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; }