X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftags%2Fsynfig_0_61_05%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavformat%2Favienc.c;fp=synfig-core%2Ftags%2Fsynfig_0_61_05%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavformat%2Favienc.c;h=ce31b21e5287e609f76ae54ca52d858ed1d0f07d;hb=299aecad571ca490ce017004a0d7e555d6df0520;hp=0000000000000000000000000000000000000000;hpb=42861dc634bef4059ca95e5292033315a0b9ce30;p=synfig.git diff --git a/synfig-core/tags/synfig_0_61_05/synfig-core/src/modules/mod_libavcodec/libavformat/avienc.c b/synfig-core/tags/synfig_0_61_05/synfig-core/src/modules/mod_libavcodec/libavformat/avienc.c new file mode 100644 index 0000000..ce31b21 --- /dev/null +++ b/synfig-core/tags/synfig_0_61_05/synfig-core/src/modules/mod_libavcodec/libavformat/avienc.c @@ -0,0 +1,716 @@ +/* + * 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) + */ + +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); +} + +/* 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_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') }, + + /* added based on MPlayer */ + { CODEC_ID_MSMPEG4V1, MKTAG('D', 'I', 'V', '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') }, + { 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); +} + +/* 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; iindexes[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;nnb_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;istreams[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;inb_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; jindexes[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; inb_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;nnb_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;nnb_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; iindexes[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; +}