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avformat/iamf_writer: Avoid using dynamic buffer

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Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2024-01-31 09:15:57 +01:00
parent aa3cfd4b5a
commit b9596daafb
1 changed files with 6 additions and 22 deletions
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28
libavformat/iamf_writer.c
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@ -807,31 +807,15 @@ static int iamf_write_mixing_presentation(const IAMFContext *iamf,
int ff_iamf_write_descriptors(const IAMFContext *iamf, AVIOContext *pb, void *log_ctx)
{
uint8_t header[MAX_IAMF_OBU_HEADER_SIZE];
PutBitContext pbc;
AVIOContext *dyn_bc;
uint8_t *dyn_buf = NULL;
int dyn_size;
int ret = avio_open_dyn_buf(&dyn_bc);
if (ret < 0)
return ret;
int ret;
// Sequence Header
init_put_bits(&pbc, header, sizeof(header));
put_bits(&pbc, 5, IAMF_OBU_IA_SEQUENCE_HEADER);
put_bits(&pbc, 3, 0);
flush_put_bits(&pbc);
avio_w8(pb, IAMF_OBU_IA_SEQUENCE_HEADER << 3);
avio_write(dyn_bc, header, put_bytes_count(&pbc, 1));
ffio_write_leb(dyn_bc, 6);
avio_wb32(dyn_bc, MKBETAG('i','a','m','f'));
avio_w8(dyn_bc, iamf->nb_audio_elements > 1); // primary_profile
avio_w8(dyn_bc, iamf->nb_audio_elements > 1); // additional_profile
dyn_size = avio_close_dyn_buf(dyn_bc, &dyn_buf);
avio_write(pb, dyn_buf, dyn_size);
av_free(dyn_buf);
ffio_write_leb(pb, 6);
avio_wb32(pb, MKBETAG('i','a','m','f'));
avio_w8(pb, iamf->nb_audio_elements > 1); // primary_profile
avio_w8(pb, iamf->nb_audio_elements > 1); // additional_profile
for (int i = 0; i < iamf->nb_codec_configs; i++) {
ret = iamf_write_codec_config(iamf, iamf->codec_configs[i], pb);