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lcldec: return meaningful error codes.

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This commit is contained in:
Anton Khirnov 2012-11-18 18:53:46 +01:00
parent 01cbc6f6ad
commit 14cf33e957
1 changed files with 13 additions and 14 deletions
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27
libavcodec/lcldec.c
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@ -132,7 +132,7 @@ static int zlib_decomp(AVCodecContext *avctx, const uint8_t *src, int src_len, i
int zret = inflateReset(&c->zstream);
if (zret != Z_OK) {
av_log(avctx, AV_LOG_ERROR, "Inflate reset error: %d\n", zret);
return -1;
return AVERROR_UNKNOWN;
}
c->zstream.next_in = src;
c->zstream.avail_in = src_len;
@ -141,12 +141,12 @@ static int zlib_decomp(AVCodecContext *avctx, const uint8_t *src, int src_len, i
zret = inflate(&c->zstream, Z_FINISH);
if (zret != Z_OK && zret != Z_STREAM_END) {
av_log(avctx, AV_LOG_ERROR, "Inflate error: %d\n", zret);
return -1;
return AVERROR_UNKNOWN;
}
if (expected != (unsigned int)c->zstream.total_out) {
av_log(avctx, AV_LOG_ERROR, "Decoded size differs (%d != %lu)\n",
expected, c->zstream.total_out);
return -1;
return AVERROR_UNKNOWN;
}
return c->zstream.total_out;
}
@ -172,7 +172,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
unsigned int height = avctx->height; // Real image height
unsigned int mszh_dlen;
unsigned char yq, y1q, uq, vq;
int uqvq;
int uqvq, ret;
unsigned int mthread_inlen, mthread_outlen;
unsigned int len = buf_size;
@ -181,9 +181,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
c->pic.reference = 0;
c->pic.buffer_hints = FF_BUFFER_HINTS_VALID;
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;
}
outptr = c->pic.data[0]; // Output image pointer
@ -202,14 +202,14 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
if (mthread_outlen != mszh_dlen) {
av_log(avctx, AV_LOG_ERROR, "Mthread1 decoded size differs (%d != %d)\n",
mthread_outlen, mszh_dlen);
return -1;
return AVERROR_INVALIDDATA;
}
mszh_dlen = mszh_decomp(encoded + 8 + mthread_inlen, len - 8 - mthread_inlen,
c->decomp_buf + mthread_outlen, c->decomp_size - mthread_outlen);
if (mthread_outlen != mszh_dlen) {
av_log(avctx, AV_LOG_ERROR, "Mthread2 decoded size differs (%d != %d)\n",
mthread_outlen, mszh_dlen);
return -1;
return AVERROR_INVALIDDATA;
}
encoded = c->decomp_buf;
len = c->decomp_size;
@ -218,7 +218,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
if (c->decomp_size != mszh_dlen) {
av_log(avctx, AV_LOG_ERROR, "Decoded size differs (%d != %d)\n",
c->decomp_size, mszh_dlen);
return -1;
return AVERROR_INVALIDDATA;
}
encoded = c->decomp_buf;
len = mszh_dlen;
@ -249,7 +249,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
}
default:
av_log(avctx, AV_LOG_ERROR, "BUG! Unknown MSZH compression in frame decoder.\n");
return -1;
return AVERROR_INVALIDDATA;
}
break;
#if CONFIG_ZLIB_DECODER
@ -266,7 +266,6 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
break;
}
} else if (c->flags & FLAG_MULTITHREAD) {
int ret;
mthread_inlen = AV_RL32(encoded);
mthread_inlen = FFMIN(mthread_inlen, len - 8);
mthread_outlen = AV_RL32(encoded+4);
@ -286,7 +285,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
#endif
default:
av_log(avctx, AV_LOG_ERROR, "BUG! Unknown codec in frame decoder compression switch.\n");
return -1;
return AVERROR_INVALIDDATA;
}
@ -370,7 +369,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
break;
default:
av_log(avctx, AV_LOG_ERROR, "BUG! Unknown imagetype in pngfilter switch.\n");
return -1;
return AVERROR_INVALIDDATA;
}
}
@ -458,7 +457,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
break;
default:
av_log(avctx, AV_LOG_ERROR, "BUG! Unknown imagetype in image decoder.\n");
return -1;
return AVERROR_INVALIDDATA;
}
*got_frame = 1;