }
- chunkSize = 1;
- }
- else {
- sampleCount = size;
- chunkSize = size/enc->channels;
+ 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 && samplesInChunk < 100) {
+ len += packed_size[(buf[len] >> 3) & 0x0F];
+ samplesInChunk++;
}
}
- else if(enc->codec_type == CODEC_TYPE_VIDEO) {
- if(enc->codec_id == CODEC_ID_MPEG4 &&
- trk->vosLen == 0)
- {
- assert(enc->extradata_size);
-
- trk->vosLen = enc->extradata_size;
- trk->vosData = av_malloc(trk->vosLen);
- memcpy(trk->vosData, enc->extradata, trk->vosLen);
- }
- chunkSize = 1;
+ else if(enc->codec_id == CODEC_ID_PCM_ALAW) {
+ samplesInChunk = size/enc->channels;
}
-
- cl = trk->entry / MOV_INDEX_CLUSTER_SIZE;
- 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;
+ else if(enc->codec_id == CODEC_ID_PCM_S16BE || enc->codec_id == CODEC_ID_PCM_S16LE) {
+ samplesInChunk = size/(2*enc->channels);
+ }
+ else {
+ samplesInChunk = 1;
}
- if(mov->mdat_written == 0) {
- mov_write_mdat_tag(pb, mov);
- mov->mdat_written = 1;
- mov->time = Timestamp();
- }
-
- trk->cluster[cl][id].pos = url_ftell(pb) - mov->movi_list;
- trk->cluster[cl][id].chunkSize = chunkSize;
- if(enc->channels > 1)
- trk->cluster[cl][id].len = size/enc->channels;
- else
- trk->cluster[cl][id].len = size;
- trk->cluster[cl][id].entries = sampleCount;
- if(enc->codec_type == CODEC_TYPE_VIDEO) {
- trk->cluster[cl][id].key_frame = enc->coded_frame->key_frame;
- if(enc->coded_frame->pict_type == FF_I_TYPE)
+ }
+
+ if ((enc->codec_id == CODEC_ID_MPEG4 || enc->codec_id == CODEC_ID_AAC)
+ && trk->vosLen == 0) {
+// assert(enc->extradata_size);
+
+ trk->vosLen = enc->extradata_size;
+ trk->vosData = av_malloc(trk->vosLen);
+ memcpy(trk->vosData, enc->extradata, trk->vosLen);
+ }
+
+ cl = trk->entry / MOV_INDEX_CLUSTER_SIZE;
+ 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 (mov->mdat_written == 0) {
+ mov_write_mdat_tag(pb, mov);
+ mov->mdat_written = 1;
+ mov->time = s->timestamp;
+ }
+
+ trk->cluster[cl][id].pos = url_ftell(pb);
+ trk->cluster[cl][id].samplesInChunk = samplesInChunk;
+ trk->cluster[cl][id].size = size;
+ trk->cluster[cl][id].entries = samplesInChunk;
+ if(enc->codec_type == CODEC_TYPE_VIDEO) {
+ trk->cluster[cl][id].key_frame = enc->coded_frame->key_frame;
+ if(enc->coded_frame->pict_type == FF_I_TYPE)
trk->hasKeyframes = 1;
- }
- trk->enc = enc;
- trk->entry++;
- if(sampleCount == 0)
- trk->samples++;
- else
- trk->samples += sampleCount;
- trk->mdat_size += size;
}
+ trk->enc = enc;
+ trk->entry++;
+ trk->sampleCount += samplesInChunk;
+ trk->mdat_size += size;
+
put_buffer(pb, buf, size);
put_flush_packet(pb);
ByteIOContext *pb = &s->pb;
int res = 0;
int i, j;
- offset_t file_size;
- file_size = url_ftell(pb);
- j = 0;
+ offset_t moov_pos = url_ftell(pb);
/* Write size of mdat tag */
- for (i=0; i<MAX_STREAMS; i++) {
+ for (i=0, j=0; i<MAX_STREAMS; i++) {
if(mov->tracks[i].ents_allocated > 0) {
j += mov->tracks[i].mdat_size;
}
}
url_fseek(pb, mov->mdat_pos, SEEK_SET);
put_be32(pb, j+8);
- url_fseek(pb, file_size, SEEK_SET);
+ url_fseek(pb, moov_pos, SEEK_SET);
- mov_write_moov_tag(pb, mov);
+ mov_write_moov_tag(pb, mov, s);
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);
+ if( mov->tracks[i].vosLen ) av_free( mov->tracks[i].vosData );
+
mov->tracks[i].cluster = NULL;
mov->tracks[i].ents_allocated = mov->tracks[i].entry = 0;
}
+
put_flush_packet(pb);
return res;
NULL,
"mov",
sizeof(MOVContext),
- CODEC_ID_PCM_ALAW,
+ CODEC_ID_AAC,
CODEC_ID_MPEG4,
mov_write_header,
mov_write_packet,
static AVOutputFormat mp4_oformat = {
"mp4",
"mp4 format",
- NULL,
- "mp4",
+ "application/mp4",
+ "mp4,m4a",
sizeof(MOVContext),
CODEC_ID_AAC,
CODEC_ID_MPEG4,
projects / ffmpeg / blobdiff