On 10/27/2016 4:19 PM, Andreas Cadhalpun wrote:
> This fixes creating apng files.
>
> This partly reverts commit 5ef19590802f000299e418143fc2301e3f43affe.
>
> Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
> ---
> ffmpeg.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/ffmpeg.c b/ffmpeg.c
> index 3b91710..9971148 100644
> --- a/ffmpeg.c
> +++ b/ffmpeg.c
> @@ -646,6 +646,7 @@ static void write_packet(OutputFile *of, AVPacket *pkt,
> OutputStream *ost)
> {
> AVFormatContext *s = of->ctx;
> AVStream *st = ost->st;
> + AVCodecContext *avctx = ost->encoding_needed ? ost->enc_ctx :
> ost->st->codec;
No, AVStream->codec usage was removed. It can't be re added.
> int ret;
>
> if (!of->header_written) {
> @@ -709,6 +710,16 @@ static void write_packet(OutputFile *of, AVPacket *pkt,
> OutputStream *ost)
> }
> }
>
> + if (!st->codecpar->extradata_size && avctx->extradata_size) {
> + st->codecpar->extradata = av_mallocz(avctx->extradata_size +
> AV_INPUT_BUFFER_PADDING_SIZE);
> + if (!st->codecpar->extradata) {
> + av_log(NULL, AV_LOG_ERROR, "Could not allocate extradata buffer
> to copy parser data.\n");
> + exit_program(1);
> + }
> + st->codecpar->extradata_size = avctx->extradata_size;
> + memcpy(st->codecpar->extradata, avctx->extradata,
> avctx->extradata_size);
> + }
If apng encoder needs to add new extradata in a packet, it should do it
with av_packet_new_side_data() instead.
> +
> if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
> if (pkt->dts != AV_NOPTS_VALUE &&
> pkt->pts != AV_NOPTS_VALUE &&
>
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