[MPlayer-users] DVB stream including LATM AAC Audio issues

[Steven Ellis]

> Il Sunday 20 January 2008 01:18:29 Nico Sabbi ha scritto:
>
>> > initial (but very ugly and messy) patch for faad attached.
>> > All the samples I have decode nicely, but with few errors.
>> > Please, test and report
>>
>> don't forget to apply this one, too:
>>
>
> somewhat cleaner patch; all decoding errors seem to have gone
> this time :)
>

Sorry about a possible repost. Keep using the wrong email account.

Nico - Awesome work. Thank you very much. Almost all of my samples work
perfectly now. I'll grab a bunch of fresh tests tonight from the Auckland
DTT transmissions as all of the channels have now switched to AAC.

Couple of bits of feedback.

1. I needed the following additional patch for my compile to work

Index: libmpcodecs/ad_faad.c
=================================================================== ---
libmpcodecs/ad_faad.c       (revision 25826)
+++ libmpcodecs/ad_faad.c       (working copy)
@@ -26,6 +26,8 @@
 #ifndef USE_FAAD_INTERNAL
 #include <faad.h>
 #else
+#include "libfaad2/common.h"
+#include "libfaad2/bits.h"
 #include "libfaad2/faad.h"
 #endif


2. I had to use the following configure option

./configure --with-extraincdir=../libfaad2


There appeared to be an issue with some of the newer definitions in the
faad2 headers.


I do have one sample that produces a couple of interesting debug message,
but it might be an issue with the broadcaster which is why I want to grab
some fresh samples

Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)

Unsupported LATM configuration: 1 programs/ 42 subframes, 2 layers,
allstreams: 0

LATM PRESENT, srate: 48000, channels: 2
FAAD: compressed input bitrate missing, assuming 128kbit/s!
AUDIO: 48000 Hz, 2 ch, s16le, 128.0 kbit/8.33% (ratio: 16000->192000)
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio)
decoder)
==========================================================================
AO: [oss] 48000Hz 2ch s16le (2 bytes per sample)
Video: no video
Starting playback...

Unsupported LATM configuration: 1 programs/ 42 subframes, 2 layers,
allstreams: 0
A:55137.6 (15:18:57.5) of 2042.8 (34:02.8)  2.9%
Exiting... (Quit)


Steve