Thank you for looking.
Yes, I pretty much started there, and pretty much have it open all the time.
From what I can tell my code is doing the same thing:
av_encode_codec_ctx = avcodec_alloc_context3( av_encode_codec );
if ( !av_encode_codec_ctx ) { PRINT_AV_ERROR(
"ERROR:avcodec_alloc_context3:" ); return -1; }
av_encode_codec_ctx->bit_rate = 5e6;
av_encode_codec_ctx->width = 1024; /// \note multiple of 2
av_encode_codec_ctx->height = 768; /// \note multiple of 2
av_encode_codec_ctx->time_base = (AVRational) { 1, 60 }; //* 2;
av_encode_codec_ctx->gop_size = 15; // Intra frames per x P frames
av_encode_codec_ctx->pix_fmt = AV_PIX_FMT_YUV420P; // (MUST) DO NOT
CHANGE nvenc required
That code does not setup the output with
avio_open( &av_out_fmt_ctx->pb, f.c_str(), AVIO_FLAG_WRITE )
avformat_write_header( av_out_fmt_ctx, NULL )
The header is where I see my error, either the muxer is unhappy or the encoder
is unhappy
Output #0, mp4, to 'enc.mp4':
Stream #0:0: Unknown: none (h264_nvenc) ([33][0][0][0] / 0x0021)
av_dump_format enc.mp4
[mp4 @ 0x786d60] Using AVStream.codec to pass codec parameters to muxers is
deprecated, use AVStream.codecpar instead.
[mp4 @ 0x786d60] dimensions not set
ERROR:avformat_write_header::
Thanks
cco
On 08/23/2016 07:01 AM, salsaman wrote:
Charles,
perhaps the example here can help ?
https://ffmpeg.org/doxygen/3.1/decoding__encoding_8c_source.html#l00347
http://lives-video.com
https://www.openhub.net/accounts/salsaman
On Tue, Aug 23, 2016 at 8:39 AM, Charles <[email protected]
<mailto:[email protected]>> wrote:
On 08/23/2016 03:08 AM, Nicolas George wrote:
Le sextidi 6 fructidor, an CCXXIV, Charles a écrit :
6 - avcodec_parameters_to_context( av_encode_codec_ctx,
av_out_fmt_ctx->streams[ 0 ]->codecpar )
You are copying the parameters from a newly created blank stream to an
initialized encoder. That feels wrong.
Regards,
Thanks for the look, I did some rearranging and I am to the point where the
muxer is happy or the encoder is happy but cant get both at
the same time:
Currently Op order:
1) av_encode_codec = avcodec_find_encoder( AV_CODEC_ID_H264 )
2) avformat_alloc_output_context2( &av_out_fmt_ctx, NULL, NULL, f.c_str() )
3) video_st = avformat_new_stream( av_out_fmt_ctx, av_encode_codec )
video_st->id = 0;
video_st->time_base.den = 60; // * 2;
video_st->time_base.num = 1;
// This solved the time_base error
4) parameters = video_st->codecpar;
parameters->codec_tag = tag;
parameters->format = AV_PIX_FMT_YUV420P;
parameters->bit_rate = 5e6;
parameters->width = 1024;
parameters->height = 768;
parameters->bit_rate = 5e6;
av_dict_set( &av_dict_opts, "b", "2.5M", 0);
av_dict_set( &av_dict_opts, "preset", "losslesshp", 0 );
av_dict_set( &av_dict_opts, "profile", "high", 0 );
av_dict_set( &av_dict_opts, "rc", "vbr_minqp", 0 );
av_dict_set( &av_dict_opts, "gpu", "1", 0 );
5) av_encode_codec_ctx = avcodec_alloc_context3( av_encode_codec )
av_encode_codec_ctx->bit_rate = 5e6;
av_encode_codec_ctx->width = 1024; /// \note multiple of 2
av_encode_codec_ctx->height = 768; /// \note multiple of 2
av_encode_codec_ctx->time_base = (AVRational) { 1, 60 }; //* 2;
av_encode_codec_ctx->gop_size = 15; // Intra frames per x P
frames
av_encode_codec_ctx->pix_fmt = AV_PIX_FMT_YUV420P; // MUST DO NOT
CHANGE nvenc required
// This appears to make h264_nvenc happy
6) avcodec_parameters_to_context( av_encode_codec_ctx, parameters )
7) avcodec_open2( av_encode_codec_ctx, av_encode_codec, &av_dict_opts )
[mp4 @ 0xc2ed60] Using AVStream.codec to pass codec parameters to muxers is
deprecated, use AVStream.codecpar instead.
[mp4 @ 0xc2ed60] dimensions not set
AVStream does not have dimensions, and the error makes me think its in the
ctx but I am setting those dims.
Clearly I am not setting something, just haven't found it.
Thanks
cco
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