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simplify

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Originally committed as revision 5517 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2006-06-24 18:09:20 +00:00
parent d1015e88b4
commit 0aec3c5cbf
1 changed files with 28 additions and 53 deletions
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81
libavformat/movenc.c
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@ -47,7 +47,6 @@ typedef struct MOVIentry {
typedef struct MOVIndex {
int mode;
int entry;
int ents_allocated;
long timescale;
long time;
int64_t trackDuration;
@ -62,7 +61,7 @@ typedef struct MOVIndex {
int vosLen;
uint8_t *vosData;
MOVIentry** cluster;
MOVIentry *cluster;
} MOVTrack;
typedef struct MOVContext {
@ -101,12 +100,10 @@ static int mov_write_stco_tag(ByteIOContext *pb, MOVTrack* track)
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;
if(mode64 == 1)
put_be64(pb, track->cluster[cl][id].pos);
put_be64(pb, track->cluster[i].pos);
else
put_be32(pb, track->cluster[cl][id].pos);
put_be32(pb, track->cluster[i].pos);
}
return updateSize (pb, pos);
}
@ -123,17 +120,15 @@ static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack* track)
put_be32(pb, 0); /* version & flags */
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].size/track->cluster[cl][id].entries;
tst = track->cluster[i].size/track->cluster[i].entries;
if(oldtst != -1 && tst != oldtst) {
equalChunks = 0;
}
oldtst = tst;
entries += track->cluster[cl][id].entries;
entries += track->cluster[i].entries;
}
if (equalChunks) {
int sSize = track->cluster[0][0].size/track->cluster[0][0].entries;
int sSize = track->cluster[0].size/track->cluster[0].entries;
put_be32(pb, sSize); // sample size
put_be32(pb, entries); // sample count
}
@ -141,11 +136,9 @@ static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack* track)
put_be32(pb, 0); // sample size
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;
for ( j=0; j<track->cluster[cl][id].entries; j++) {
put_be32(pb, track->cluster[cl][id].size /
track->cluster[cl][id].entries);
for ( j=0; j<track->cluster[i].entries; j++) {
put_be32(pb, track->cluster[i].size /
track->cluster[i].entries);
}
}
}
@ -165,14 +158,12 @@ static int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack* track)
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].samplesInChunk)
if(oldval != track->cluster[i].samplesInChunk)
{
put_be32(pb, i+1); // first chunk
put_be32(pb, track->cluster[cl][id].samplesInChunk); // samples per chunk
put_be32(pb, track->cluster[i].samplesInChunk); // samples per chunk
put_be32(pb, 0x1); // sample description index
oldval = track->cluster[cl][id].samplesInChunk;
oldval = track->cluster[i].samplesInChunk;
index++;
}
}
@ -196,9 +187,7 @@ static int mov_write_stss_tag(ByteIOContext *pb, MOVTrack* track)
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) {
if(track->cluster[i].key_frame == 1) {
put_be32(pb, i+1);
index++;
}
@ -693,15 +682,13 @@ static int mov_write_ctts_tag(ByteIOContext *pb, MOVTrack* track)
ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
ctts_entries[0].count = 1;
ctts_entries[0].duration = track->cluster[0][0].cts;
ctts_entries[0].duration = track->cluster[0].cts;
for (i=1; i<track->entry; i++) {
int cl = i / MOV_INDEX_CLUSTER_SIZE;
int id = i % MOV_INDEX_CLUSTER_SIZE;
if (track->cluster[cl][id].cts == ctts_entries[entries].duration) {
if (track->cluster[i].cts == ctts_entries[entries].duration) {
ctts_entries[entries].count++; /* compress */
} else {
entries++;
ctts_entries[entries].duration = track->cluster[cl][id].cts;
ctts_entries[entries].duration = track->cluster[i].cts;
ctts_entries[entries].count = 1;
}
}
@ -1509,7 +1496,6 @@ static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
ByteIOContext *pb = &s->pb;
MOVTrack *trk = &mov->tracks[pkt->stream_index];
AVCodecContext *enc = trk->enc;
int cl, id;
unsigned int samplesInChunk = 0;
int size= pkt->size;
@ -1568,29 +1554,22 @@ static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
size = pkt->size;
}
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->entry % MOV_INDEX_CLUSTER_SIZE)) {
trk->cluster = av_realloc(trk->cluster, (trk->entry + MOV_INDEX_CLUSTER_SIZE) * sizeof(*trk->cluster));
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;
}
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;
trk->cluster[trk->entry].pos = url_ftell(pb);
trk->cluster[trk->entry].samplesInChunk = samplesInChunk;
trk->cluster[trk->entry].size = size;
trk->cluster[trk->entry].entries = samplesInChunk;
if(enc->codec_type == CODEC_TYPE_VIDEO) {
if (pkt->dts != pkt->pts)
trk->hasBframes = 1;
trk->cluster[cl][id].cts = pkt->pts - pkt->dts;
trk->cluster[cl][id].key_frame = !!(pkt->flags & PKT_FLAG_KEY);
if(trk->cluster[cl][id].key_frame)
trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
trk->cluster[trk->entry].key_frame = !!(pkt->flags & PKT_FLAG_KEY);
if(trk->cluster[trk->entry].key_frame)
trk->hasKeyframes++;
}
trk->entry++;
@ -1608,7 +1587,7 @@ static int mov_write_trailer(AVFormatContext *s)
MOVContext *mov = s->priv_data;
ByteIOContext *pb = &s->pb;
int res = 0;
int i, j;
int i;
offset_t moov_pos = url_ftell(pb);
@ -1628,14 +1607,10 @@ static int mov_write_trailer(AVFormatContext *s)
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);
av_freep(&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);