On Apr 11, 2012 10:37 PM, "Wagner Patriota" <[email protected]> wrote: > > YES, I got the same conclusion! but how do I convert the frames? > that's what I still don't understand. I was expecting the filter do it for me... any idea? :-( > > On Wed, Apr 11, 2012 at 4:19 PM, Alex Cohn <[email protected]> wrote: >> >> On Apr 11, 2012 9:37 PM, "Wagner Patriota" <[email protected]> wrote: >> > >> > ExtraData: 00000001674D400D96528322FF2FFE080007F0A100000303E90000BB80604000825C000412FFF18E302000412E0002097FF8C70ED09128B00000000168E9093520 >> > So what is wrong? >> > >> > 1. If I don't use the filter, I get this message: >> > "H.264 bitstream malformed, no startcode found, use the h264_mp4toannexb bitstream filter (-bsf h264_mp4toannexb)"" >> > Because "AV_RB32(pkt->data) != 0x0000001" (in fact, AV_RB32(pkt->data) = 0x1B13) >> >> Could it be that while your extradata is in annex b format, the frames still need conversion? 0x1B13 looks like a start of a regular packet.
You can try to convert extradata (SPS/PPS) to Nal format, attach it to the first frame (before the frame data), and pass the resulting stream through the annex b filter. Or you could prepend each frame with 0x00000001 without the filter. Note that you should not give SPS/PPS data to the decode function separately, but only with the IDR frame data. BR, Alex
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