diff options
Diffstat (limited to 'contrib/ffmpeg/libavformat/avienc.c')
| -rw-r--r-- | contrib/ffmpeg/libavformat/avienc.c | 580 |
1 files changed, 0 insertions, 580 deletions
diff --git a/contrib/ffmpeg/libavformat/avienc.c b/contrib/ffmpeg/libavformat/avienc.c deleted file mode 100644 index ac8b2670d..000000000 --- a/contrib/ffmpeg/libavformat/avienc.c +++ /dev/null @@ -1,580 +0,0 @@ -/* - * AVI muxer - * Copyright (c) 2000 Fabrice Bellard. - * - * This file is part of FFmpeg. - * - * FFmpeg 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 2.1 of the License, or (at your option) any later version. - * - * FFmpeg 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 FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ -#include "avformat.h" -#include "avi.h" -#include "riff.h" - -/* - * TODO: - * - fill all fields if non streamed (nb_frames for example) - */ - -#ifdef CONFIG_AVI_MUXER -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; - int packet_count[MAX_STREAMS]; - - 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]; -} - -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 char* avi_stream2fourcc(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 void avi_write_info_tag(ByteIOContext *pb, const char *tag, const char *str) -{ - int len = strlen(str); - if (len > 0) { - len++; - put_tag(pb, tag); - put_le32(pb, len); - put_strz(pb, str); - if (len & 1) - put_byte(pb, 0); - } -} - -static int avi_write_counters(AVFormatContext* s, int riff_id) -{ - ByteIOContext *pb = &s->pb; - AVIContext *avi = s->priv_data; - int n, au_byterate, au_ssize, au_scale, nb_frames = 0; - offset_t file_size; - AVCodecContext* stream; - - file_size = url_ftell(pb); - for(n = 0; n < s->nb_streams; n++) { - assert(avi->frames_hdr_strm[n]); - stream = s->streams[n]->codec; - url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET); - ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale); - if(au_ssize == 0) { - put_le32(pb, avi->packet_count[n]); - } else { - put_le32(pb, avi->audio_strm_length[n] / au_ssize); - } - if(stream->codec_type == CODEC_TYPE_VIDEO) - nb_frames = FFMAX(nb_frames, avi->packet_count[n]); - } - if(riff_id == 1) { - assert(avi->frames_hdr_all); - 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_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_C(1000000) * video_enc->time_base.num / video_enc->time_base.den)); - } else { - put_le32(pb, 0); - } - put_le32(pb, bitrate / 8); /* XXX: not quite exact */ - put_le32(pb, 0); /* padding */ - if (url_is_streamed(pb)) - put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */ - else - 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"); break; - case CODEC_TYPE_AUDIO: put_tag(pb, "auds"); break; -// case CODEC_TYPE_TEXT : put_tag(pb, "txts"); break; - case CODEC_TYPE_DATA : put_tag(pb, "dats"); break; - } - if(stream->codec_type == CODEC_TYPE_VIDEO) - put_le32(pb, stream->codec_tag); - else - put_le32(pb, 1); - put_le32(pb, 0); /* flags */ - put_le16(pb, 0); /* priority */ - put_le16(pb, 0); /* language */ - put_le32(pb, 0); /* initial frame */ - - ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale); - - put_le32(pb, au_scale); /* scale */ - put_le32(pb, au_byterate); /* rate */ - av_set_pts_info(s->streams[i], 64, au_scale, au_byterate); - - put_le32(pb, 0); /* start */ - avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */ - if (url_is_streamed(pb)) - put_le32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */ - else - put_le32(pb, 0); /* length, XXX: filled later */ - - /* suggested buffer size */ //FIXME set at the end to largest chunk - if(stream->codec_type == CODEC_TYPE_VIDEO) - put_le32(pb, 1024 * 1024); - else if(stream->codec_type == CODEC_TYPE_AUDIO) - put_le32(pb, 12 * 1024); - else - put_le32(pb, 0); - put_le32(pb, -1); /* quality */ - put_le32(pb, au_ssize); /* sample size */ - put_le32(pb, 0); - put_le16(pb, stream->width); - put_le16(pb, stream->height); - end_tag(pb, strh); - - if(stream->codec_type != CODEC_TYPE_DATA){ - 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: - 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); - - list2 = start_tag(pb, "LIST"); - put_tag(pb, "INFO"); - avi_write_info_tag(pb, "INAM", s->title); - avi_write_info_tag(pb, "IART", s->author); - avi_write_info_tag(pb, "ICOP", s->copyright); - avi_write_info_tag(pb, "ICMT", s->comment); - avi_write_info_tag(pb, "IPRD", s->album); - avi_write_info_tag(pb, "IGNR", s->genre); - if (s->track) { - char str_track[4]; - snprintf(str_track, 4, "%d", s->track); - avi_write_info_tag(pb, "IPRT", str_track); - } - if(!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) - avi_write_info_tag(pb, "ISFT", LIBAVFORMAT_IDENT); - end_tag(pb, list2); - - /* some padding for easier tag editing */ - list2 = start_tag(pb, "JUNK"); - for (i = 0; i < 1016; i += 4) - put_le32(pb, 0); - end_tag(pb, list2); - - 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; - char tag[5]; - char ix_tag[] = "ix00"; - int i, j; - - assert(!url_is_streamed(pb)); - - 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 idx_chunk; - int i; - 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); - - avi_write_counters(s, avi->riff_id); - } - 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, "%"PRId64" %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 %"PRId64" %d\n", pkt->dts, avi->packet_count[stream_index]); - } - avi->packet_count[stream_index]++; - - // Make sure to put an OpenDML chunk when the file size exceeds the limits - if (!url_is_streamed(pb) && - (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 (!url_is_streamed(pb)){ - 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 < avi->packet_count[n]) - nb_frames = avi->packet_count[n]; - } else { - if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) { - nb_frames += avi->packet_count[n]; - } - } - } - put_le32(pb, nb_frames); - url_fseek(pb, file_size, SEEK_SET); - - avi_write_counters(s, avi->riff_id); - } - } - 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; -} - -AVOutputFormat avi_muxer = { - "avi", - "avi format", - "video/x-msvideo", - "avi", - sizeof(AVIContext), - CODEC_ID_MP2, - CODEC_ID_MPEG4, - avi_write_header, - avi_write_packet, - avi_write_trailer, - .codec_tag= (const AVCodecTag*[]){codec_bmp_tags, codec_wav_tags, 0}, -}; -#endif //CONFIG_AVI_MUXER |