/* * AVI encoder. * Copyright (c) 2000 Fabrice Bellard. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "avformat.h" #include "avi.h" /* * TODO: * - fill all fields if non streamed (nb_frames for example) */ #ifdef CONFIG_ENCODERS typedef struct AVIIentry { unsigned int flags, pos, len; } AVIIentry; #define AVI_INDEX_CLUSTER_SIZE 16384 typedef struct AVIIndex { offset_t indx_start; int entry; int ents_allocated; AVIIentry** cluster; } AVIIndex; typedef struct { offset_t riff_start, movi_list, odml_list; offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS]; int audio_strm_length[MAX_STREAMS]; int riff_id; AVIIndex indexes[MAX_STREAMS]; } AVIContext; static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id) { int cl = ent_id / AVI_INDEX_CLUSTER_SIZE; int id = ent_id % AVI_INDEX_CLUSTER_SIZE; return &idx->cluster[cl][id]; } offset_t start_tag(ByteIOContext *pb, const char *tag) { put_tag(pb, tag); put_le32(pb, 0); return url_ftell(pb); } void end_tag(ByteIOContext *pb, offset_t start) { offset_t pos; pos = url_ftell(pb); url_fseek(pb, start - 4, SEEK_SET); put_le32(pb, (uint32_t)(pos - start)); url_fseek(pb, pos, SEEK_SET); } #endif //CONFIG_ENCODERS /* Note: when encoding, the first matching tag is used, so order is important if multiple tags possible for a given codec. */ const CodecTag codec_bmp_tags[] = { { CODEC_ID_H264, MKTAG('H', '2', '6', '4') }, { CODEC_ID_H263, MKTAG('H', '2', '6', '3') }, { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') }, { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */ /* added based on MPlayer */ { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') }, { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') }, { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 }, { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 }, { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 }, { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') }, { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') }, { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */ /* added based on MPlayer */ { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') }, { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') }, { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') }, { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */ { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, /* added based on MPlayer */ { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') }, { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') }, { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') }, { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') }, { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') }, { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') }, { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') }, { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') }, /* added based on MPlayer */ { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') }, { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') }, { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') }, /* added based on MPlayer */ { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') }, { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') }, { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') }, { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') }, { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') }, { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') }, { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') }, { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') }, { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') }, { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') }, { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') }, { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') }, { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */ { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') }, { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') }, { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') }, { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') }, { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') }, { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') }, { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') }, { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') }, { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') }, { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') }, { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') }, { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') }, { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) }, { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') }, { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') }, { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') }, { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') }, { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') }, { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') }, { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') }, { 0, 0 }, }; unsigned int codec_get_tag(const CodecTag *tags, int id) { while (tags->id != 0) { if (tags->id == id) return tags->tag; tags++; } return 0; } static unsigned int codec_get_asf_tag(const CodecTag *tags, int id) { while (tags->id != 0) { if (!tags->invalid_asf && tags->id == id) return tags->tag; tags++; } return 0; } enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag) { while (tags->id != 0) { if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF) && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF) && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF) && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF)) return tags->id; tags++; } return CODEC_ID_NONE; } unsigned int codec_get_bmp_tag(int id) { return codec_get_tag(codec_bmp_tags, id); } unsigned int codec_get_wav_tag(int id) { return codec_get_tag(codec_wav_tags, id); } enum CodecID codec_get_bmp_id(unsigned int tag) { return codec_get_id(codec_bmp_tags, tag); } enum CodecID codec_get_wav_id(unsigned int tag) { return codec_get_id(codec_wav_tags, tag); } #ifdef CONFIG_ENCODERS /* BITMAPINFOHEADER header */ void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf) { put_le32(pb, 40 + enc->extradata_size); /* size */ put_le32(pb, enc->width); put_le32(pb, enc->height); put_le16(pb, 1); /* planes */ put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */ /* compression type */ put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : enc->codec_tag); put_le32(pb, enc->width * enc->height * 3); put_le32(pb, 0); put_le32(pb, 0); put_le32(pb, 0); put_le32(pb, 0); put_buffer(pb, enc->extradata, enc->extradata_size); if (enc->extradata_size & 1) put_byte(pb, 0); } static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale) { switch(stream->codec_id) { case CODEC_ID_PCM_S16LE: *au_scale = *au_ssize = 2*stream->channels; *au_byterate = *au_ssize * stream->sample_rate; break; case CODEC_ID_PCM_U8: case CODEC_ID_PCM_ALAW: case CODEC_ID_PCM_MULAW: *au_scale = *au_ssize = stream->channels; *au_byterate = *au_ssize * stream->sample_rate; break; case CODEC_ID_MP2: *au_ssize = 1; *au_scale = 1; *au_byterate = stream->bit_rate / 8; case CODEC_ID_MP3: *au_ssize = 1; *au_scale = 1; *au_byterate = stream->bit_rate / 8; default: *au_ssize = 1; *au_scale = 1; *au_byterate = stream->bit_rate / 8; break; } } static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb, const char* riff_tag, const char* list_tag) { offset_t loff; int i; avi->riff_id++; for (i=0; i<MAX_STREAMS; i++) avi->indexes[i].entry = 0; avi->riff_start = start_tag(pb, "RIFF"); put_tag(pb, riff_tag); loff = start_tag(pb, "LIST"); put_tag(pb, list_tag); return loff; } static unsigned char* avi_stream2fourcc(unsigned char* tag, int index, enum CodecType type) { tag[0] = '0'; tag[1] = '0' + index; if (type == CODEC_TYPE_VIDEO) { tag[2] = 'd'; tag[3] = 'c'; } else { tag[2] = 'w'; tag[3] = 'b'; } tag[4] = '\0'; return tag; } static int avi_write_header(AVFormatContext *s) { AVIContext *avi = s->priv_data; ByteIOContext *pb = &s->pb; int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale; AVCodecContext *stream, *video_enc; offset_t list1, list2, strh, strf; /* header list */ avi->riff_id = 0; list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl"); /* avi header */ put_tag(pb, "avih"); put_le32(pb, 14 * 4); bitrate = 0; video_enc = NULL; for(n=0;n<s->nb_streams;n++) { stream = &s->streams[n]->codec; bitrate += stream->bit_rate; if (stream->codec_type == CODEC_TYPE_VIDEO) video_enc = stream; } nb_frames = 0; if(video_enc){ put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate)); } else { put_le32(pb, 0); } put_le32(pb, bitrate / 8); /* XXX: not quite exact */ put_le32(pb, 0); /* padding */ put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */ avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */ put_le32(pb, nb_frames); /* nb frames, filled later */ put_le32(pb, 0); /* initial frame */ put_le32(pb, s->nb_streams); /* nb streams */ put_le32(pb, 1024 * 1024); /* suggested buffer size */ if(video_enc){ put_le32(pb, video_enc->width); put_le32(pb, video_enc->height); } else { put_le32(pb, 0); put_le32(pb, 0); } put_le32(pb, 0); /* reserved */ put_le32(pb, 0); /* reserved */ put_le32(pb, 0); /* reserved */ put_le32(pb, 0); /* reserved */ /* stream list */ for(i=0;i<n;i++) { list2 = start_tag(pb, "LIST"); put_tag(pb, "strl"); stream = &s->streams[i]->codec; /* FourCC should really be set by the codec itself */ if (! stream->codec_tag) { stream->codec_tag = codec_get_bmp_tag(stream->codec_id); } /* stream generic header */ strh = start_tag(pb, "strh"); switch(stream->codec_type) { case CODEC_TYPE_VIDEO: put_tag(pb, "vids"); put_le32(pb, stream->codec_tag); put_le32(pb, 0); /* flags */ put_le16(pb, 0); /* priority */ put_le16(pb, 0); /* language */ put_le32(pb, 0); /* initial frame */ put_le32(pb, stream->frame_rate_base); /* scale */ put_le32(pb, stream->frame_rate); /* rate */ put_le32(pb, 0); /* start */ avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */ put_le32(pb, nb_frames); /* length, XXX: fill later */ put_le32(pb, 1024 * 1024); /* suggested buffer size */ put_le32(pb, -1); /* quality */ put_le32(pb, stream->width * stream->height * 3); /* sample size */ put_le16(pb, 0); put_le16(pb, 0); put_le16(pb, stream->width); put_le16(pb, stream->height); break; case CODEC_TYPE_AUDIO: put_tag(pb, "auds"); put_le32(pb, 1); /* tag */ put_le32(pb, 0); /* flags */ put_le16(pb, 0); /* priority */ put_le16(pb, 0); /* language */ put_le32(pb, 0); /* initial frame */ parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale); put_le32(pb, au_scale); /* scale */ put_le32(pb, au_byterate); /* rate */ put_le32(pb, 0); /* start */ avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */ put_le32(pb, 0); /* length, XXX: filled later */ put_le32(pb, 12 * 1024); /* suggested buffer size */ put_le32(pb, -1); /* quality */ put_le32(pb, au_ssize); /* sample size */ put_le32(pb, 0); put_le32(pb, 0); break; default: av_abort(); } end_tag(pb, strh); strf = start_tag(pb, "strf"); switch(stream->codec_type) { case CODEC_TYPE_VIDEO: put_bmp_header(pb, stream, codec_bmp_tags, 0); break; case CODEC_TYPE_AUDIO: if (put_wav_header(pb, stream) < 0) { av_free(avi); return -1; } break; default: av_abort(); } 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); if (stream->codec_type == CODEC_TYPE_VIDEO) { put_le32(pb, stream->frame_number); 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) { put_le32(pb, stream->frame_number); nb_frames += stream->frame_number; } else { parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale); 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, int stream_index, const uint8_t *buf, int size, int64_t pts) { AVIContext *avi = s->priv_data; ByteIOContext *pb = &s->pb; unsigned char tag[5]; unsigned int flags; AVCodecContext *enc; 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"); } enc = &s->streams[stream_index]->codec; avi_stream2fourcc(&tag[0], stream_index, enc->codec_type); if (enc->codec_type == CODEC_TYPE_AUDIO) { avi->audio_strm_length[stream_index] += size; flags = 0x10; } else flags = enc->coded_frame->key_frame ? 0x10 : 0x00; 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, buf, 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