virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

factorize (untested)

Browse Source 
Originally committed as revision 6633 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-10-10 23:45:12 +00:00
parent effdc8ef2a
commit b1bf48aa91
1 changed files with 28 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

85
libavformat/amr.c
View File

@ -134,78 +134,49 @@ static int amr_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
AVCodecContext *enc = s->streams[0]->codec;
int read, size, toc, mode;
if (url_feof(&s->pb))
{
return AVERROR_IO;
}
toc=get_byte(&s->pb);
mode = (toc >> 3) & 0x0F;
if (enc->codec_id == CODEC_ID_AMR_NB)
{
static const uint8_t packed_size[16] = {12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0};
uint8_t toc, q, ft;
int read;
int size;
if (url_feof(&s->pb))
{
return AVERROR_IO;
}
toc=get_byte(&s->pb);
q = (toc >> 2) & 0x01;
ft = (toc >> 3) & 0x0F;
size=packed_size[ft];
if (av_new_packet(pkt, size+1))
{
return AVERROR_IO;
}
pkt->stream_index = 0;
pkt->pos= url_ftell(&s->pb);
pkt->data[0]=toc;
read = get_buffer(&s->pb, pkt->data+1, size);
if (read != size)
{
av_free_packet(pkt);
return AVERROR_IO;
}
size=packed_size[mode]+1;
}
else if(enc->codec_id == CODEC_ID_AMR_WB)
{
static uint8_t packed_size[16] = {18, 24, 33, 37, 41, 47, 51, 59, 61, 6, 6, 0, 0, 0, 1, 1};
uint8_t toc, mode;
int read;
int size;
if (url_feof(&s->pb))
{
return AVERROR_IO;
}
toc=get_byte(&s->pb);
mode = (uint8_t)((toc >> 3) & 0x0F);
size = packed_size[mode];
if ( (size==0) || av_new_packet(pkt, size))
{
return AVERROR_IO;
}
pkt->stream_index = 0;
pkt->pos= url_ftell(&s->pb);
pkt->data[0]=toc;
read = get_buffer(&s->pb, pkt->data+1, size-1);
if (read != (size-1))
{
av_free_packet(pkt);
return AVERROR_IO;
}
size=packed_size[mode];
}
else
{
assert(0);
}
if ( (size==0) || av_new_packet(pkt, size))
{
return AVERROR_IO;
}
pkt->stream_index = 0;
pkt->pos= url_ftell(&s->pb);
pkt->data[0]=toc;
read = get_buffer(&s->pb, pkt->data+1, size-1);
if (read != size-1)
{
av_free_packet(pkt);
return AVERROR_IO;
}
return 0;
}