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cscd: return meaningful error codes.

This commit is contained in:
Anton Khirnov 2012-11-17 15:45:41 +01:00
parent 67360ccd51
commit 8fd4d1f9b9
1 changed files with 6 additions and 5 deletions
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11
libavcodec/cscd.c
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@ -143,10 +143,11 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
int buf_size = avpkt->size;
CamStudioContext *c = avctx->priv_data;
AVFrame *picture = data;
int ret;
if (buf_size < 2) {
av_log(avctx, AV_LOG_ERROR, "coded frame too small\n");
return -1;
return AVERROR_INVALIDDATA;
}
if (c->pic.data[0])
@ -154,9 +155,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
c->pic.reference = 1;
c->pic.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_READABLE |
FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
if (ff_get_buffer(avctx, &c->pic) < 0) {
if ((ret = ff_get_buffer(avctx, &c->pic)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
return ret;
}
// decompress data
@ -175,12 +176,12 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
break;
#else
av_log(avctx, AV_LOG_ERROR, "compiled without zlib support\n");
return -1;
return AVERROR(ENOSYS);
#endif
}
default:
av_log(avctx, AV_LOG_ERROR, "unknown compression\n");
return -1;
return AVERROR_INVALIDDATA;
}
// flip upside down, add difference frame