Il giorno gio, 23/07/2009 alle 14.22 -0300, Dâniel Fraga ha scritto:
> On Wed, 22 Jul 2009 11:13:36 +0200
> Nico Sabbi <Nicola.Sabbi@xxxxxxxx> wrote:
>
> > in order to fix this I'll have to do something very nasty: hardcode
> > substream_ids to codec type when there's and HDMV descriptor. Horrid,
> > but it's the only way
>
> I don't know if it's related but "Christian P. Schmidt"
> <schmidt@xxxxxxxxx> posted a patch on the ffmpeg devel list:
>
> "Patch for LPCM in mpeg-ts (as seen on bluray)"
>
The attached quick and dirty patch detects the MLP stream with -ausid
0x72,
but the decoder doesn't even start:
[mlp @ 0xb7a660]There must be no extraword for MLP.
Unknown/missing audio format -> no sound
ADecoder init failed :(
Cannot find codec for audio format 0x20504C4D.
I don't even know what it's complaining about, maybe an extension that
ffmlp doesn't handle?
Index: libmpdemux/demux_ts.c
===================================================================
--- libmpdemux/demux_ts.c (revisione 29438)
+++ libmpdemux/demux_ts.c (copia locale)
@@ -77,6 +77,7 @@
AUDIO_DTS = 0x2001,
AUDIO_LPCM_BE = 0x10001,
AUDIO_AAC = mmioFOURCC('M', 'P', '4', 'A'),
+ AUDIO_MLP = mmioFOURCC('M', 'L', 'P', ' '),
SPU_DVD = 0x3000000,
SPU_DVB = 0x3000001,
PES_PRIVATE1 = 0xBD00000,
@@ -244,7 +245,7 @@
} TS_pids_t;
-#define IS_AUDIO(x) (((x) == AUDIO_MP2) || ((x) == AUDIO_A52) || ((x) == AUDIO_LPCM_BE) || ((x) == AUDIO_AAC) || ((x) == AUDIO_DTS))
+#define IS_AUDIO(x) (((x) == AUDIO_MP2) || ((x) == AUDIO_A52) || ((x) == AUDIO_LPCM_BE) || ((x) == AUDIO_AAC) || ((x) == AUDIO_DTS) || ((x) == AUDIO_MLP))
#define IS_VIDEO(x) (((x) == VIDEO_MPEG1) || ((x) == VIDEO_MPEG2) || ((x) == VIDEO_MPEG4) || ((x) == VIDEO_H264) || ((x) == VIDEO_AVC) || ((x) == VIDEO_VC1))
static int ts_parse(demuxer_t *demuxer, ES_stream_t *es, unsigned char *packet, int probe);
@@ -871,6 +872,8 @@
mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO LPCM(pid=%d)", param->apid);
else if(param->atype == AUDIO_AAC)
mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO AAC(pid=%d)", param->apid);
+ else if(param->atype == AUDIO_MLP)
+ mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO MLP(pid=%d)", param->apid);
else
{
audio_found = 0;
@@ -1410,8 +1413,14 @@
if(stream_id==0xfd)
{
int ssid = parse_pes_extension_fields(p, pkt_len);
+ //fprintf(stderr, "\r\nssid: %d, 0x%x\r\n", ssid, ssid);
if((audio_substream_id!=-1) && (ssid != audio_substream_id))
return 0;
+ if(ssid == 0x72)
+ {
+ es->type = type_from_pmt = AUDIO_MLP;
+ //fprintf(stderr, "\r\nFORZO MLP\r\n");
+ }
}
p += header_len + 9;
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