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Code Issues Releases Activity

ffv1: Check memory allocations

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Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
Vittorio Giovara 2015-04-09 23:37:59 +02:00 committed by Diego Biurrun
parent 4e54432164
commit 73dacabfc9
1 changed files with 16 additions and 4 deletions
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20
libavcodec/ffv1.c
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@ -187,7 +187,7 @@ int ffv1_init_slice_state(FFV1Context *f, FFV1Context *fs)
av_cold int ffv1_init_slice_contexts(FFV1Context *f)
{
int i;
int i, j;
f->slice_count = f->num_h_slices * f->num_v_slices;
if (f->slice_count <= 0) {
@ -196,13 +196,16 @@ av_cold int ffv1_init_slice_contexts(FFV1Context *f)
}
for (i = 0; i < f->slice_count; i++) {
FFV1Context *fs = av_mallocz(sizeof(*fs));
int sx = i % f->num_h_slices;
int sy = i / f->num_h_slices;
int sxs = f->avctx->width * sx / f->num_h_slices;
int sxe = f->avctx->width * (sx + 1) / f->num_h_slices;
int sys = f->avctx->height * sy / f->num_v_slices;
int sye = f->avctx->height * (sy + 1) / f->num_v_slices;
FFV1Context *fs = av_mallocz(sizeof(*fs));
if (!fs)
goto memfail;
f->slice_context[i] = fs;
memcpy(fs, f, sizeof(*fs));
memset(fs->rc_stat2, 0, sizeof(fs->rc_stat2));
@ -214,10 +217,19 @@ av_cold int ffv1_init_slice_contexts(FFV1Context *f)
fs->sample_buffer = av_malloc(3 * MAX_PLANES * (fs->width + 6) *
sizeof(*fs->sample_buffer));
if (!fs->sample_buffer)
return AVERROR(ENOMEM);
if (!fs->sample_buffer) {
av_free(fs);
goto memfail;
}
}
return 0;
memfail:
for (j = 0; j < i; j++) {
av_free(&f->slice_context[j]->sample_buffer);
av_free(&f->slice_context[j]);
}
return AVERROR(ENOMEM);
}
int ffv1_allocate_initial_states(FFV1Context *f)