On 08/22/2016 06:32 PM, Charles wrote:
I seem to be lost in where the values get copied. Want to create a new h.264 file without an input stream to copy fromSteps 1 - av_encode_codec = avcodec_find_encoder( codec_id ) 2 - av_encode_codec_ctx = avcodec_alloc_context3( av_encode_codec ) av_encode_codec_ctx->width = w_; /// \note multiple of 2 av_encode_codec_ctx->height = h_; /// \note multiple of 2 3 - avcodec_open2( av_encode_codec_ctx, av_encode_codec, &av_dict_opts ) 4 - avformat_alloc_output_context2( &av_out_fmt_ctx, NULL, (char*)"mp4", fname ) 5 - video_st = avformat_new_stream( av_out_fmt_ctx, av_encode_codec ) av_out_fmt_ctx->streams[ 0 ]->codecpar->width = w_; av_out_fmt_ctx->streams[ 0 ]->codecpar->height = h_; 6 - avcodec_parameters_to_context( av_encode_codec_ctx, av_out_fmt_ctx->streams[ 0 ]->codecpar ) 7 - avio_open( &av_out_fmt_ctx->pb, fname, AVIO_FLAG_WRITE ) 8 - avformat_write_header( av_out_fmt_ctx, NULL ) [mp4 @ 0x29b4060] dimensions not set transcoding.c is using enc_ctx = out_stream->codec; Which should be the same as av_encode_codec_ctx What am I missing here? Thanks cco _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
Posted the code at : https://gist.github.com/LinuxwitChdoCtOr/74c1721dd7688cf1d16509ea2a52d231 Current output: Output #0, mp4, to 'enc.mp4': Stream #0:0: Unknown: none (h264_nvenc) ([33][0][0][0] / 0x0021) [mp4 @ 0x1a08a60] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead. [mp4 @ 0x1a08a60] dimensions not set _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
