RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

avcodec/mpeg4videodec: Use stack variable for aspect_ratio_info 

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-01-25 13:25:42 +01:00
parent 9288b6366b
commit 30dfd87da1
1 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
libavcodec/mpeg4videodec.c
View File

@ -2215,7 +2215,7 @@ static void extension_and_user_data(MpegEncContext *s, GetBitContext *gb, int id
static int decode_studio_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
{
MpegEncContext *s = &ctx->m;
int width, height;
int width, height, aspect_ratio_info;
int bits_per_raw_sample;
int rgb, chroma_format;
@ -2270,12 +2270,12 @@ static int decode_studio_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
s->height = height;
}
}
s->aspect_ratio_info = get_bits(gb, 4);
if (s->aspect_ratio_info == FF_ASPECT_EXTENDED) {
aspect_ratio_info = get_bits(gb, 4);
if (aspect_ratio_info == FF_ASPECT_EXTENDED) {
s->avctx->sample_aspect_ratio.num = get_bits(gb, 8); // par_width
s->avctx->sample_aspect_ratio.den = get_bits(gb, 8); // par_height
} else {
s->avctx->sample_aspect_ratio = ff_h263_pixel_aspect[s->aspect_ratio_info];
s->avctx->sample_aspect_ratio = ff_h263_pixel_aspect[aspect_ratio_info];
}
skip_bits(gb, 4); /* frame_rate_code */
skip_bits(gb, 15); /* first_half_bit_rate */
@ -2301,7 +2301,7 @@ static int decode_studio_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
{
MpegEncContext *s = &ctx->m;
int width, height, vo_ver_id;
int width, height, vo_ver_id, aspect_ratio_info;
/* vol header */
skip_bits(gb, 1); /* random access */
@ -2329,12 +2329,12 @@ static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
} else {
vo_ver_id = 1;
}
s->aspect_ratio_info = get_bits(gb, 4);
if (s->aspect_ratio_info == FF_ASPECT_EXTENDED) {
aspect_ratio_info = get_bits(gb, 4);
if (aspect_ratio_info == FF_ASPECT_EXTENDED) {
s->avctx->sample_aspect_ratio.num = get_bits(gb, 8); // par_width
s->avctx->sample_aspect_ratio.den = get_bits(gb, 8); // par_height
} else {
s->avctx->sample_aspect_ratio = ff_h263_pixel_aspect[s->aspect_ratio_info];
s->avctx->sample_aspect_ratio = ff_h263_pixel_aspect[aspect_ratio_info];
}
if ((ctx->vol_control_parameters = get_bits1(gb))) { /* vol control parameter */