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hevc requires an open codec to set stream parameters right. Fixes garbage video when h265 passthrough

This commit is contained in:
Isaac Connor 2021-05-31 16:00:11 -04:00
parent c686fa5949
commit cc3bce48b7
1 changed files with 18 additions and 1 deletions
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19
src/zm_videostore.cpp
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@ -172,6 +172,19 @@ bool VideoStore::open() {
Debug(2,"No timebase found in video in context, defaulting to Q");
video_out_ctx->time_base = AV_TIME_BASE_Q;
}
video_out_codec = avcodec_find_encoder(video_out_ctx->codec_id);
if (video_out_codec) {
AVDictionary *opts = nullptr;
av_dict_set(&opts, "crf", "23", 0);
if ((ret = avcodec_open2(video_out_ctx, video_out_codec, &opts)) < 0) {
Warning("Can't open video codec (%s) %s",
video_out_codec->name,
av_make_error_string(ret).c_str()
);
video_out_codec = nullptr;
}
av_dict_free(&opts);
}
} else if (monitor->GetOptVideoWriter() == Monitor::ENCODE) {
int wanted_codec = monitor->OutputCodec();
if (!wanted_codec) {
@ -285,7 +298,7 @@ bool VideoStore::open() {
} // end if hwdevice_type != NONE
#endif
AVDictionary *opts = 0;
AVDictionary *opts = nullptr;
std::string Options = monitor->GetEncoderOptions();
Debug(2, "Options? %s", Options.c_str());
ret = av_dict_parse_string(&opts, Options.c_str(), "=", ",#\n", 0);
@ -317,6 +330,7 @@ bool VideoStore::open() {
while ((e = av_dict_get(opts, "", e, AV_DICT_IGNORE_SUFFIX)) != nullptr) {
Warning("Encoder Option %s not recognized by ffmpeg codec", e->key);
}
av_dict_free(&opts);
if (video_out_codec) break;
#if LIBAVCODEC_VERSION_CHECK(57, 64, 0, 64, 0)
// We allocate and copy in newer ffmpeg, so need to free it
@ -351,6 +365,9 @@ bool VideoStore::open() {
#endif
video_out_stream->time_base = video_in_stream ? video_in_stream->time_base : AV_TIME_BASE_Q;
if (monitor->GetOptVideoWriter() == Monitor::PASSTHROUGH) {
if (video_in_stream) {
video_out_stream->avg_frame_rate = video_in_stream->avg_frame_rate;
}
// Only set orientation if doing passthrough, otherwise the frame image will be rotated
Monitor::Orientation orientation = monitor->getOrientation();
if (orientation) {