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756 lines
24 KiB
756 lines
24 KiB
/* |
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* AVI encoder. |
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* Copyright (c) 2000 Fabrice Bellard. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include "avformat.h" |
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#include "avi.h" |
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|
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/* |
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* TODO: |
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* - fill all fields if non streamed (nb_frames for example) |
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*/ |
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|
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#ifdef CONFIG_ENCODERS |
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typedef struct AVIIentry { |
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unsigned int flags, pos, len; |
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} AVIIentry; |
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#define AVI_INDEX_CLUSTER_SIZE 16384 |
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typedef struct AVIIndex { |
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offset_t indx_start; |
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int entry; |
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int ents_allocated; |
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AVIIentry** cluster; |
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} AVIIndex; |
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typedef struct { |
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offset_t riff_start, movi_list, odml_list; |
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offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS]; |
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int audio_strm_length[MAX_STREAMS]; |
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int riff_id; |
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int packet_count[MAX_STREAMS]; |
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AVIIndex indexes[MAX_STREAMS]; |
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} AVIContext; |
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|
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static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id) |
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{ |
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int cl = ent_id / AVI_INDEX_CLUSTER_SIZE; |
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int id = ent_id % AVI_INDEX_CLUSTER_SIZE; |
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return &idx->cluster[cl][id]; |
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} |
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|
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offset_t start_tag(ByteIOContext *pb, const char *tag) |
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{ |
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put_tag(pb, tag); |
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put_le32(pb, 0); |
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return url_ftell(pb); |
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} |
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void end_tag(ByteIOContext *pb, offset_t start) |
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{ |
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offset_t pos; |
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pos = url_ftell(pb); |
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url_fseek(pb, start - 4, SEEK_SET); |
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put_le32(pb, (uint32_t)(pos - start)); |
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url_fseek(pb, pos, SEEK_SET); |
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} |
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#endif //CONFIG_ENCODERS |
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|
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/* Note: when encoding, the first matching tag is used, so order is |
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important if multiple tags possible for a given codec. */ |
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const CodecTag codec_bmp_tags[] = { |
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{ CODEC_ID_H264, MKTAG('H', '2', '6', '4') }, |
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|
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{ CODEC_ID_H263, MKTAG('H', '2', '6', '3') }, |
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{ CODEC_ID_H263P, MKTAG('H', '2', '6', '3') }, |
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{ CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */ |
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{ CODEC_ID_H261, MKTAG('H', '2', '6', '1') }, |
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|
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/* added based on MPlayer */ |
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{ CODEC_ID_H263P, MKTAG('U', '2', '6', '3') }, |
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{ CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') }, |
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{ CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4')}, |
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{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 }, |
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{ CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 }, |
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{ CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 }, |
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{ CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') }, |
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{ CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') }, |
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{ CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */ |
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|
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/* added based on MPlayer */ |
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{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') }, |
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{ CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') }, |
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{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, |
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{ CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') }, |
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{ CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */ |
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{ CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, |
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|
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/* added based on MPlayer */ |
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{ CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') }, |
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{ CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') }, |
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|
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/* added based on MPlayer */ |
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{ CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') }, |
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{ CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') }, |
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{ CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') }, |
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|
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/* added based on MPlayer */ |
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{ CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') }, |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') }, |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') }, |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') }, |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') }, |
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{ CODEC_ID_MPEG1VIDEO, 0x10000001 }, |
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{ CODEC_ID_MPEG2VIDEO, 0x10000002 }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') }, |
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{ CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') }, |
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{ CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') }, |
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{ CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') }, |
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{ CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */ |
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{ CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') }, |
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{ CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') }, |
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{ CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') }, |
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{ CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') }, |
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{ CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') }, |
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{ CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, |
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{ CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') }, |
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{ CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') }, |
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{ CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') }, |
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{ CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') }, |
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{ CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') }, |
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{ CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') }, |
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{ CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') }, |
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{ CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, |
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{ CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') }, |
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{ CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') }, |
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{ CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') }, |
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{ CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') }, |
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{ CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') }, |
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{ CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') }, |
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{ CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, |
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{ CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') }, |
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{ CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') }, |
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{ CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') }, |
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{ CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') }, |
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{ CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') }, |
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{ CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') }, |
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{ CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') }, |
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{ CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') }, |
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{ CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') }, |
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{ CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') }, |
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{ CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') }, |
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{ CODEC_ID_RAWVIDEO, 0 }, |
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{ 0, 0 }, |
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}; |
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unsigned int codec_get_tag(const CodecTag *tags, int id) |
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{ |
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while (tags->id != 0) { |
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if (tags->id == id) |
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return tags->tag; |
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tags++; |
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} |
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return 0; |
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} |
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static unsigned int codec_get_asf_tag(const CodecTag *tags, unsigned int id) |
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{ |
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while (tags->id != 0) { |
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if (!tags->invalid_asf && tags->id == id) |
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return tags->tag; |
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tags++; |
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} |
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return 0; |
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} |
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enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag) |
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{ |
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while (tags->id != 0) { |
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if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF) |
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&& toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF) |
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&& toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF) |
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&& toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF)) |
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return tags->id; |
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tags++; |
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} |
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return CODEC_ID_NONE; |
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} |
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unsigned int codec_get_bmp_tag(int id) |
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{ |
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return codec_get_tag(codec_bmp_tags, id); |
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} |
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unsigned int codec_get_wav_tag(int id) |
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{ |
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return codec_get_tag(codec_wav_tags, id); |
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} |
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enum CodecID codec_get_bmp_id(unsigned int tag) |
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{ |
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return codec_get_id(codec_bmp_tags, tag); |
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} |
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enum CodecID codec_get_wav_id(unsigned int tag) |
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{ |
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return codec_get_id(codec_wav_tags, tag); |
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} |
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#ifdef CONFIG_ENCODERS |
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/* BITMAPINFOHEADER header */ |
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void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf) |
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{ |
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put_le32(pb, 40 + enc->extradata_size); /* size */ |
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put_le32(pb, enc->width); |
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put_le32(pb, enc->height); |
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put_le16(pb, 1); /* planes */ |
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put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */ |
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/* compression type */ |
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put_le32(pb, for_asf ? (enc->codec_tag ? enc->codec_tag : codec_get_asf_tag(tags, enc->codec_id)) : enc->codec_tag); // |
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put_le32(pb, enc->width * enc->height * 3); |
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put_le32(pb, 0); |
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put_le32(pb, 0); |
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put_le32(pb, 0); |
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put_le32(pb, 0); |
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put_buffer(pb, enc->extradata, enc->extradata_size); |
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if (enc->extradata_size & 1) |
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put_byte(pb, 0); |
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} |
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static void parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale) |
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{ |
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int gcd; |
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*au_ssize= stream->block_align; |
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if(stream->frame_size && stream->sample_rate){ |
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*au_scale=stream->frame_size; |
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*au_rate= stream->sample_rate; |
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}else if(stream->codec_type == CODEC_TYPE_VIDEO){ |
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*au_scale= stream->frame_rate_base; |
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*au_rate = stream->frame_rate; |
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}else{ |
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*au_scale= stream->block_align ? stream->block_align*8 : 8; |
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*au_rate = stream->bit_rate; |
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} |
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gcd= ff_gcd(*au_scale, *au_rate); |
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*au_scale /= gcd; |
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*au_rate /= gcd; |
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} |
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static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb, |
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const char* riff_tag, const char* list_tag) |
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{ |
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offset_t loff; |
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int i; |
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avi->riff_id++; |
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for (i=0; i<MAX_STREAMS; i++) |
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avi->indexes[i].entry = 0; |
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avi->riff_start = start_tag(pb, "RIFF"); |
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put_tag(pb, riff_tag); |
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loff = start_tag(pb, "LIST"); |
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put_tag(pb, list_tag); |
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return loff; |
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} |
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static unsigned char* avi_stream2fourcc(unsigned char* tag, int index, |
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enum CodecType type) |
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{ |
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tag[0] = '0'; |
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tag[1] = '0' + index; |
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if (type == CODEC_TYPE_VIDEO) { |
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tag[2] = 'd'; |
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tag[3] = 'c'; |
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} else { |
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tag[2] = 'w'; |
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tag[3] = 'b'; |
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} |
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tag[4] = '\0'; |
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return tag; |
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} |
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static int avi_write_header(AVFormatContext *s) |
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{ |
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AVIContext *avi = s->priv_data; |
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ByteIOContext *pb = &s->pb; |
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int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale; |
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AVCodecContext *stream, *video_enc; |
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offset_t list1, list2, strh, strf; |
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/* header list */ |
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avi->riff_id = 0; |
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list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl"); |
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|
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/* avi header */ |
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put_tag(pb, "avih"); |
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put_le32(pb, 14 * 4); |
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bitrate = 0; |
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video_enc = NULL; |
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for(n=0;n<s->nb_streams;n++) { |
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stream = &s->streams[n]->codec; |
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bitrate += stream->bit_rate; |
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if (stream->codec_type == CODEC_TYPE_VIDEO) |
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video_enc = stream; |
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} |
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nb_frames = 0; |
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if(video_enc){ |
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put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate)); |
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} else { |
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put_le32(pb, 0); |
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} |
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put_le32(pb, bitrate / 8); /* XXX: not quite exact */ |
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put_le32(pb, 0); /* padding */ |
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put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */ |
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avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */ |
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put_le32(pb, nb_frames); /* nb frames, filled later */ |
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put_le32(pb, 0); /* initial frame */ |
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put_le32(pb, s->nb_streams); /* nb streams */ |
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put_le32(pb, 1024 * 1024); /* suggested buffer size */ |
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if(video_enc){ |
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put_le32(pb, video_enc->width); |
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put_le32(pb, video_enc->height); |
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} else { |
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put_le32(pb, 0); |
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put_le32(pb, 0); |
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} |
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put_le32(pb, 0); /* reserved */ |
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put_le32(pb, 0); /* reserved */ |
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put_le32(pb, 0); /* reserved */ |
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put_le32(pb, 0); /* reserved */ |
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|
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/* stream list */ |
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for(i=0;i<n;i++) { |
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list2 = start_tag(pb, "LIST"); |
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put_tag(pb, "strl"); |
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|
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stream = &s->streams[i]->codec; |
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|
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/* FourCC should really be set by the codec itself */ |
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if (! stream->codec_tag) { |
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stream->codec_tag = codec_get_bmp_tag(stream->codec_id); |
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} |
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/* stream generic header */ |
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strh = start_tag(pb, "strh"); |
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switch(stream->codec_type) { |
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case CODEC_TYPE_VIDEO: |
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put_tag(pb, "vids"); |
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put_le32(pb, stream->codec_tag); |
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put_le32(pb, 0); /* flags */ |
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put_le16(pb, 0); /* priority */ |
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put_le16(pb, 0); /* language */ |
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put_le32(pb, 0); /* initial frame */ |
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|
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put_le32(pb, stream->frame_rate_base); /* scale */ |
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put_le32(pb, stream->frame_rate); /* rate */ |
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av_set_pts_info(s->streams[i], 64, stream->frame_rate_base, stream->frame_rate); |
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|
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put_le32(pb, 0); /* start */ |
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avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */ |
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put_le32(pb, nb_frames); /* length, XXX: fill later */ |
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put_le32(pb, 1024 * 1024); /* suggested buffer size */ |
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put_le32(pb, -1); /* quality */ |
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put_le32(pb, 0); /* sample size */ |
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put_le16(pb, 0); |
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put_le16(pb, 0); |
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put_le16(pb, stream->width); |
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put_le16(pb, stream->height); |
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break; |
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case CODEC_TYPE_AUDIO: |
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put_tag(pb, "auds"); |
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put_le32(pb, 1); /* tag */ |
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put_le32(pb, 0); /* flags */ |
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put_le16(pb, 0); /* priority */ |
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put_le16(pb, 0); /* language */ |
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put_le32(pb, 0); /* initial frame */ |
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parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale); |
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put_le32(pb, au_scale); /* scale */ |
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put_le32(pb, au_byterate); /* rate */ |
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av_set_pts_info(s->streams[i], 64, au_scale, au_byterate); |
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put_le32(pb, 0); /* start */ |
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avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */ |
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put_le32(pb, 0); /* length, XXX: filled later */ |
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put_le32(pb, 12 * 1024); /* suggested buffer size */ |
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put_le32(pb, -1); /* quality */ |
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put_le32(pb, au_ssize); /* sample size */ |
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put_le32(pb, 0); |
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put_le32(pb, 0); |
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break; |
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default: |
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return -1; |
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} |
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end_tag(pb, strh); |
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|
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strf = start_tag(pb, "strf"); |
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switch(stream->codec_type) { |
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case CODEC_TYPE_VIDEO: |
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put_bmp_header(pb, stream, codec_bmp_tags, 0); |
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break; |
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case CODEC_TYPE_AUDIO: |
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if (put_wav_header(pb, stream) < 0) { |
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av_free(avi); |
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return -1; |
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} |
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break; |
|
default: |
|
return -1; |
|
} |
|
end_tag(pb, strf); |
|
|
|
if (!url_is_streamed(pb)) { |
|
unsigned char tag[5]; |
|
int j; |
|
|
|
/* Starting to lay out AVI OpenDML master index. |
|
* We want to make it JUNK entry for now, since we'd |
|
* like to get away without making AVI an OpenDML one |
|
* for compatibility reasons. |
|
*/ |
|
avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0; |
|
avi->indexes[i].indx_start = start_tag(pb, "JUNK"); |
|
put_le16(pb, 4); /* wLongsPerEntry */ |
|
put_byte(pb, 0); /* bIndexSubType (0 == frame index) */ |
|
put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */ |
|
put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */ |
|
put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type)); |
|
/* dwChunkId */ |
|
put_le64(pb, 0); /* dwReserved[3] |
|
put_le32(pb, 0); Must be 0. */ |
|
for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++) |
|
put_le64(pb, 0); |
|
end_tag(pb, avi->indexes[i].indx_start); |
|
} |
|
|
|
end_tag(pb, list2); |
|
} |
|
|
|
if (!url_is_streamed(pb)) { |
|
/* AVI could become an OpenDML one, if it grows beyond 2Gb range */ |
|
avi->odml_list = start_tag(pb, "JUNK"); |
|
put_tag(pb, "odml"); |
|
put_tag(pb, "dmlh"); |
|
put_le32(pb, 248); |
|
for (i = 0; i < 248; i+= 4) |
|
put_le32(pb, 0); |
|
end_tag(pb, avi->odml_list); |
|
} |
|
|
|
end_tag(pb, list1); |
|
|
|
avi->movi_list = start_tag(pb, "LIST"); |
|
put_tag(pb, "movi"); |
|
|
|
put_flush_packet(pb); |
|
|
|
return 0; |
|
} |
|
|
|
static int avi_write_ix(AVFormatContext *s) |
|
{ |
|
ByteIOContext *pb = &s->pb; |
|
AVIContext *avi = s->priv_data; |
|
unsigned char tag[5]; |
|
unsigned char ix_tag[] = "ix00"; |
|
int i, j; |
|
|
|
if (avi->riff_id > AVI_MASTER_INDEX_SIZE) |
|
return -1; |
|
|
|
for (i=0;i<s->nb_streams;i++) { |
|
offset_t ix, pos; |
|
|
|
avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type); |
|
ix_tag[3] = '0' + i; |
|
|
|
/* Writing AVI OpenDML leaf index chunk */ |
|
ix = url_ftell(pb); |
|
put_tag(pb, &ix_tag[0]); /* ix?? */ |
|
put_le32(pb, avi->indexes[i].entry * 8 + 24); |
|
/* chunk size */ |
|
put_le16(pb, 2); /* wLongsPerEntry */ |
|
put_byte(pb, 0); /* bIndexSubType (0 == frame index) */ |
|
put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */ |
|
put_le32(pb, avi->indexes[i].entry); |
|
/* nEntriesInUse */ |
|
put_tag(pb, &tag[0]); /* dwChunkId */ |
|
put_le64(pb, avi->movi_list);/* qwBaseOffset */ |
|
put_le32(pb, 0); /* dwReserved_3 (must be 0) */ |
|
|
|
for (j=0; j<avi->indexes[i].entry; j++) { |
|
AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j); |
|
put_le32(pb, ie->pos + 8); |
|
put_le32(pb, ((uint32_t)ie->len & ~0x80000000) | |
|
(ie->flags & 0x10 ? 0 : 0x80000000)); |
|
} |
|
put_flush_packet(pb); |
|
pos = url_ftell(pb); |
|
|
|
/* Updating one entry in the AVI OpenDML master index */ |
|
url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET); |
|
put_tag(pb, "indx"); /* enabling this entry */ |
|
url_fskip(pb, 8); |
|
put_le32(pb, avi->riff_id); /* nEntriesInUse */ |
|
url_fskip(pb, 16*avi->riff_id); |
|
put_le64(pb, ix); /* qwOffset */ |
|
put_le32(pb, pos - ix); /* dwSize */ |
|
put_le32(pb, avi->indexes[i].entry); /* dwDuration */ |
|
|
|
url_fseek(pb, pos, SEEK_SET); |
|
} |
|
return 0; |
|
} |
|
|
|
static int avi_write_idx1(AVFormatContext *s) |
|
{ |
|
ByteIOContext *pb = &s->pb; |
|
AVIContext *avi = s->priv_data; |
|
offset_t file_size, idx_chunk; |
|
int i, n, nb_frames, au_byterate, au_ssize, au_scale; |
|
AVCodecContext *stream; |
|
unsigned char tag[5]; |
|
|
|
if (!url_is_streamed(pb)) { |
|
AVIIentry* ie = 0, *tie; |
|
int entry[MAX_STREAMS]; |
|
int empty, stream_id = -1; |
|
|
|
idx_chunk = start_tag(pb, "idx1"); |
|
memset(&entry[0], 0, sizeof(entry)); |
|
do { |
|
empty = 1; |
|
for (i=0; i<s->nb_streams; i++) { |
|
if (avi->indexes[i].entry <= entry[i]) |
|
continue; |
|
|
|
tie = avi_get_ientry(&avi->indexes[i], entry[i]); |
|
if (empty || tie->pos < ie->pos) { |
|
ie = tie; |
|
stream_id = i; |
|
} |
|
empty = 0; |
|
} |
|
if (!empty) { |
|
avi_stream2fourcc(&tag[0], stream_id, |
|
s->streams[stream_id]->codec.codec_type); |
|
put_tag(pb, &tag[0]); |
|
put_le32(pb, ie->flags); |
|
put_le32(pb, ie->pos); |
|
put_le32(pb, ie->len); |
|
entry[stream_id]++; |
|
} |
|
} while (!empty); |
|
end_tag(pb, idx_chunk); |
|
|
|
/* Fill in frame/sample counters */ |
|
file_size = url_ftell(pb); |
|
nb_frames = 0; |
|
for(n=0;n<s->nb_streams;n++) { |
|
if (avi->frames_hdr_strm[n] != 0) { |
|
stream = &s->streams[n]->codec; |
|
url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET); |
|
parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale); |
|
if (au_ssize == 0) { |
|
put_le32(pb, stream->frame_number); |
|
nb_frames += stream->frame_number; |
|
} else { |
|
put_le32(pb, avi->audio_strm_length[n] / au_ssize); |
|
} |
|
} |
|
} |
|
if (avi->frames_hdr_all != 0) { |
|
url_fseek(pb, avi->frames_hdr_all, SEEK_SET); |
|
put_le32(pb, nb_frames); |
|
} |
|
url_fseek(pb, file_size, SEEK_SET); |
|
} |
|
return 0; |
|
} |
|
|
|
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt) |
|
{ |
|
AVIContext *avi = s->priv_data; |
|
ByteIOContext *pb = &s->pb; |
|
unsigned char tag[5]; |
|
unsigned int flags=0; |
|
const int stream_index= pkt->stream_index; |
|
AVCodecContext *enc= &s->streams[stream_index]->codec; |
|
int size= pkt->size; |
|
|
|
// av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index); |
|
while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){ |
|
AVPacket empty_packet; |
|
|
|
av_init_packet(&empty_packet); |
|
empty_packet.size= 0; |
|
empty_packet.data= NULL; |
|
empty_packet.stream_index= stream_index; |
|
avi_write_packet(s, &empty_packet); |
|
// av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]); |
|
} |
|
avi->packet_count[stream_index]++; |
|
|
|
if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) { |
|
avi_write_ix(s); |
|
end_tag(pb, avi->movi_list); |
|
|
|
if (avi->riff_id == 1) |
|
avi_write_idx1(s); |
|
|
|
end_tag(pb, avi->riff_start); |
|
avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi"); |
|
} |
|
|
|
avi_stream2fourcc(&tag[0], stream_index, enc->codec_type); |
|
if(pkt->flags&PKT_FLAG_KEY) |
|
flags = 0x10; |
|
if (enc->codec_type == CODEC_TYPE_AUDIO) { |
|
avi->audio_strm_length[stream_index] += size; |
|
} |
|
|
|
if (!url_is_streamed(&s->pb)) { |
|
AVIIndex* idx = &avi->indexes[stream_index]; |
|
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE; |
|
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE; |
|
if (idx->ents_allocated <= idx->entry) { |
|
idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*)); |
|
if (!idx->cluster) |
|
return -1; |
|
idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry)); |
|
if (!idx->cluster[cl]) |
|
return -1; |
|
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE; |
|
} |
|
|
|
idx->cluster[cl][id].flags = flags; |
|
idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list; |
|
idx->cluster[cl][id].len = size; |
|
idx->entry++; |
|
} |
|
|
|
put_buffer(pb, tag, 4); |
|
put_le32(pb, size); |
|
put_buffer(pb, pkt->data, size); |
|
if (size & 1) |
|
put_byte(pb, 0); |
|
|
|
put_flush_packet(pb); |
|
return 0; |
|
} |
|
|
|
static int avi_write_trailer(AVFormatContext *s) |
|
{ |
|
AVIContext *avi = s->priv_data; |
|
ByteIOContext *pb = &s->pb; |
|
int res = 0; |
|
int i, j, n, nb_frames; |
|
offset_t file_size; |
|
|
|
if (avi->riff_id == 1) { |
|
end_tag(pb, avi->movi_list); |
|
res = avi_write_idx1(s); |
|
end_tag(pb, avi->riff_start); |
|
} else { |
|
avi_write_ix(s); |
|
end_tag(pb, avi->movi_list); |
|
end_tag(pb, avi->riff_start); |
|
|
|
file_size = url_ftell(pb); |
|
url_fseek(pb, avi->odml_list - 8, SEEK_SET); |
|
put_tag(pb, "LIST"); /* Making this AVI OpenDML one */ |
|
url_fskip(pb, 16); |
|
|
|
for (n=nb_frames=0;n<s->nb_streams;n++) { |
|
AVCodecContext *stream = &s->streams[n]->codec; |
|
if (stream->codec_type == CODEC_TYPE_VIDEO) { |
|
if (nb_frames < stream->frame_number) |
|
nb_frames = stream->frame_number; |
|
} else { |
|
if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) { |
|
nb_frames += stream->frame_number; |
|
} |
|
} |
|
} |
|
put_le32(pb, nb_frames); |
|
url_fseek(pb, file_size, SEEK_SET); |
|
} |
|
put_flush_packet(pb); |
|
|
|
for (i=0; i<MAX_STREAMS; i++) { |
|
for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++) |
|
av_free(avi->indexes[i].cluster[j]); |
|
av_free(avi->indexes[i].cluster); |
|
avi->indexes[i].cluster = NULL; |
|
avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0; |
|
} |
|
|
|
return res; |
|
} |
|
|
|
static AVOutputFormat avi_oformat = { |
|
"avi", |
|
"avi format", |
|
"video/x-msvideo", |
|
"avi", |
|
sizeof(AVIContext), |
|
CODEC_ID_MP2, |
|
CODEC_ID_MPEG4, |
|
avi_write_header, |
|
avi_write_packet, |
|
avi_write_trailer, |
|
}; |
|
|
|
int avienc_init(void) |
|
{ |
|
av_register_output_format(&avi_oformat); |
|
return 0; |
|
} |
|
#endif //CONFIG_ENCODERS
|
|
|