mirror of https://github.com/mpv-player/mpv
add support for aac in real media files
patch by Moritz Bunkus <moritz@bunkus.org> git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11878 b3059339-0415-0410-9bf9-f77b7e298cf2
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@ -581,6 +581,26 @@ got_audio:
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static int cnt=0;
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static int cnt2=CRACK_MATRIX;
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#endif
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if (((sh_audio_t *)ds->sh)->format == mmioFOURCC('M', 'P', '4', 'A')) {
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uint16_t *sub_packet_lengths, sub_packets, i;
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/* AAC in Real: several AAC frames in one Real packet. */
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/* Second byte, upper four bits: number of AAC frames */
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/* next n * 2 bytes: length of the AAC frames in bytes, BE */
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sub_packets = (stream_read_word(demuxer->stream) & 0xf0) >> 4;
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sub_packet_lengths = calloc(sub_packets, sizeof(uint16_t));
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for (i = 0; i < sub_packets; i++)
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sub_packet_lengths[i] = stream_read_word(demuxer->stream);
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for (i = 0; i < sub_packets; i++) {
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demux_packet_t *dp = new_demux_packet(sub_packet_lengths[i]);
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stream_read(demuxer->stream, dp->buffer, sub_packet_lengths[i]);
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dp->pts = (priv->a_pts == timestamp) ? 0 : (timestamp / 1000.0f);
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priv->a_pts = timestamp;
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dp->pos = demuxer->filepos;
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ds_add_packet(ds, dp);
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}
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free(sub_packet_lengths);
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return 1;
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}
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demux_packet_t *dp = new_demux_packet(len);
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stream_read(demuxer->stream, dp->buffer, len);
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#ifdef CRACK_MATRIX
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@ -1193,6 +1213,23 @@ void demux_open_real(demuxer_t* demuxer)
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// stream_read(demuxer->stream, ((char*)(sh->wf+1))+6, 24); // extras
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stream_read(demuxer->stream, ((char*)(sh->wf+1))+10, codecdata_length); // extras
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break;
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case MKTAG('r', 'a', 'a', 'c'):
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case MKTAG('r', 'a', 'c', 'p'):
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/* This is just AAC. The two or five bytes of */
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/* config data needed for libfaad are stored */
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/* after the audio headers. */
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stream_skip(demuxer->stream,3); // Skip 3 unknown bytes
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if (version==5)
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stream_skip(demuxer->stream,1); // Skip 1 additional unknown byte
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codecdata_length=stream_read_dword(demuxer->stream);
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if (codecdata_length>=1) {
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sh->codecdata_len = codecdata_length - 1;
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sh->codecdata = calloc(sh->codecdata_len, 1);
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stream_skip(demuxer->stream, 1);
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stream_read(demuxer->stream, sh->codecdata, sh->codecdata_len);
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}
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sh->format = mmioFOURCC('M', 'P', '4', 'A');
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break;
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default:
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mp_msg(MSGT_DEMUX,MSGL_V,"Audio: Unknown (%s)\n", buf);
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}
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