Hi, On 6/16/2009 8:36 AM, Matthew Hallin wrote: > I am new to ffmpeg and am trying to encode to MPEG2 D10 > I am using revision 19203. > I found the following on the web, and if I run it it creates the output file > no problem. > > ffmpeg -i t:\temp\pal-YUY2.mov -vcodec mpeg2video -r 25 -pix_fmt yuv422p > -minrate 50000k -maxrate 50000k -b 50000k -intra -flags +ildct+low_delay -dc > 10 -flags2 +ivlc+non_linear_q -ps 1 -qmin 1 -qmax 3 -top 1 -bufsize 2000000 > -rc_init_occupancy 2000000 -rc_buf_aggressivity 0.25 -loglevel 48 -an > t:\temp\output.m2v > > Trouble is when I do what I think is the same thing from my code it crashes > when I call avcodec_encode_video > My AVCodecContext parameters are below: > > pContext->bit_rate = 50000000; > pContext->time_base.num = 1; > pContext->time_base.den = 25; > pContext->width = 720; > pContext->height = 576; > pContext->gop_size = 0; > pContext->pix_fmt = PIX_FMT_YUV422P; > pContext->flags = CODEC_FLAG_LOW_DELAY | CODEC_FLAG_INTERLACED_DCT; > pContext->flags2 = CODEC_FLAG2_INTRA_VLC | CODEC_FLAG2_NON_LINEAR_QUANT; > pContext->qmax = 3; > pContext->qmin = 1; > pContext->rtp_payload_size = 1; > pContext->rc_max_rate = pContext->bit_rate; > pContext->rc_min_rate = pContext->bit_rate; > pContext->intra_dc_precision = 10; > pContext->rc_buffer_size = 2000000; > pContext->rc_initial_buffer_occupancy = pContext->rc_buffer_size; > > I have set the log level to AV_LOG_DEBUG and see no errors in my calls to > the previous av functions > Any idea what I am doing wrong?
Not really, did you call avcodec_get_context_defaults2 ? Otherwise if you can supply gdb output it would be easier to find out where the crash happens, if it happens in libavcodec. -- Baptiste COUDURIER GnuPG Key Id: 0x5C1ABAAA Key fingerprint 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA FFmpeg maintainer http://www.ffmpeg.org _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
