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Bug 3899

Summary: playmus doesn't play certain wav files
Product: SDL_mixer Reporter: Ozkan Sezer <sezeroz>
Component: miscAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: unspecified   
Hardware: All   
OS: All   
Attachments: sample2.wav

Description Ozkan Sezer 2017-10-21 09:49:04 UTC 
Created attachment 3021 [details]
sample2.wav

Attached sample2.wav was resampled from SDL2/test/sample.wav
in the following way:

$ ./testresample sample.wav sample2.wav 8000 1
$ file sample2.wav
sample2.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 8000 Hz

The playmus example program doesn't play this 8KHz mono wav
properly:  I hear about half a second output and then it quits.
playwave is OK with it, though.
Comment 1 Sam Lantinga 2017-10-21 09:54:59 UTC 
This is fixed in Mercurial, thanks!
Comment 2 Ozkan Sezer 2017-10-21 10:16:08 UTC 
> This is fixed in Mercurial, thanks!

No, it is not:

INFO: Opened audio at 22050 Hz 16 bit stereo 4096 bytes audio buffer
==13236== Invalid read of size 4
==13236==    at 0x405B3CA: SDL_ReadLE32_REAL (SDL_rwops.c:788)
==13236==    by 0x4042BBD: SDL_ReadLE32 (SDL_dynapi_procs.h:390)
==13236==    by 0x401A8EF: WAV_CreateFromRW (music_wav.c:436)
==13236==    by 0x40162D6: Mix_LoadMUSType_RW (music.c:517)
==13236==    by 0x40165D2: Mix_LoadMUS (music.c:477)
==13236==    by 0x8049254: main (playmus.c:210)
==13236==  Address 0x8 is not stack'd, malloc'd or (recently) free'd
==13236== 
==13236== Process terminating with default action of signal 11 (SIGSEGV)
==13236==  Access not within mapped region at address 0x8
==13236==    at 0x405B3CA: SDL_ReadLE32_REAL (SDL_rwops.c:788)
==13236==    by 0x4042BBD: SDL_ReadLE32 (SDL_dynapi_procs.h:390)
==13236==    by 0x401A8EF: WAV_CreateFromRW (music_wav.c:436)
==13236==    by 0x40162D6: Mix_LoadMUSType_RW (music.c:517)
==13236==    by 0x40165D2: Mix_LoadMUS (music.c:477)
==13236==    by 0x8049254: main (playmus.c:210)
==13236== 
==13236== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 71 from 1)
==13236== malloc/free: in use at exit: 207,906 bytes in 809 blocks.
==13236== malloc/free: 835 allocs, 26 frees, 210,451 bytes allocated.
==13236== For counts of detected errors, rerun with: -v
==13236== searching for pointers to 809 not-freed blocks.
==13236== checked 10,955,900 bytes.
==13236== 
==13236== LEAK SUMMARY:
==13236==    definitely lost: 0 bytes in 0 blocks.
==13236==      possibly lost: 136 bytes in 1 blocks.
==13236==    still reachable: 207,770 bytes in 808 blocks.
==13236==         suppressed: 0 bytes in 0 blocks.
==13236== Rerun with --leak-check=full to see details of leaked memory.

In fact other wav files fail the same way too.

hg tip seems broken in other ways too: e.g. mp3 files don't play.

SDL_mixer configured like:  --disable-music-mod-modplug \
   --enable-music-mp3-mad-gpl --enable-music-mod-mikmod
Comment 3 Sam Lantinga 2017-10-21 10:52:06 UTC 
The crash is fixed here:
https://hg.libsdl.org/SDL_mixer/rev/0a0a27bbfdb1
Comment 4 Ozkan Sezer 2017-10-21 10:56:02 UTC 
> The crash is fixed here:
> https://hg.libsdl.org/SDL_mixer/rev/0a0a27bbfdb1

Thanks, it is fixed.

Now remains the issue of mp3 files not playing (mad backend.)
Comment 5 Sam Lantinga 2017-10-21 11:02:15 UTC 
MP3 playback is fixed here:
https://hg.libsdl.org/SDL_mixer/rev/cac4c0288bbd

If you see other issues that aren't related to the WAVE playback, please report them separately.

Thanks!