static int extract_extradata_filter(AVBSFContext *ctx, AVPacket *out)
{
ExtractExtradataContext *s = ctx->priv_data;
AVPacket *in;
uint8_t *extradata = NULL;
int extradata_size;
int ret = 0;
ret = ff_bsf_get_packet(ctx, &in);
if (ret < 0)
return ret;
ret = s->extract(ctx, in, &extradata, &extradata_size);
if (ret < 0)
goto fail;
if (extradata) {
ret = av_packet_add_side_data(in, AV_PKT_DATA_NEW_EXTRADATA,
extradata, extradata_size);
if (ret < 0) {
av_freep(&extradata);
goto fail;
}
}
av_packet_move_ref(out, in);
fail:
av_packet_free(&in);
return ret;
}
static int extract_extradata_filter(AVBSFContext *ctx, AVPacket *pkt)
{
ExtractExtradataContext *s = ctx->priv_data;
uint8_t *extradata = NULL;
int extradata_size;
int ret = 0;
ret = ff_bsf_get_packet_ref(ctx, pkt);
if (ret < 0)
return ret;
ret = s->extract(ctx, pkt, &extradata, &extradata_size);
if (ret < 0)
goto fail;
if (extradata) {
ret = av_packet_add_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
extradata, extradata_size);
if (ret < 0) {
av_freep(&extradata);
goto fail;
}
}
return 0;
fail:
av_packet_unref(pkt);
return ret;
}
uint8_t *av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
int size)
{
int ret;
uint8_t *data;
if ((unsigned)size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
return NULL;
data = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!data)
return NULL;
ret = av_packet_add_side_data(pkt, type, data, size);
if (ret < 0) {
av_freep(&data);
return NULL;
}
return data;
}