2018-10-12 15:41 GMT+02:00, Jun Zhao <mypopy...@gmail.com>: > case 1: > use the hexdump -C SMM0005.rcv get: > size skip (size - 4) > | | > V V > 00000000 18 00 00 c5 05 00 00 00 4d f1 0a 11 00 e0 01 00 > 00000010 00 d0 02 00 00 0c 00 00 00 88 13 00 00 c0 65 52 > ^ > | > size + 16 > case 2: > same the command for SMM0015.rcv get: > size > | > V > 00000000 19 00 00 c5 04 00 00 00 41 f3 80 01 40 02 00 00 > 00000010 d0 02 00 00 0c 00 00 00 00 00 00 10 00 00 00 00 > ^ > | > size + 16 > > There are different the RCV file format for VC-1, vc1test > just handle the case 2 now, this fix will support the case 1.
Both with and without your patch, I get identical output from FFmpeg's decoder for both SSM0015.rcv and SMM0005.rcv. What exactly is your patch supposed to change? $ md5sum SMM0005.rcv abd0fa5ec90d44f7b4865c6930d65ff2 SMM0005.rcv $ md5sum SSM0015.rcv 21a0281f83b7f2e99a048b180dd3347f SSM0015.rcv The following does not change: $ ffmpeg -i SMM0005.rcv -f crc - ffmpeg version N-92147-gf85fa10 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 6.4.0 (GCC) configuration: --enable-gpl --enable-gnutls --enable-libxml2 libavutil 56. 19.101 / 56. 19.101 libavcodec 58. 32.100 / 58. 32.100 libavformat 58. 18.104 / 58. 18.104 libavdevice 58. 4.105 / 58. 4.105 libavfilter 7. 33.100 / 7. 33.100 libswscale 5. 2.100 / 5. 2.100 libswresample 3. 2.100 / 3. 2.100 libpostproc 55. 2.100 / 55. 2.100 Input #0, vc1test, from 'SMM0005.rcv': Duration: 00:00:01.00, bitrate: 7472 kb/s Stream #0:0: Video: wmv3 (Main), yuv420p, 720x480, 24 fps, 24 tbr, 24 tbn, 24 tbc Stream mapping: Stream #0:0 -> #0:0 (wmv3 (native) -> rawvideo (native)) Press [q] to stop, [?] for help Output #0, crc, to 'pipe:': Metadata: encoder : Lavf58.18.104 Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480, q=2-31, 99532 kb/s, 24 fps, 24 tbn, 24 tbc Metadata: encoder : Lavc58.32.100 rawvideo SMM0005.rcv: Input/output error Last message repeated 1 times CRC=0xe3b2671c frame= 24 fps=0.0 q=-0.0 Lsize= 0kB time=00:00:01.00 bitrate= 0.1kbits/s speed=14.8x video:12150kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown What exactly is your patch supposed to improve? Thank you, Carl Eugen (05 looks different here.) _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel