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* Copyright (c) 2000 Fabrice Bellard.
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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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* 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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* 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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* - fill all fields if non streamed (nb_frames for example)
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typedef struct AVIIentry {
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unsigned int flags, pos, len;
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#define AVI_INDEX_CLUSTER_SIZE 16384
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typedef struct AVIIndex {
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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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AVIIndex indexes[MAX_STREAMS];
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static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id)
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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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offset_t start_tag(ByteIOContext *pb, const char *tag)
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void end_tag(ByteIOContext *pb, offset_t start)
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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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/* 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_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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/* 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('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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/* 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_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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/* 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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/* 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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/* added based on MPlayer */
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{ CODEC_ID_MSMPEG4V1, MKTAG('D', 'I', 'V', '4') },
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{ CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
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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_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
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{ CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
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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_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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unsigned int codec_get_tag(const CodecTag *tags, int id)
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while (tags->id != 0) {
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static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
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while (tags->id != 0) {
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if (!tags->invalid_asf && tags->id == id)
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enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
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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 CODEC_ID_NONE;
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unsigned int codec_get_bmp_tag(int id)
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return codec_get_tag(codec_bmp_tags, id);
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unsigned int codec_get_wav_tag(int id)
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return codec_get_tag(codec_wav_tags, id);
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enum CodecID codec_get_bmp_id(unsigned int tag)
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return codec_get_id(codec_bmp_tags, tag);
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enum CodecID codec_get_wav_id(unsigned int tag)
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return codec_get_id(codec_wav_tags, tag);
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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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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 ? 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_buffer(pb, enc->extradata, enc->extradata_size);
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if (enc->extradata_size & 1)
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static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale)
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switch(stream->codec_id) {
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case CODEC_ID_PCM_S16LE:
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*au_scale = *au_ssize = 2*stream->channels;
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*au_byterate = *au_ssize * stream->sample_rate;
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case CODEC_ID_PCM_U8:
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case CODEC_ID_PCM_ALAW:
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case CODEC_ID_PCM_MULAW:
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*au_scale = *au_ssize = stream->channels;
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*au_byterate = *au_ssize * stream->sample_rate;
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*au_byterate = stream->bit_rate / 8;
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*au_byterate = stream->bit_rate / 8;
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*au_byterate = stream->bit_rate / 8;
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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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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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static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
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tag[1] = '0' + index;
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if (type == CODEC_TYPE_VIDEO) {
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static int avi_write_header(AVFormatContext *s)
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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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list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
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put_le32(pb, 14 * 4);
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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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put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate));
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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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put_le32(pb, video_enc->width);
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put_le32(pb, video_enc->height);
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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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list2 = start_tag(pb, "LIST");
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stream = &s->streams[i]->codec;
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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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/* 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_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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put_le32(pb, stream->frame_rate_base); /* scale */
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put_le32(pb, stream->frame_rate); /* rate */
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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, stream->width * stream->height * 3); /* sample size */
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put_le16(pb, stream->width);
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put_le16(pb, stream->height);
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case CODEC_TYPE_AUDIO:
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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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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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strf = start_tag(pb, "strf");
402
switch(stream->codec_type) {
403
case CODEC_TYPE_VIDEO:
404
put_bmp_header(pb, stream, codec_bmp_tags, 0);
406
case CODEC_TYPE_AUDIO:
407
if (put_wav_header(pb, stream) < 0) {
417
if (!url_is_streamed(pb)) {
418
unsigned char tag[5];
421
/* Starting to lay out AVI OpenDML master index.
422
* We want to make it JUNK entry for now, since we'd
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* like to get away without making AVI an OpenDML one
424
* for compatibility reasons.
426
avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
427
avi->indexes[i].indx_start = start_tag(pb, "JUNK");
428
put_le16(pb, 4); /* wLongsPerEntry */
429
put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
430
put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
431
put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
432
put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
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put_le64(pb, 0); /* dwReserved[3]
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put_le32(pb, 0); Must be 0. */
436
for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
438
end_tag(pb, avi->indexes[i].indx_start);
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if (!url_is_streamed(pb)) {
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/* AVI could become an OpenDML one, if it grows beyond 2Gb range */
446
avi->odml_list = start_tag(pb, "JUNK");
450
for (i = 0; i < 248; i+= 4)
452
end_tag(pb, avi->odml_list);
457
avi->movi_list = start_tag(pb, "LIST");
460
put_flush_packet(pb);
465
static int avi_write_ix(AVFormatContext *s)
467
ByteIOContext *pb = &s->pb;
468
AVIContext *avi = s->priv_data;
469
unsigned char tag[5];
470
unsigned char ix_tag[] = "ix00";
473
if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
476
for (i=0;i<s->nb_streams;i++) {
479
avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
482
/* Writing AVI OpenDML leaf index chunk */
484
put_tag(pb, &ix_tag[0]); /* ix?? */
485
put_le32(pb, avi->indexes[i].entry * 8 + 24);
487
put_le16(pb, 2); /* wLongsPerEntry */
488
put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
489
put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
490
put_le32(pb, avi->indexes[i].entry);
492
put_tag(pb, &tag[0]); /* dwChunkId */
493
put_le64(pb, avi->movi_list);/* qwBaseOffset */
494
put_le32(pb, 0); /* dwReserved_3 (must be 0) */
496
for (j=0; j<avi->indexes[i].entry; j++) {
497
AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
498
put_le32(pb, ie->pos + 8);
499
put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
500
(ie->flags & 0x10 ? 0 : 0x80000000));
502
put_flush_packet(pb);
505
/* Updating one entry in the AVI OpenDML master index */
506
url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
507
put_tag(pb, "indx"); /* enabling this entry */
509
put_le32(pb, avi->riff_id); /* nEntriesInUse */
510
url_fskip(pb, 16*avi->riff_id);
511
put_le64(pb, ix); /* qwOffset */
512
put_le32(pb, pos - ix); /* dwSize */
513
put_le32(pb, avi->indexes[i].entry); /* dwDuration */
515
url_fseek(pb, pos, SEEK_SET);
520
static int avi_write_idx1(AVFormatContext *s)
522
ByteIOContext *pb = &s->pb;
523
AVIContext *avi = s->priv_data;
524
offset_t file_size, idx_chunk;
525
int i, n, nb_frames, au_byterate, au_ssize, au_scale;
526
AVCodecContext *stream;
527
unsigned char tag[5];
529
if (!url_is_streamed(pb)) {
530
AVIIentry* ie = 0, *tie;
531
int entry[MAX_STREAMS];
532
int empty, stream_id = -1;
534
idx_chunk = start_tag(pb, "idx1");
535
memset(&entry[0], 0, sizeof(entry));
538
for (i=0; i<s->nb_streams; i++) {
539
if (avi->indexes[i].entry <= entry[i])
542
tie = avi_get_ientry(&avi->indexes[i], entry[i]);
543
if (empty || tie->pos < ie->pos) {
550
avi_stream2fourcc(&tag[0], stream_id,
551
s->streams[stream_id]->codec.codec_type);
552
put_tag(pb, &tag[0]);
553
put_le32(pb, ie->flags);
554
put_le32(pb, ie->pos);
555
put_le32(pb, ie->len);
559
end_tag(pb, idx_chunk);
561
/* Fill in frame/sample counters */
562
file_size = url_ftell(pb);
564
for(n=0;n<s->nb_streams;n++) {
565
if (avi->frames_hdr_strm[n] != 0) {
566
stream = &s->streams[n]->codec;
567
url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
568
if (stream->codec_type == CODEC_TYPE_VIDEO) {
569
put_le32(pb, stream->frame_number);
570
if (nb_frames < stream->frame_number)
571
nb_frames = stream->frame_number;
573
if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
574
put_le32(pb, stream->frame_number);
575
nb_frames += stream->frame_number;
577
parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
578
put_le32(pb, avi->audio_strm_length[n] / au_ssize);
583
if (avi->frames_hdr_all != 0) {
584
url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
585
put_le32(pb, nb_frames);
587
url_fseek(pb, file_size, SEEK_SET);
592
static int avi_write_packet(AVFormatContext *s, int stream_index,
593
const uint8_t *buf, int size, int64_t pts)
595
AVIContext *avi = s->priv_data;
596
ByteIOContext *pb = &s->pb;
597
unsigned char tag[5];
601
if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) {
603
end_tag(pb, avi->movi_list);
605
if (avi->riff_id == 1)
608
end_tag(pb, avi->riff_start);
609
avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
612
enc = &s->streams[stream_index]->codec;
613
avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
614
if (enc->codec_type == CODEC_TYPE_AUDIO) {
615
avi->audio_strm_length[stream_index] += size;
618
flags = enc->coded_frame->key_frame ? 0x10 : 0x00;
620
if (!url_is_streamed(&s->pb)) {
621
AVIIndex* idx = &avi->indexes[stream_index];
622
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
623
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
624
if (idx->ents_allocated <= idx->entry) {
625
idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
628
idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
629
if (!idx->cluster[cl])
631
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
634
idx->cluster[cl][id].flags = flags;
635
idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
636
idx->cluster[cl][id].len = size;
640
put_buffer(pb, tag, 4);
642
put_buffer(pb, buf, size);
646
put_flush_packet(pb);
650
static int avi_write_trailer(AVFormatContext *s)
652
AVIContext *avi = s->priv_data;
653
ByteIOContext *pb = &s->pb;
655
int i, j, n, nb_frames;
658
if (avi->riff_id == 1) {
659
end_tag(pb, avi->movi_list);
660
res = avi_write_idx1(s);
661
end_tag(pb, avi->riff_start);
664
end_tag(pb, avi->movi_list);
665
end_tag(pb, avi->riff_start);
667
file_size = url_ftell(pb);
668
url_fseek(pb, avi->odml_list - 8, SEEK_SET);
669
put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
672
for (n=nb_frames=0;n<s->nb_streams;n++) {
673
AVCodecContext *stream = &s->streams[n]->codec;
674
if (stream->codec_type == CODEC_TYPE_VIDEO) {
675
if (nb_frames < stream->frame_number)
676
nb_frames = stream->frame_number;
678
if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
679
nb_frames += stream->frame_number;
683
put_le32(pb, nb_frames);
684
url_fseek(pb, file_size, SEEK_SET);
686
put_flush_packet(pb);
688
for (i=0; i<MAX_STREAMS; i++) {
689
for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
690
av_free(avi->indexes[i].cluster[j]);
691
av_free(avi->indexes[i].cluster);
692
avi->indexes[i].cluster = NULL;
693
avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
699
static AVOutputFormat avi_oformat = {
712
int avienc_init(void)
714
av_register_output_format(&avi_oformat);