Sergey, Just tried - setting decoderContext->flags2 to CODEC_FLAG2_CHUNKS also doesnt work (with or without parser!) Is there something special that needs to be done?
Decoder keeps saying: *Screenhero[45392:13803] Current profile doesn't provide more RBSP data in PPS, skipping* *2013-07-07 13:47:38.105 Screenhero[45392:13803] Frame size received is 8476 * *2013-07-07 13:47:38.107 Screenhero[45392:13803] out of range intra chroma pred mode at 67358720 -1583242847* *2013-07-07 13:47:38.107 Screenhero[45392:13803] error while decoding MB 67358720 -1583242847* *2013-07-07 13:47:38.108 Screenhero[45392:13803] out of range intra chroma pred mode at 67358720 -1583242847* *2013-07-07 13:47:38.108 Screenhero[45392:13803] error while decoding MB 67358720 -1583242847* *2013-07-07 13:47:38.119 Screenhero[45392:13803] Frame size received is 6464 * *2013-07-07 13:47:38.120 Screenhero[45392:13803] Frame size received is 1287 * *2013-07-07 13:47:38.126 Screenhero[45392:13803] Frame size received is 9938 * *2013-07-07 13:47:38.127 Screenhero[45392:13803] cbp too large (67358720) at -1583242847 67358792* *2013-07-07 13:47:38.127 Screenhero[45392:13803] error while decoding MB 67358720 -1583242847* *2013-07-07 13:47:38.127 Screenhero[45392:13803] negative number of zero coeffs at 67358720 -1583242847* *2013-07-07 13:47:38.128 Screenhero[45392:13803] error while decoding MB 67358720 -1583242847* *2013-07-07 13:47:38.134 Screenhero[45392:13803] Frame size received is 2574 * * * *Thanks!* * * On Sun, Jul 7, 2013 at 1:15 PM, Faraz Khan <[email protected]> wrote: > Sergey, > I did not - is that supposed to do the trick? Would we need a parser in > that scenario? > > > > On Sun, Jul 7, 2013 at 12:13 AM, Sergey Fedorov < > [email protected]> wrote: > >> Did you try using CODEC_FLAG2_CHUNKS? >> >> >> 2013/7/6 Attila Sukosd <[email protected]> >> >>> Hi guys, >>> >>> There was this thread about decoding NALUs one-by-one with >>> parser2/decode2 and I'm having exactly the same issue. >>> >>> I have x264 creating a bunch of NALUs, in annex_b and repeate_headers, >>> and trying to decode them one by one on the client side. When I concatenate >>> all the NALUs per frame into one large packet, and feed that directly into >>> avcodec_decode_video2, everything is fine, the decode is successful. >>> However, when I try to feed single NALs directly to >>> avcodec_decode_video2, it spits out a bunch of errors. After searching for >>> a while on the net, I read some place that certain types of NALs affect the >>> rest of the data stream, and they need to be group together. >>> I've tried to run the NALs through av_parser_parse2 and tried to decode >>> the output buffer when the output size was larger than zero, however, after >>> looking at the output buffer contents, it seems like while the output size >>> seems reasonable (around the size of the NALs or a combination of a number >>> of previous NALs), the output buffer content contains 3-4 bytes, and the >>> rest is zero. >>> >>> The decoding looks like this: >>> >>> ret = av_parser_parse2(decoder->pParserCtx, decoder->pCodecCtx, >>> decoder->tmp_data, &outsize, buff, size, 0, 0, AV_NOPTS_VALUE); >>> printf("%p buff, %p outdata, consumed %d, %d bufsize, %d outsize\n", >>> buff, decoder->tmp_data,ret, size, outsize); >>> disp_buff(decoder->tmp_data, 50); >>> >>> if (outsize <= 0) return 0; >>> >>> decoder->avpkt.flags = AV_PKT_FLAG_KEY; >>> decoder->avpkt.data = decoder->tmp_data; >>> decoder->avpkt.size = outsize; >>> >>> got_picture = 0; >>> if ((ret = avcodec_decode_video2(decoder->pCodecCtx, decoder->pFrame, >>> &got_picture, &decoder->avpkt)) < 0) { >>> LOGE(__FUNCTION__, "H264 decoding failed!\n"); >>> return -1; >>> } >>> >>> >>> Could someone shed some light on if I'm really off the right track? or >>> am I just missing something very trivial? >>> >>> >>> Best Regards, >>> >>> Attila >>> >>> _______________________________________________ >>> Libav-user mailing list >>> [email protected] >>> http://ffmpeg.org/mailman/listinfo/libav-user >>> >>> >> >> _______________________________________________ >> Libav-user mailing list >> [email protected] >> http://ffmpeg.org/mailman/listinfo/libav-user >> >> > > > -- > > -- > Faraz Khan > Simple Collaboration Screensharing > www.screenhero.com > -- -- Faraz Khan Simple Collaboration Screensharing www.screenhero.com
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