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play around with presets

This commit is contained in:
APHW2 MFGENG 2017-11-14 12:41:25 -08:00
parent b839151cbc
commit 9563c534a9
1 changed files with 33 additions and 5 deletions
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38
src/zm_videostore.cpp
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@ -176,11 +176,13 @@ VideoStore::VideoStore(
/* video time_base can be set to whatever is handy and supported by encoder */
video_out_ctx->time_base = (AVRational){1, 1000000}; // microseconds as base frame rate
video_out_ctx->framerate = (AVRational){0,1}; // Unknown framerate
#if 1
video_out_ctx->gop_size = 12;
video_out_ctx->bit_rate = 4000000;
video_out_ctx->qmin = 10;
video_out_ctx->qmax = 51;
video_out_ctx->qcompress = 0.6;
video_out_ctx->bit_rate = 4000000;
#endif
AVDictionary *opts = 0;
std::string Options = monitor->GetEncoderOptions();
@ -194,14 +196,22 @@ VideoStore::VideoStore(
}
}
#if 0
if ( ! av_dict_get( opts, "preset", NULL, 0 ) ) {
Debug(2,"Setting preset to ultrafast");
av_dict_set( &opts, "preset", "ultrafast", 0 );
Debug(2,"Setting preset to superfast");
av_dict_set( &opts, "preset", "superfast", 0 );
}
if ( ! av_dict_get( opts, "crf", NULL, 0 ) ) {
Debug(2,"Setting crf to superfast");
av_dict_set( &opts, "crf", "0", 0 );
}
#endif
#if 1
if ( ! av_dict_get( opts, "tune", NULL, 0 ) ) {
Debug(2,"Setting tune to lowlatency");
av_dict_set( &opts, "tune", "lowlatency", 0 );
Debug(2,"Setting tune to zerolatency");
av_dict_set( &opts, "tune", "zerolatency", 0 );
}
#endif
if ( (ret = avcodec_open2(video_out_ctx, video_out_codec, &opts)) < 0 ) {
Warning("Can't open video codec (%s)! %s, trying h264",
@ -217,6 +227,21 @@ VideoStore::VideoStore(
return;
}
}
#if 0
if ( ! av_dict_get( opts, "preset", NULL, 0 ) ) {
Debug(2,"Setting preset to superfast");
av_dict_set( &opts, "preset", "ultrafast", 0 );
}
if ( ! av_dict_get( opts, "crf", NULL, 0 ) ) {
Debug(2,"Setting crf to 0");
av_dict_set( &opts, "crf", "0", 0 );
}
#else
if ( ! av_dict_get( opts, "tune", NULL, 0 ) ) {
Debug(2,"Setting tune to zerolatency");
av_dict_set( &opts, "tune", "zerolatency", 0 );
}
#endif
if ( (ret = avcodec_open2(video_out_ctx, video_out_codec, &opts)) < 0 ) {
Error("Can't open video codec (%s)! %s",
video_out_codec->name,
@ -270,8 +295,10 @@ Debug(2, "%dx%d", video_out_stream->codec->width, video_out_stream->codec->heigh
zm_dump_codec(video_out_ctx);
zm_dump_codec(video_out_stream->codec);
#endif
#if 0
video_out_stream->time_base.num = video_out_ctx->time_base.num;
video_out_stream->time_base.den = video_out_ctx->time_base.den;
#endif
Debug(3,
"Time bases: VIDEO out stream: (%d/%d) out codec (%d/%d)",
@ -987,6 +1014,7 @@ void VideoStore::write_video_packet( AVPacket &opkt ) {
//AVPacket safepkt;
//memcpy(&safepkt, &opkt, sizeof(AVPacket));
av_packet_rescale_ts( &opkt, video_out_ctx->time_base, video_out_stream->time_base );
Debug(1,
"writing video packet pts(%d) dts(%d) duration(%d) packet_count(%d)",