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snow: move init code that depends on picture paramaters to after these parameters are known.

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This should fix debug 2048 amongth other things

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-07-04 00:55:00 +02:00
parent 93d672967d
commit 5eb4af6c59
2 changed files with 21 additions and 11 deletions
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29
libavcodec/snow.c
View File

@ -394,8 +394,7 @@ mca( 8, 8,8)
av_cold int ff_snow_common_init(AVCodecContext *avctx){
SnowContext *s = avctx->priv_data;
int width, height;
int i, j, ret;
int emu_buf_size;
int i, j;
s->avctx= avctx;
s->max_ref_frames=1; //just make sure its not an invalid value in case of no initial keyframe
@ -458,14 +457,6 @@ av_cold int ff_snow_common_init(AVCodecContext *avctx){
for(j=0; j<MAX_REF_FRAMES; j++)
ff_scale_mv_ref[i][j] = 256*(i+1)/(j+1);
if ((ret = s->avctx->get_buffer(s->avctx, &s->mconly_picture)) < 0) {
// av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
// return ret;
}
FF_ALLOCZ_OR_GOTO(avctx, s->scratchbuf, FFMAX(s->mconly_picture.linesize[0], 2*width+256)*7*MB_SIZE, fail);
emu_buf_size = FFMAX(s->mconly_picture.linesize[0], 2*width+256) * (2 * MB_SIZE + HTAPS_MAX - 1);
FF_ALLOC_OR_GOTO(avctx, s->emu_edge_buffer, emu_buf_size, fail);
return 0;
fail:
return AVERROR(ENOMEM);
@ -474,6 +465,22 @@ fail:
int ff_snow_common_init_after_header(AVCodecContext *avctx) {
SnowContext *s = avctx->priv_data;
int plane_index, level, orientation;
int ret, emu_buf_size;
if(!s->scratchbuf) {
if ((ret = s->avctx->get_buffer(s->avctx, &s->mconly_picture)) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
FF_ALLOCZ_OR_GOTO(avctx, s->scratchbuf, FFMAX(s->mconly_picture.linesize[0], 2*avctx->width+256)*7*MB_SIZE, fail);
emu_buf_size = FFMAX(s->mconly_picture.linesize[0], 2*avctx->width+256) * (2 * MB_SIZE + HTAPS_MAX - 1);
FF_ALLOC_OR_GOTO(avctx, s->emu_edge_buffer, emu_buf_size, fail);
}
if(s->mconly_picture.format != avctx->pix_fmt) {
av_log(avctx, AV_LOG_ERROR, "pixel format changed\n");
return AVERROR_INVALIDDATA;
}
for(plane_index=0; plane_index<3; plane_index++){
int w= s->avctx->width;
@ -522,6 +529,8 @@ int ff_snow_common_init_after_header(AVCodecContext *avctx) {
}
return 0;
fail:
return AVERROR(ENOMEM);
}
#define USE_HALFPEL_PLANE 0

3
libavcodec/snowdec.c
View File

@ -406,7 +406,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
s->current_picture.pict_type= AV_PICTURE_TYPE_I; //FIXME I vs. P
if(decode_header(s)<0)
return -1;
ff_snow_common_init_after_header(avctx);
if ((res=ff_snow_common_init_after_header(avctx)) < 0)
return res;
// realloc slice buffer for the case that spatial_decomposition_count changed
ff_slice_buffer_destroy(&s->sb);