av_cold int ff_snow_common_init(AVCodecContext *avctx){
SnowContext *s = avctx->priv_data;
int width, height;
- int i, j;
+ int i, j, ret;
s->avctx= avctx;
s->max_ref_frames=1; //just make sure its not an invalid value in case of no initial keyframe
width= s->avctx->width;
height= s->avctx->height;
- s->spatial_idwt_buffer= av_mallocz(width*height*sizeof(IDWTELEM));
- s->spatial_dwt_buffer= av_mallocz(width*height*sizeof(DWTELEM)); //FIXME this does not belong here
- s->temp_dwt_buffer = av_mallocz(width * sizeof(DWTELEM));
- s->temp_idwt_buffer = av_mallocz(width * sizeof(IDWTELEM));
+ FF_ALLOCZ_OR_GOTO(avctx, s->spatial_idwt_buffer, width * height * sizeof(IDWTELEM), fail);
+ FF_ALLOCZ_OR_GOTO(avctx, s->spatial_dwt_buffer, width * height * sizeof(DWTELEM), fail); //FIXME this does not belong here
+ FF_ALLOCZ_OR_GOTO(avctx, s->temp_dwt_buffer, width * sizeof(DWTELEM), fail);
+ FF_ALLOCZ_OR_GOTO(avctx, s->temp_idwt_buffer, width * sizeof(IDWTELEM), fail);
for(i=0; i<MAX_REF_FRAMES; i++)
for(j=0; j<MAX_REF_FRAMES; j++)
ff_scale_mv_ref[i][j] = 256*(i+1)/(j+1);
- s->avctx->get_buffer(s->avctx, &s->mconly_picture);
- s->scratchbuf = av_malloc(s->mconly_picture.linesize[0]*7*MB_SIZE);
+ 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_ALLOC_OR_GOTO(avctx, s->scratchbuf, s->mconly_picture.linesize[0]*7*MB_SIZE, fail);
return 0;
+fail:
+ return AVERROR(ENOMEM);
}
int ff_snow_common_init_after_header(AVCodecContext *avctx) {
static av_cold int encode_init(AVCodecContext *avctx)
{
SnowContext *s = avctx->priv_data;
- int plane_index;
+ int plane_index, ret;
if(avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){
av_log(avctx, AV_LOG_ERROR, "This codec is under development, files encoded with it may not be decodable with future versions!!!\n"
s->plane[plane_index].fast_mc= 1;
}
- ff_snow_common_init(avctx);
+ if ((ret = ff_snow_common_init(avctx)) < 0) {
+ ff_snow_common_end(avctx->priv_data);
+ return ret;
+ }
ff_snow_alloc_blocks(s);
s->version=0;