diff --git a/libavformat/avienc.c b/libavformat/avienc.c index 9cbf3d3349..ac11dd9cb2 100644 --- a/libavformat/avienc.c +++ b/libavformat/avienc.c @@ -66,6 +66,7 @@ typedef struct AVIIndex { typedef struct AVIContext { const AVClass *class; + AVPacket *empty_packet; int64_t riff_start, movi_list, odml_list; int64_t frames_hdr_all; int riff_id; @@ -274,6 +275,10 @@ static int avi_write_header(AVFormatContext *s) return AVERROR(EINVAL); } + avi->empty_packet = av_packet_alloc(); + if (!avi->empty_packet) + return AVERROR(ENOMEM); + for (n = 0; n < s->nb_streams; n++) { s->streams[n]->priv_data = av_mallocz(sizeof(AVIStream)); if (!s->streams[n]->priv_data) @@ -739,24 +744,21 @@ static int avi_write_idx1(AVFormatContext *s) static int write_skip_frames(AVFormatContext *s, int stream_index, int64_t dts) { + AVIContext *avi = s->priv_data; AVIStream *avist = s->streams[stream_index]->priv_data; AVCodecParameters *par = s->streams[stream_index]->codecpar; ff_dlog(s, "dts:%s packet_count:%d stream_index:%d\n", av_ts2str(dts), avist->packet_count, stream_index); while (par->block_align == 0 && dts != AV_NOPTS_VALUE && dts > avist->packet_count && par->codec_id != AV_CODEC_ID_XSUB && avist->packet_count) { - AVPacket empty_packet; if (dts - avist->packet_count > 60000) { av_log(s, AV_LOG_ERROR, "Too large number of skipped frames %"PRId64" > 60000\n", dts - avist->packet_count); return AVERROR(EINVAL); } - av_init_packet(&empty_packet); - empty_packet.size = 0; - empty_packet.data = NULL; - empty_packet.stream_index = stream_index; - avi_write_packet_internal(s, &empty_packet); + avi->empty_packet->stream_index = stream_index; + avi_write_packet_internal(s, avi->empty_packet); ff_dlog(s, "dup dts:%s packet_count:%d\n", av_ts2str(dts), avist->packet_count); } @@ -978,6 +980,10 @@ static int avi_write_trailer(AVFormatContext *s) static void avi_deinit(AVFormatContext *s) { + AVIContext *avi = s->priv_data; + + av_packet_free(&avi->empty_packet); + for (int i = 0; i < s->nb_streams; i++) { AVIStream *avist = s->streams[i]->priv_data; if (!avist)