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8bps: return meaningful error codes.

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This commit is contained in:
Anton Khirnov 2012-11-14 08:59:03 +01:00
parent f7d15d2f42
commit 313da47aa1
1 changed files with 6 additions and 5 deletions
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11
libavcodec/8bps.c
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@ -69,15 +69,16 @@ static int decode_frame(AVCodecContext *avctx, void *data,
unsigned int px_inc; unsigned int px_inc;
unsigned int planes = c->planes; unsigned int planes = c->planes;
unsigned char *planemap = c->planemap; unsigned char *planemap = c->planemap;
int ret;
if (c->pic.data[0]) if (c->pic.data[0])
avctx->release_buffer(avctx, &c->pic); avctx->release_buffer(avctx, &c->pic);
c->pic.reference = 0; c->pic.reference = 0;
c->pic.buffer_hints = FF_BUFFER_HINTS_VALID; 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"); av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1; return ret;
} }
/* Set data pointer after line lengths */ /* Set data pointer after line lengths */
@ -101,14 +102,14 @@ static int decode_frame(AVCodecContext *avctx, void *data,
/* Decode a row of this plane */ /* Decode a row of this plane */
while (dlen > 0) { while (dlen > 0) {
if (dp + 1 >= buf + buf_size) if (dp + 1 >= buf + buf_size)
return -1; return AVERROR_INVALIDDATA;
if ((count = *dp++) <= 127) { if ((count = *dp++) <= 127) {
count++; count++;
dlen -= count + 1; dlen -= count + 1;
if (pixptr + count * px_inc > pixptr_end) if (pixptr + count * px_inc > pixptr_end)
break; break;
if (dp + count > buf + buf_size) if (dp + count > buf + buf_size)
return -1; return AVERROR_INVALIDDATA;
while (count--) { while (count--) {
*pixptr = *dp++; *pixptr = *dp++;
pixptr += px_inc; pixptr += px_inc;
@ -185,7 +186,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
default: default:
av_log(avctx, AV_LOG_ERROR, "Error: Unsupported color depth: %u.\n", av_log(avctx, AV_LOG_ERROR, "Error: Unsupported color depth: %u.\n",
avctx->bits_per_coded_sample); avctx->bits_per_coded_sample);
return -1; return AVERROR_INVALIDDATA;
} }
return 0; return 0;