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ad_faad: Improve LATM recognition

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Patch by Dan Oscarsson,  Dan d Oscarsson a tieto d com

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@31543 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
cehoyos 2010-06-23 18:44:06 +00:00 committed by Uoti Urpala
parent c795508d5f
commit f455b6e91b
4 changed files with 32 additions and 5 deletions
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5
libfaad2/decoder.c
View File

@ -222,7 +222,7 @@ static int latmCheck(latm_header *latm, bitfile *ld)
int32_t NEAACDECAPI NeAACDecInit(NeAACDecHandle hDecoder, uint8_t *buffer,
uint32_t buffer_size,
uint32_t *samplerate, uint8_t *channels)
uint32_t *samplerate, uint8_t *channels, int latm_stream)
{
uint32_t bits = 0;
bitfile ld;
@ -257,6 +257,9 @@ int32_t NEAACDECAPI NeAACDecInit(NeAACDecHandle hDecoder, uint8_t *buffer,
hDecoder->latm_header_present = 0;
return x;
}
else if (latm_stream) {
return -1;
}
else
/* Check if an ADIF header is present */
if ((buffer[0] == 'A') && (buffer[1] == 'D') &&

3
libfaad2/decoder.h
View File

@ -86,7 +86,8 @@ int32_t NEAACDECAPI NeAACDecInit(NeAACDecHandle hDecoder,
uint8_t *buffer,
uint32_t buffer_size,
uint32_t *samplerate,
uint8_t *channels);
uint8_t *channels,
int latm_stream);
/* Init the library using a DecoderSpecificInfo */
int8_t NEAACDECAPI NeAACDecInit2(NeAACDecHandle hDecoder, uint8_t *pBuffer,

3
libfaad2/neaacdec.h
View File

@ -211,7 +211,8 @@ long NEAACDECAPI NeAACDecInit(NeAACDecHandle hDecoder,
unsigned char *buffer,
unsigned long buffer_size,
unsigned long *samplerate,
unsigned char *channels);
unsigned char *channels,
int latm_stream);
/* Init the library using a DecoderSpecificInfo */
char NEAACDECAPI NeAACDecInit2(NeAACDecHandle hDecoder, unsigned char *pBuffer,

26
libmpcodecs/ad_faad.c
View File

@ -126,6 +126,26 @@ static int init(sh_audio_t *sh)
faacDecSetConfiguration(faac_hdec, faac_conf);
sh->a_in_buffer_len = demux_read_data(sh->ds, sh->a_in_buffer, sh->a_in_buffer_size);
/* init the codec, look for LATM */
faac_init = faacDecInit(faac_hdec, sh->a_in_buffer,
sh->a_in_buffer_len, &faac_samplerate, &faac_channels,1);
if (faac_init < 0 && sh->a_in_buffer_len >= 3 && sh->format == mmioFOURCC('M', 'P', '4', 'L')) {
// working LATM not found at first try, look further on in stream
int i;
for (i = 0; i < 5; i++) {
pos = sh->a_in_buffer_len-3;
memmove(sh->a_in_buffer, &(sh->a_in_buffer[pos]), 3);
sh->a_in_buffer_len = 3;
sh->a_in_buffer_len += demux_read_data(sh->ds,&sh->a_in_buffer[sh->a_in_buffer_len],
sh->a_in_buffer_size - sh->a_in_buffer_len);
faac_init = faacDecInit(faac_hdec, sh->a_in_buffer,
sh->a_in_buffer_len, &faac_samplerate, &faac_channels,1);
if (faac_init >= 0) break;
}
}
if (faac_init < 0) {
pos = aac_probe(sh->a_in_buffer, sh->a_in_buffer_len);
if(pos) {
sh->a_in_buffer_len -= pos;
@ -138,7 +158,8 @@ static int init(sh_audio_t *sh)
/* init the codec */
faac_init = faacDecInit(faac_hdec, sh->a_in_buffer,
sh->a_in_buffer_len, &faac_samplerate, &faac_channels);
sh->a_in_buffer_len, &faac_samplerate, &faac_channels,0);
}
sh->a_in_buffer_len -= (faac_init > 0)?faac_init:0; // how many bytes init consumed
// XXX FIXME: shouldn't we memcpy() here in a_in_buffer ?? --A'rpi
@ -189,7 +210,8 @@ static void uninit(sh_audio_t *sh)
static int aac_sync(sh_audio_t *sh)
{
int pos = 0;
if(!sh->codecdata_len) {
// do not probe LATM, faad does that
if(!sh->codecdata_len && sh->format != mmioFOURCC('M', 'P', '4', 'L')) {
if(sh->a_in_buffer_len < sh->a_in_buffer_size){
sh->a_in_buffer_len +=
demux_read_data(sh->ds,&sh->a_in_buffer[sh->a_in_buffer_len],