[MPlayer-dev-eng] [PATCH] To Play TTA in MKA
zo came
camezo at gmail.com
Tue Nov 21 11:09:56 CET 2006
> this is not valid c code, __attribute__((__packed__)) will only work with
> gcc and compatible compilers, yes i know mplayer is full of this shit but
> IMHO we shouldnt add more especially as ita trivial to do this portably
Okay, I made a code that removed it.
And, I fixed a bug about samples data length with ceil().
[TEST]
Download from http://www.matroska.org/tta/
sample_44_2_16.tta and sample_44_2_16_TTA.mka
mplayer -ao pcm:file=tta sample_44_2_16.tta
mplayer -ao pcm:file=mka sample_44_2_16_TTA.mka
diff tta mka
"tta" and "mka" became the same data.
thanks
-------------- next part --------------
Index: libmpdemux/matroska.h
===================================================================
--- libmpdemux/matroska.h (revision 21118)
+++ libmpdemux/matroska.h (working copy)
@@ -35,6 +35,7 @@
#define MKV_A_QDMC "A_QUICKTIME/QDMC"
#define MKV_A_QDMC2 "A_QUICKTIME/QDM2"
#define MKV_A_FLAC "A_FLAC"
+#define MKV_A_TTA "A_TTA1"
#define MKV_V_MSCOMP "V_MS/VFW/FOURCC"
#define MKV_V_REALV10 "V_REAL/RV10"
Index: libmpdemux/demux_mkv.c
===================================================================
--- libmpdemux/demux_mkv.c (revision 21118)
+++ libmpdemux/demux_mkv.c (working copy)
@@ -2068,6 +2068,10 @@
}
track->a_formattag = mmioFOURCC ('f', 'L', 'a', 'C');
}
+ else if (!strcmp(track->codec_id, MKV_A_TTA))
+ {
+ track->a_formattag = 0x77A1;
+ }
else if (track->private_size >= sizeof (real_audio_v4_props_t))
{
if (!strcmp(track->codec_id, MKV_A_REAL28))
@@ -2307,6 +2311,31 @@
dp->flags = 0;
ds_add_packet (demuxer->audio, dp);
}
+ else if (track->a_formattag == 0x77A1) /* TTA */
+ {
+ /* Create TTA Header. not sure */
+ enum { TTAH_FORMAT=0, TTAH_AFORMAT=4, TTAH_CHANNELS=6, TTAH_BPS=8,
+ TTAH_SFREQ=10, TTAH_SLEN=14, TTAH_CRC=18, TTAH_SEEKTABLE=22,
+ TTAH_SEEKTABLE2=26, TTAH_SIZE=30 };
+ sh_a->wf->nAvgBytesPerSec = sh_a->channels * sh_a->samplerate*2;
+ sh_a->wf->nBlockAlign = sh_a->wf->nAvgBytesPerSec;
+ sh_a->format = mmioFOURCC('T', 'T', 'A', '1');
+ sh_a->wf->cbSize = TTAH_SIZE; /* need over 30 */
+ sh_a->wf = realloc (sh_a->wf,
+ sizeof (WAVEFORMATEX) + sh_a->wf->cbSize);
+#define TTAH_SET16(a,b) {uint16_t w16=le2me_16(b); memcpy((char *)(sh_a->wf + 1)+(a),&w16,2);}
+#define TTAH_SET32(a,b) {uint32_t w32=le2me_32(b); memcpy((char *)(sh_a->wf + 1)+(a),&w32,4);}
+ memcpy((char *)(sh_a->wf + 1)+TTAH_FORMAT,&(sh_a->format),4);
+#define FORMAT_INT 1
+ TTAH_SET16(TTAH_AFORMAT,FORMAT_INT);
+ TTAH_SET16(TTAH_CHANNELS,track->a_channels);
+ TTAH_SET16(TTAH_BPS,track->a_bps);
+ TTAH_SET32(TTAH_SFREQ,track->a_sfreq);
+ TTAH_SET32(TTAH_SLEN,(uint32_t)ceil(mkv_d->duration * track->a_sfreq));
+ TTAH_SET32(TTAH_CRC,0); /*dummy*/
+ TTAH_SET32(TTAH_SEEKTABLE,0); /*dummy*/
+ TTAH_SET32(TTAH_SEEKTABLE2,0); /*dummy*/
+ }
else if (!track->ms_compat || (track->private_size < sizeof(WAVEFORMATEX)))
{
free_sh_audio(demuxer, track->tnum);
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