dilim/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2026-08-09 01:21:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

avformat/iamf_parse: check that num_sub_mixes and num_audio_elements in Mix Presentations are not zero

Browse Source 
As required by the spec in Section 3.7

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 1b946a3abd)
This commit is contained in:
James Almer
2026-07-25 12:20:22 -03:00
parent 5eac4c5e3e
commit 95fe88589a
1 changed files with 13 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
libavformat/iamf_parse.c
View File

@@ -1042,6 +1042,12 @@ static int mix_presentation_obu(void *s, IAMFContext *c, AVIOContext *pb, int le
}
nb_submixes = ffio_read_leb(pbc);
if (!nb_submixes) {
av_log(s, AV_LOG_ERROR, "Mix presentation %u has no submixes\n", mix_presentation_id);
ret = AVERROR_INVALIDDATA;
goto fail;
}
for (int i = 0; i < nb_submixes; i++) {
AVIAMFSubmix *sub_mix;
unsigned nb_elements, nb_layouts;
@@ -1053,6 +1059,13 @@ static int mix_presentation_obu(void *s, IAMFContext *c, AVIOContext *pb, int le
}
nb_elements = ffio_read_leb(pbc);
if (!nb_elements) {
av_log(s, AV_LOG_ERROR, "Submix %d from Mix presentation %u has no audio elements\n",
i, mix_presentation_id);
ret = AVERROR_INVALIDDATA;
goto fail;
}
for (int j = 0; j < nb_elements; j++) {
AVIAMFSubmixElement *submix_element;
IAMFAudioElement *audio_element = NULL;