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tscc: employ more meaningful return values 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2012-07-21 04:16:26 +00:00
parent 7c71f8e0ec
commit 1aeb87fa07
1 changed files with 8 additions and 8 deletions
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16
libavcodec/tscc.c
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@ -77,22 +77,22 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
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 = 3;
c->pic.buffer_hints = FF_BUFFER_HINTS_VALID;
if(avctx->get_buffer(avctx, &c->pic) < 0){
if((ret = avctx->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(EINVAL);
}
c->zstream.next_in = encoded;
c->zstream.avail_in = len;
@ -102,7 +102,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
// 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(EINVAL);
}
@ -157,7 +157,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
break;
case 32: avctx->pix_fmt = 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_PATCHWELCOME;
}
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
@ -167,7 +167,7 @@ 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);
}
}
@ -177,7 +177,7 @@ 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(ENOMEM);
}
return 0;