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Remove lowres video decoding

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This feature is complex, of questionable utility, and slows down
normal decoding.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2012-04-12 13:55:49 +01:00
parent 95510be8c3
commit 2bcbd98459
34 changed files with 56 additions and 755 deletions
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13
libavcodec/utils.c
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@ -143,8 +143,8 @@ unsigned avcodec_get_edge_width(void)
void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
s->coded_width = width;
s->coded_height= height;
s->width = -((-width )>>s->lowres);
s->height= -((-height)>>s->lowres);
s->width = width;
s->height = height;
}
#define INTERNAL_BUFFER_SIZE (32+1)
@ -228,9 +228,8 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
*width = FFALIGN(*width , w_align);
*height= FFALIGN(*height, h_align);
if(s->codec_id == CODEC_ID_H264 || s->lowres)
if (s->codec_id == CODEC_ID_H264)
*height+=2; // some of the optimized chroma MC reads one line too much
// which is also done in mpeg decoders with lowres > 0
for (i = 0; i < 4; i++)
linesize_align[i] = STRIDE_ALIGN;
@ -741,12 +740,6 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVD
if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
avctx->thread_count = 1;
if (avctx->codec->max_lowres < avctx->lowres) {
av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
avctx->codec->max_lowres);
ret = AVERROR(EINVAL);
goto free_and_end;
}
if (av_codec_is_encoder(avctx->codec)) {
int i;
if (avctx->codec->sample_fmts) {