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tscc: return meaningful error codes.

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This commit is contained in:
Anton Khirnov 2012-11-20 07:13:49 +01:00
parent b627c3010b
commit ac1e93f555
1 changed files with 8 additions and 8 deletions
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16
libavcodec/tscc.c
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@ -79,22 +79,22 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
CamtasiaContext * const c = avctx->priv_data;
const unsigned char *encoded = buf;
int zret; // Zlib return code
int len = buf_size;
int ret, len = buf_size;
if(c->pic.data[0])
avctx->release_buffer(avctx, &c->pic);
c->pic.reference = 1;
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;
}
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 = encoded;
c->zstream.avail_in = len;
@ -104,7 +104,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
// Z_DATA_ERROR means empty picture
if ((zret != Z_OK) && (zret != Z_STREAM_END) && (zret != Z_DATA_ERROR)) {
av_log(avctx, AV_LOG_ERROR, "Inflate error: %d\n", zret);
return -1;
return AVERROR_UNKNOWN;
}
@ -158,7 +158,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
break;
case 32: avctx->pix_fmt = AV_PIX_FMT_RGB32; break;
default: av_log(avctx, AV_LOG_ERROR, "Camtasia error: unknown depth %i bpp\n", avctx->bits_per_coded_sample);
return -1;
return AVERROR_INVALIDDATA;
}
c->bpp = avctx->bits_per_coded_sample;
// buffer size for RLE 'best' case when 2-byte code precedes each pixel and there may be padding after it too
@ -168,7 +168,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
if (c->decomp_size) {
if ((c->decomp_buf = av_malloc(c->decomp_size)) == NULL) {
av_log(avctx, AV_LOG_ERROR, "Can't allocate decompression buffer.\n");
return 1;
return AVERROR(ENOMEM);
}
}
@ -178,7 +178,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
zret = inflateInit(&c->zstream);
if (zret != Z_OK) {
av_log(avctx, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
return 1;
return AVERROR_UNKNOWN;
}
return 0;