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ffmpeg.wasm-core
Commit f578f938 authored by Thomas Raivio's avatar Thomas Raivio Committed by Michael Niedermayer
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mov/mp4/3gp muxer improvements patch by (Thomas Raivio <tjraivio at cc dot hut dot fi>) 

Originally committed as revision 2314 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 1e4ddde2
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Showing with 274 additions and 192 deletions
libavformat/movenc.c
View file @ f578f938
......@@ -17,22 +17,20 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "avformat.h"
#include "avi.h"
#include "avio.h"
#include <time.h>
#undef NDEBUG
#include <assert.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 chunkSize;
char key_frame;
unsigned int entries;
} MOVIentry;
......@@ -40,12 +38,13 @@ typedef struct MOVIndex {
int entry;
int samples;
int mdat_size;
offset_t mdat_pos;
int ents_allocated;
long timescale;
long time;
long frameDuration;
long frameCount;
long trackDuration;
long sampleDelta;
int hasKeyframes;
int trackID;
AVCodecContext *enc;
......@@ -57,6 +56,8 @@ typedef struct MOVIndex {
typedef struct {
long time;
int nb_streams;
int mdat_written;
offset_t mdat_pos;
offset_t movi_list;
long timescale;
MOVTrack tracks[MAX_STREAMS];
......@@ -76,7 +77,8 @@ static int updateSize (ByteIOContext *pb, int pos)
static int mov_write_stco_tag(ByteIOContext *pb, MOVTrack* track)
{
int i;
put_be32(pb, 16+track->entry*4); /* size */
int pos = url_ftell(pb);
put_be32(pb, 0); /* size */
put_tag(pb, "stco");
put_be32(pb, 0); /* version & flags */
put_be32(pb, track->entry); /* entry count */
......@@ -85,81 +87,101 @@ static int mov_write_stco_tag(ByteIOContext *pb, MOVTrack* track)
int id = i % MOV_INDEX_CLUSTER_SIZE;
put_be32(pb, track->cluster[cl][id].pos);
}
return 16+track->entry*4;
return updateSize (pb, pos);
}
static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack* track)
{
int i, size;
int equalChunks = 1;
int i, tst = -1, oldtst = -1;
if(track->cluster[0][0].entries != 0)
size = 20;
else
size = 20+track->samples*4;
put_be32(pb, size); /* size */
int pos = url_ftell(pb);
put_be32(pb, 0); /* 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 */
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;
}
else
{
put_be32(pb, 0); /* sample size */
put_be32(pb, track->samples); /* sample count */
for (i=0; i<track->samples; i++) {
oldtst = tst;
}
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;
put_be32(pb, sSize); // sample size
put_be32(pb, track->samples/track->enc->channels); // sample count
}
else {
put_be32(pb, 0); // sample size
put_be32(pb, track->entry); // 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);
}
}
return size;
return updateSize (pb, pos);
}
static 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
int index = 0, oldval = -1, i, entryPos, curpos;
int pos = url_ftell(pb);
put_be32(pb, 0); /* size */
put_tag(pb, "stsc");
put_be32(pb, 0); // version & flags
if(track->cluster[0][0].entries != 0) {
int i;
entryPos = url_ftell(pb);
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;
if(oldval != track->cluster[cl][id].chunkSize)
{
put_be32(pb, i+1); // first chunk
put_be32(pb, track->cluster[cl][id].entries);
put_be32(pb, track->cluster[cl][id].chunkSize);
put_be32(pb, 0x1); // sample description index
oldval = track->cluster[cl][id].chunkSize;
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
}
curpos = url_ftell(pb);
url_fseek(pb, entryPos, SEEK_SET);
put_be32(pb, index); // rewrite size
url_fseek(pb, curpos, SEEK_SET);
return size;
return updateSize (pb, pos);
}
//FIXME keyframes?
static int mov_write_stss_tag(ByteIOContext *pb) //TRA OK
static int mov_write_stss_tag(ByteIOContext *pb, MOVTrack* track)
{
put_be32(pb, 0x14); /* size */
long curpos;
int i, index = 0, entryPos;
int pos = url_ftell(pb);
put_be32(pb, 0); // 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;
put_be32(pb, 0); // version & flags
entryPos = url_ftell(pb);
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;
if(track->cluster[cl][id].key_frame == 1) {
put_be32(pb, i+1);
index++;
}
}
curpos = url_ftell(pb);
url_fseek(pb, entryPos, SEEK_SET);
put_be32(pb, index); // rewrite size
url_fseek(pb, curpos, SEEK_SET);
return updateSize (pb, pos);
}
static int mov_write_damr_tag(ByteIOContext *pb)
......@@ -168,29 +190,52 @@ static int mov_write_damr_tag(ByteIOContext *pb)
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) */
put_be16(pb, 0x80); /* Mode set (all modes for AMR_NB) */
put_be16(pb, 0xa); /* Mode change period (no restriction) */
//put_be16(pb, 0x81ff); /* Mode set (all modes for AMR_NB) */
//put_be16(pb, 1); /* Mode change period (no restriction) */
return 0x11;
}
static int mov_write_samr_tag(ByteIOContext *pb, MOVTrack* track)
static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
{
int pos = url_ftell(pb);
put_be32(pb, 0); /* size */
/* "samr" for AMR NB, "sawb" for AMR WB */
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");
else
put_tag(pb, " ");
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, 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 */
put_be16(pb, 0x10); /* Reserved */
put_be32(pb, 0); /* 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->enc->codec_id == CODEC_ID_AMR_NB)
mov_write_damr_tag(pb);
return updateSize (pb, pos);
}
......@@ -205,36 +250,17 @@ static int mov_write_d263_tag(ByteIOContext *pb)
return 0xf;
}
static int mov_write_s263_tag(ByteIOContext *pb, MOVTrack* track)
/* TODO: No idea about these values */
static int mov_write_svq3_tag(ByteIOContext *pb)
{
int 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 */
mov_write_d263_tag(pb);
return updateSize (pb, pos);
put_be32(pb, 0x15);
put_tag(pb, "SMI ");
put_tag(pb, "SEQH");
put_be32(pb, 0x5);
put_be32(pb, 0xe2c0211d);
put_be32(pb, 0xc0000000);
put_byte(pb, 0);
return 0x15;
}
static unsigned int esdsLength(unsigned int len)
......@@ -285,37 +311,54 @@ static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track) // Basic
return track->vosLen+18+14+17;
}
static int mov_write_mp4v_tag(ByteIOContext *pb, MOVTrack* track) // Basic
static int mov_write_video_tag(ByteIOContext *pb, MOVTrack* track)
{
int pos = url_ftell(pb);
put_be32(pb, 0);
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");
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
else if(track->enc->codec_id == CODEC_ID_H263)
put_tag(pb, "s263");
else
put_tag(pb, " "); /* Unknown tag */
put_be32(pb, 0); /* Reserved */
put_be16(pb, 0); /* Reserved */
put_be16(pb, 1); /* Data-reference index */
put_be32(pb, 0); /* Reserved (= 02000c) */
put_be32(pb, 0); /* Reserved ("SVis")*/
put_be32(pb, 0); /* Reserved */
put_be32(pb, 0); /* Reserved (400)*/
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_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)
mov_write_esds_tag(pb, track);
return updateSize(pb, pos);
else if(track->enc->codec_id == CODEC_ID_H263)
mov_write_d263_tag(pb);
else if(track->enc->codec_id == CODEC_ID_SVQ3)
mov_write_svq3_tag(pb);
return updateSize (pb, pos);
}
static int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack* track)
......@@ -325,19 +368,14 @@ static int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack* track)
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)
mov_write_s263_tag(pb, track);
else if (track->enc->codec_id == CODEC_ID_MPEG4)
mov_write_mp4v_tag(pb, track);
}
else if (track->enc->codec_type == CODEC_TYPE_AUDIO) {
if (track->enc->codec_id == CODEC_ID_AMR_NB)
mov_write_samr_tag(pb, track);
}
if (track->enc->codec_type == CODEC_TYPE_VIDEO)
mov_write_video_tag(pb, track);
else if (track->enc->codec_type == CODEC_TYPE_AUDIO)
mov_write_audio_tag(pb, track);
return updateSize(pb, pos);
}
/* TODO?: Currently all samples/frames seem to have same duration */
static int mov_write_stts_tag(ByteIOContext *pb, MOVTrack* track)
{
put_be32(pb, 0x18); /* size */
......@@ -345,7 +383,7 @@ static int mov_write_stts_tag(ByteIOContext *pb, MOVTrack* track)
put_be32(pb, 0); /* version & flags */
put_be32(pb, 1); /* entry count */
put_be32(pb, track->samples); /* sample count */
put_be32(pb, track->frameCount); /* sample count */
put_be32(pb, track->sampleDelta); /* sample delta */
return 0x18;
}
......@@ -371,8 +409,9 @@ static int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack* track)
put_tag(pb, "stbl");
mov_write_stsd_tag(pb, track);
mov_write_stts_tag(pb, track);
if (track->enc->codec_type == CODEC_TYPE_VIDEO)
mov_write_stss_tag(pb);
if (track->enc->codec_type == CODEC_TYPE_VIDEO &&
track->hasKeyframes)
mov_write_stss_tag(pb, track);
mov_write_stsc_tag(pb, track);
mov_write_stsz_tag(pb, track);
mov_write_stco_tag(pb, track);
......@@ -423,9 +462,9 @@ static int mov_write_minf_tag(ByteIOContext *pb, MOVTrack* track)
static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack* track)
{
int size = 0;
size = 45;
put_be32(pb, size); /* size */
char *str;
int pos = url_ftell(pb);
put_be32(pb, 0); /* size */
put_tag(pb, "hdlr");
put_be32(pb, 0); /* Version & flags */
put_be32(pb, 0); /* reserved */
......@@ -433,23 +472,16 @@ static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack* track)
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 */
put_be32(pb ,0); /* reserved */
put_be32(pb ,0); /* reserved */
put_be32(pb ,0); /* reserved */
if(track->enc->codec_type == CODEC_TYPE_VIDEO)
put_buffer(pb, "VideoHandler", 13);
str = "VideoHandler";
else
put_buffer(pb, "SoundHandler", 13);
return size;
str = "SoundHandler";
put_byte(pb, strlen(str)); /* string counter */
put_buffer(pb, str, strlen(str));
return updateSize(pb, pos);
}
static int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack* track)
......@@ -459,9 +491,15 @@ static int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack* track)
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 */
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_be16(pb, 0); /* language, 0 = english */
put_be16(pb, 0); /* reserved (quality) */
return 32;
......@@ -480,14 +518,16 @@ static int mov_write_mdia_tag(ByteIOContext *pb, MOVTrack* track)
static int mov_write_tkhd_tag(ByteIOContext *pb, MOVTrack* track)
{
int64_t maxTrackLenTemp;
put_be32(pb, 0x5c); /* size (always 0x5c) */
put_tag(pb, "tkhd");
put_be32(pb, 1); /* version & flags (track enabled) */
put_be32(pb, 0xf); /* 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 */
maxTrackLenTemp = ((int64_t)globalTimescale*(int64_t)track->trackDuration)/(int64_t)track->timescale;
put_be32(pb, (long)maxTrackLenTemp); /* duration */
put_be32(pb, 0); /* reserved */
put_be32(pb, 0); /* reserved */
......@@ -512,8 +552,8 @@ static int mov_write_tkhd_tag(ByteIOContext *pb, MOVTrack* track)
/* Track width and height, for visual only */
if(track->enc->codec_type == CODEC_TYPE_VIDEO) {
put_be32(pb, 0x01400000);
put_be32(pb, 0x00f00000);
put_be32(pb, track->enc->width*0x10000);
put_be32(pb, track->enc->height*0x10000);
}
else {
put_be32(pb, 0);
......@@ -549,6 +589,7 @@ static int mov_write_iods_tag(ByteIOContext *pb, MOVContext *mov)
static int mov_write_mvhd_tag(ByteIOContext *pb, MOVContext *mov)
{
int maxTrackID = 1, maxTrackLen = 0, i;
int64_t maxTrackLenTemp;
put_be32(pb, 0x6c); /* size (always 0x6c) */
put_tag(pb, "mvhd");
......@@ -558,8 +599,9 @@ static int mov_write_mvhd_tag(ByteIOContext *pb, MOVContext *mov)
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;
maxTrackLenTemp = ((int64_t)globalTimescale*(int64_t)mov->tracks[i].trackDuration)/(int64_t)mov->tracks[i].timescale;
if(maxTrackLen < maxTrackLenTemp)
maxTrackLen = maxTrackLenTemp;
if(maxTrackID < mov->tracks[i].trackID)
maxTrackID = mov->tracks[i].trackID;
}
......@@ -605,20 +647,38 @@ static int mov_write_moov_tag(ByteIOContext *pb, MOVContext *mov)
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;
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;
}
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) {
mov->tracks[i].frameDuration = 20;
mov->tracks[i].sampleDelta = 160;
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 {
mov->tracks[i].timescale = globalTimescale;
mov->tracks[i].frameDuration =
globalTimescale*mov->tracks[i].enc->frame_rate_base/mov->tracks[i].enc->frame_rate;
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;
}
}
mov->tracks[i].time = mov->time;
......@@ -637,9 +697,9 @@ static int mov_write_moov_tag(ByteIOContext *pb, MOVContext *mov)
return updateSize(pb, pos);
}
int mov_write_mdat_tag(ByteIOContext *pb, MOVTrack* track)
int mov_write_mdat_tag(ByteIOContext *pb, MOVContext* mov)
{
track->mdat_pos = url_ftell(pb);
mov->mdat_pos = url_ftell(pb);
put_be32(pb, 0); /* size placeholder*/
put_tag(pb, "mdat");
return 0;
......@@ -660,8 +720,10 @@ static int mov_write_header(AVFormatContext *s)
{
ByteIOContext *pb = &s->pb;
/* write ftyp */
if(s->oformat != NULL) {
if(!strcmp("3gp", s->oformat->name))
mov_write_ftyp_tag(pb);
}
put_flush_packet(pb);
......@@ -686,7 +748,9 @@ static int mov_write_packet(AVFormatContext *s, int stream_index,
if (!url_is_streamed(&s->pb)) {
MOVTrack* trk = &mov->tracks[stream_index];
int sampleCount = 0;
unsigned int chunkSize = 0;
if(enc->codec_type == CODEC_TYPE_AUDIO) {
/* 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};
......@@ -696,8 +760,14 @@ static int mov_write_packet(AVFormatContext *s, int stream_index,
len += packed_size[(buf[len] >> 3) & 0x0F];
sampleCount++;
}
chunkSize = 1;
}
else {
sampleCount = size;
chunkSize = size/enc->channels;
}
}
else if(enc->codec_type == CODEC_TYPE_VIDEO) {
if(enc->codec_id == CODEC_ID_MPEG4 &&
trk->vosLen == 0)
{
......@@ -707,6 +777,8 @@ static int mov_write_packet(AVFormatContext *s, int stream_index,
trk->vosData = av_malloc(trk->vosLen);
memcpy(trk->vosData, enc->extradata, trk->vosLen);
}
chunkSize = 1;
}
cl = trk->entry / MOV_INDEX_CLUSTER_SIZE;
id = trk->entry % MOV_INDEX_CLUSTER_SIZE;
......@@ -720,14 +792,24 @@ static int mov_write_packet(AVFormatContext *s, int stream_index,
return -1;
trk->ents_allocated += MOV_INDEX_CLUSTER_SIZE;
}
if(stream_index == 0 && trk->entry == 0) {
mov_write_mdat_tag(pb, trk);
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)
trk->hasKeyframes = 1;
}
trk->enc = enc;
trk->entry++;
if(sampleCount == 0)
......@@ -759,7 +841,7 @@ static int mov_write_trailer(AVFormatContext *s)
j += mov->tracks[i].mdat_size;
}
}
url_fseek(pb, mov->tracks[0].mdat_pos, SEEK_SET);
url_fseek(pb, mov->mdat_pos, SEEK_SET);
put_be32(pb, j+8);
url_fseek(pb, file_size, SEEK_SET);
......@@ -784,7 +866,7 @@ static AVOutputFormat mov_oformat = {
NULL,
"mov",
sizeof(MOVContext),
CODEC_ID_MP2,
CODEC_ID_PCM_ALAW,
CODEC_ID_MPEG4,
mov_write_header,
mov_write_packet,
......
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