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Code Issues Releases Activity

nuv: return meaningful error codes.

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This commit is contained in:
Anton Khirnov 2012-11-17 18:07:42 +01:00
parent a1c525f7eb
commit 3344f5cb74
1 changed files with 17 additions and 13 deletions
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30
libavcodec/nuv.c
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@ -87,7 +87,7 @@ static int get_quant(AVCodecContext *avctx, NuvContext *c, const uint8_t *buf,
int i;
if (size < 2 * 64 * 4) {
av_log(avctx, AV_LOG_ERROR, "insufficient rtjpeg quant data\n");
return -1;
return AVERROR_INVALIDDATA;
}
for (i = 0; i < 64; i++, buf += 4)
c->lq[i] = AV_RL32(buf);
@ -113,13 +113,15 @@ static int codec_reinit(AVCodecContext *avctx, int width, int height,
int quality)
{
NuvContext *c = avctx->priv_data;
int ret;
width = FFALIGN(width, 2);
height = FFALIGN(height, 2);
if (quality >= 0)
get_quant_quality(c, quality);
if (width != c->width || height != c->height) {
if (av_image_check_size(height, width, 0, avctx) < 0)
return 0;
if ((ret = av_image_check_size(height, width, 0, avctx)) < 0)
return ret;
avctx->width = c->width = width;
avctx->height = c->height = height;
av_fast_malloc(&c->decomp_buf, &c->decomp_size,
@ -127,7 +129,7 @@ static int codec_reinit(AVCodecContext *avctx, int width, int height,
if (!c->decomp_buf) {
av_log(avctx, AV_LOG_ERROR,
"Can't allocate decompression buffer.\n");
return 0;
return AVERROR(ENOMEM);
}
ff_rtjpeg_decode_init(&c->rtj, &c->dsp, c->width, c->height,
c->lq, c->cq);
@ -135,7 +137,7 @@ static int codec_reinit(AVCodecContext *avctx, int width, int height,
ff_rtjpeg_decode_init(&c->rtj, &c->dsp, c->width, c->height,
c->lq, c->cq);
return 1;
return 0;
}
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
@ -159,7 +161,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
if (buf_size < 12) {
av_log(avctx, AV_LOG_ERROR, "coded frame too small\n");
return -1;
return AVERROR_INVALIDDATA;
}
// codec data (rtjpeg quant tables)
@ -178,7 +180,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
if (buf[0] != 'V' || buf_size < 12) {
av_log(avctx, AV_LOG_ERROR, "not a nuv video frame\n");
return -1;
return AVERROR_INVALIDDATA;
}
comptype = buf[1];
switch (comptype) {
@ -213,8 +215,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
w = AV_RL16(&buf[6]);
h = AV_RL16(&buf[8]);
q = buf[10];
if (!codec_reinit(avctx, w, h, q))
return -1;
if ((result = codec_reinit(avctx, w, h, q)) < 0)
return result;
buf = &buf[RTJPEG_HEADER_SIZE];
buf_size -= RTJPEG_HEADER_SIZE;
}
@ -227,7 +229,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
result = avctx->reget_buffer(avctx, &c->pic);
if (result < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
return result;
}
c->pic.pict_type = keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
@ -258,7 +260,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
break;
default:
av_log(avctx, AV_LOG_ERROR, "unknown compression\n");
return -1;
return AVERROR_INVALIDDATA;
}
*picture = c->pic;
@ -269,6 +271,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
static av_cold int decode_init(AVCodecContext *avctx)
{
NuvContext *c = avctx->priv_data;
int ret;
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
c->pic.data[0] = NULL;
c->decomp_buf = NULL;
@ -283,8 +287,8 @@ static av_cold int decode_init(AVCodecContext *avctx)
ff_dsputil_init(&c->dsp, avctx);
if (!codec_reinit(avctx, avctx->width, avctx->height, -1))
return 1;
if ((ret = codec_reinit(avctx, avctx->width, avctx->height, -1)) < 0)
return ret;
return 0;
}