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avutil/hwcontext_vaapi: fix SEGV in vaTerminate when vaInitialize fails 

Program terminated with signal SIGSEGV, Segmentation fault.
  #0  0x0000000000aff8a4 in vaTerminate ()
  #1  0x0000000000ae50ce in vaapi_device_free (ctx=<optimized out>) at libavutil/hwcontext_vaapi.c:882
  #2  0x0000000000ae1f9e in hwdevice_ctx_free (opaque=<optimized out>, data=<optimized out>) at libavutil/hwcontext.c:66
  #3  0x0000000000ad856f in buffer_replace (src=0x0, dst=0x7fffa26ef1b8) at libavutil/buffer.c:119
  #4  av_buffer_unref (buf=buf@entry=0x7fffa26ef1f8) at libavutil/buffer.c:129
  #5  0x0000000000ae299f in av_hwdevice_ctx_create (pdevice_ref=0x170ac50 <hw_device_ctx>, type=type@entry=AV_HWDEVICE_TYPE_VAAPI, device=<optimized out>,
      opts=opts@entry=0x0, flags=flags@entry=0) at libavutil/hwcontext.c:494
  #6  0x0000000000400968 in vaapi_device_init (device=<optimized out>) at ffmpeg_vaapi.c:223

Signed-off-by: Mark Thompson <sw@jkqxz.net>
This commit is contained in:
Aman Gupta 2017-02-02 15:24:33 -08:00 committed by Mark Thompson
parent ad7a3f5294
commit 3606602f11
1 changed files with 1 additions and 2 deletions
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3
libavutil/hwcontext_vaapi.c
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@ -961,14 +961,13 @@ static int vaapi_device_create(AVHWDeviceContext *ctx, const char *device,
return AVERROR(EINVAL);
}
hwctx->display = display;
vas = vaInitialize(display, &major, &minor);
if (vas != VA_STATUS_SUCCESS) {
av_log(ctx, AV_LOG_ERROR, "Failed to initialise VAAPI "
"connection: %d (%s).\n", vas, vaErrorStr(vas));
return AVERROR(EIO);
}
hwctx->display = display;
av_log(ctx, AV_LOG_VERBOSE, "Initialised VAAPI connection: "
"version %d.%d\n", major, minor);