* support for .au .gif .mov .mp4 by François Revol <revol@free.fr>
hmm any opinions about GIF support ? Originally committed as revision 385 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Zdenek Kabelac
parent
0129e7b3e6
commit
6cea494e32
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@ -4,7 +4,7 @@ CFLAGS= $(OPTFLAGS) -Wall -g -I../libavcodec -DHAVE_AV_CONFIG_H
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OBJS= rm.o mpeg.o asf.o avienc.o jpeg.o swf.o wav.o raw.o \
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avidec.o ffm.o \
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avio.o aviobuf.o utils.o \
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file.o img.o
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file.o img.o au.o gif.o mov.o
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ifeq ($(CONFIG_GRAB),yes)
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OBJS+= grab.o audio.o
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192
libav/au.c
Normal file
192
libav/au.c
Normal file
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@ -0,0 +1,192 @@
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/*
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* AU encoder and decoder
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* Copyright (c) 2001 Gerard Lantau.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* First version by Francois Revol revol@free.fr
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*
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* Reference documents:
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* http://www.opengroup.org/public/pubs/external/auformat.html
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* http://www.goice.co.jp/member/mo/formats/au.html
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*/
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#include "avformat.h"
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#include "avi.h"
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/* if we don't know the size in advance */
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#define AU_UNKOWN_SIZE ((UINT32)(~0))
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/* The ffmpeg codecs we support, and the IDs they have in the file */
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CodecTag codec_au_tags[] = {
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{ CODEC_ID_PCM_MULAW, 1 },
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{ CODEC_ID_PCM_S16BE, 3 },
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{ CODEC_ID_PCM_ALAW, 27 },
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{ 0, 0 },
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};
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/* AUDIO_FILE header */
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int put_au_header(ByteIOContext *pb, AVCodecContext *enc)
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{
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int tag;
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tag = codec_get_tag(codec_au_tags, enc->codec_id);
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if (tag == 0)
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return -1;
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put_tag(pb, ".snd"); /* magic number */
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put_be32(pb, 24); /* header size */
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put_be32(pb, AU_UNKOWN_SIZE); /* data size */
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put_be32(pb, (UINT32)tag); /* codec ID */
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put_be32(pb, enc->sample_rate);
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put_be32(pb, (UINT32)enc->channels);
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return 0;
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}
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static int au_write_header(AVFormatContext *s)
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{
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ByteIOContext *pb = &s->pb;
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s->priv_data = NULL;
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/* format header */
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if (put_au_header(pb, &s->streams[0]->codec) < 0) {
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return -1;
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}
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put_flush_packet(pb);
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return 0;
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}
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static int au_write_packet(AVFormatContext *s, int stream_index_ptr,
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UINT8 *buf, int size)
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{
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ByteIOContext *pb = &s->pb;
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put_buffer(pb, buf, size);
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return 0;
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}
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static int au_write_trailer(AVFormatContext *s)
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{
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ByteIOContext *pb = &s->pb;
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offset_t file_size;
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if (!url_is_streamed(&s->pb)) {
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/* update file size */
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file_size = url_ftell(pb);
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url_fseek(pb, 8, SEEK_SET);
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put_be32(pb, (UINT32)(file_size - 24));
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url_fseek(pb, file_size, SEEK_SET);
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put_flush_packet(pb);
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}
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return 0;
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}
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/* au input */
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static int au_read_header(AVFormatContext *s,
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AVFormatParameters *ap)
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{
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int size;
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unsigned int tag;
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ByteIOContext *pb = &s->pb;
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unsigned int id, codec, channels, rate;
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AVStream *st;
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/* check ".snd" header */
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tag = get_le32(pb);
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if (tag != MKTAG('.', 's', 'n', 'd'))
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return -1;
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size = get_be32(pb); /* header size */
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get_be32(pb); /* data size */
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id = get_be32(pb);
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rate = get_be32(pb);
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channels = get_be32(pb);
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codec = codec_get_id(codec_au_tags, id);
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if (size >= 24) {
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/* skip unused data */
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url_fseek(pb, size - 24, SEEK_CUR);
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}
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/* now we are ready: build format streams */
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st = malloc(sizeof(AVStream));
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if (!st)
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return -1;
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s->nb_streams = 1;
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s->streams[0] = st;
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st->id = 0;
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st->codec.codec_type = CODEC_TYPE_AUDIO;
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st->codec.codec_tag = id;
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st->codec.codec_id = codec;
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st->codec.channels = channels;
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st->codec.sample_rate = rate;
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return 0;
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}
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#define MAX_SIZE 4096
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static int au_read_packet(AVFormatContext *s,
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AVPacket *pkt)
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{
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int packet_size, n, ret;
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if (url_feof(&s->pb))
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return -EIO;
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packet_size = url_get_packet_size(&s->pb);
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n = MAX_SIZE / packet_size;
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if (n <= 0)
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return n = 1;
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if (av_new_packet(pkt, n * packet_size))
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return -EIO;
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pkt->stream_index = 0;
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ret = get_buffer(&s->pb, pkt->data, pkt->size);
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if (ret < 0)
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av_free_packet(pkt);
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/* note: we need to modify the packet size here to handle the last
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packet */
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pkt->size = ret;
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return ret;
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}
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static int au_read_close(AVFormatContext *s)
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{
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return 0;
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}
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AVFormat au_format = {
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"au",
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"SUN AU Format",
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"audio/basic",
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"au",
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CODEC_ID_PCM_S16BE,
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CODEC_ID_NONE,
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au_write_header,
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au_write_packet,
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au_write_trailer,
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au_read_header,
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au_read_packet,
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au_read_close,
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};
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@ -113,6 +113,10 @@ extern AVFormat asf_format;
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/* avienc.c */
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extern AVFormat avi_format;
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/* mov.c */
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extern AVFormat mov_format;
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extern AVFormat mp4_format;
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/* jpegenc.c */
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extern AVFormat mpjpeg_format;
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extern AVFormat jpeg_format;
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@ -121,6 +125,11 @@ extern AVFormat single_jpeg_format;
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/* swfenc.c */
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extern AVFormat swf_format;
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/* gif.c */
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extern AVFormat gif_format;
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/* au.c */
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extern AVFormat au_format;
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/* wav.c */
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extern AVFormat wav_format;
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404
libav/gif.c
Normal file
404
libav/gif.c
Normal file
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@ -0,0 +1,404 @@
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/*
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* Animated GIF encoder
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* Copyright (c) 2000 Gerard Lantau.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* First version by Francois Revol revol@free.fr
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*
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* Features and limitations:
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* - currently no compression is performed,
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* in fact the size of the data is 9/8 the size of the image in 8bpp
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* - uses only a global standard palette
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* - tested with IE 5.0, Opera for BeOS, NetPositive (BeOS), and Mozilla (BeOS).
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*
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* Reference documents:
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* http://www.goice.co.jp/member/mo/formats/gif.html
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* http://astronomy.swin.edu.au/pbourke/dataformats/gif/
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* http://www.dcs.ed.ac.uk/home/mxr/gfx/2d/GIF89a.txt
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*
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* this url claims to have an LZW algorithm not covered by Unisys patent:
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* http://www.msg.net/utility/whirlgif/gifencod.html
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* could help reduce the size of the files _a lot_...
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* some sites mentions an RLE type compression also.
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*/
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#include "avformat.h"
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/* bitstream minipacket size */
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#define GIF_CHUNKS 100
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/* slows down the decoding (and some browsers doesn't like it) */
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/* #define GIF_ADD_APP_HEADER */
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typedef struct {
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unsigned char r;
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unsigned char g;
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unsigned char b;
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} rgb_triplet;
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/* we use the standard 216 color palette */
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/* this script was used to create the palette:
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* for r in 00 33 66 99 cc ff; do for g in 00 33 66 99 cc ff; do echo -n " "; for b in 00 33 66 99 cc ff; do
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* echo -n "{ 0x$r, 0x$g, 0x$b }, "; done; echo ""; done; done
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*/
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const rgb_triplet gif_clut[216] = {
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{ 0x00, 0x00, 0x00 }, { 0x00, 0x00, 0x33 }, { 0x00, 0x00, 0x66 }, { 0x00, 0x00, 0x99 }, { 0x00, 0x00, 0xcc }, { 0x00, 0x00, 0xff },
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{ 0x00, 0x33, 0x00 }, { 0x00, 0x33, 0x33 }, { 0x00, 0x33, 0x66 }, { 0x00, 0x33, 0x99 }, { 0x00, 0x33, 0xcc }, { 0x00, 0x33, 0xff },
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{ 0x00, 0x66, 0x00 }, { 0x00, 0x66, 0x33 }, { 0x00, 0x66, 0x66 }, { 0x00, 0x66, 0x99 }, { 0x00, 0x66, 0xcc }, { 0x00, 0x66, 0xff },
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{ 0x00, 0x99, 0x00 }, { 0x00, 0x99, 0x33 }, { 0x00, 0x99, 0x66 }, { 0x00, 0x99, 0x99 }, { 0x00, 0x99, 0xcc }, { 0x00, 0x99, 0xff },
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{ 0x00, 0xcc, 0x00 }, { 0x00, 0xcc, 0x33 }, { 0x00, 0xcc, 0x66 }, { 0x00, 0xcc, 0x99 }, { 0x00, 0xcc, 0xcc }, { 0x00, 0xcc, 0xff },
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{ 0x00, 0xff, 0x00 }, { 0x00, 0xff, 0x33 }, { 0x00, 0xff, 0x66 }, { 0x00, 0xff, 0x99 }, { 0x00, 0xff, 0xcc }, { 0x00, 0xff, 0xff },
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{ 0x33, 0x00, 0x00 }, { 0x33, 0x00, 0x33 }, { 0x33, 0x00, 0x66 }, { 0x33, 0x00, 0x99 }, { 0x33, 0x00, 0xcc }, { 0x33, 0x00, 0xff },
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{ 0x33, 0x33, 0x00 }, { 0x33, 0x33, 0x33 }, { 0x33, 0x33, 0x66 }, { 0x33, 0x33, 0x99 }, { 0x33, 0x33, 0xcc }, { 0x33, 0x33, 0xff },
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{ 0x33, 0x66, 0x00 }, { 0x33, 0x66, 0x33 }, { 0x33, 0x66, 0x66 }, { 0x33, 0x66, 0x99 }, { 0x33, 0x66, 0xcc }, { 0x33, 0x66, 0xff },
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{ 0x33, 0x99, 0x00 }, { 0x33, 0x99, 0x33 }, { 0x33, 0x99, 0x66 }, { 0x33, 0x99, 0x99 }, { 0x33, 0x99, 0xcc }, { 0x33, 0x99, 0xff },
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{ 0x33, 0xcc, 0x00 }, { 0x33, 0xcc, 0x33 }, { 0x33, 0xcc, 0x66 }, { 0x33, 0xcc, 0x99 }, { 0x33, 0xcc, 0xcc }, { 0x33, 0xcc, 0xff },
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{ 0x33, 0xff, 0x00 }, { 0x33, 0xff, 0x33 }, { 0x33, 0xff, 0x66 }, { 0x33, 0xff, 0x99 }, { 0x33, 0xff, 0xcc }, { 0x33, 0xff, 0xff },
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{ 0x66, 0x00, 0x00 }, { 0x66, 0x00, 0x33 }, { 0x66, 0x00, 0x66 }, { 0x66, 0x00, 0x99 }, { 0x66, 0x00, 0xcc }, { 0x66, 0x00, 0xff },
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{ 0x66, 0x33, 0x00 }, { 0x66, 0x33, 0x33 }, { 0x66, 0x33, 0x66 }, { 0x66, 0x33, 0x99 }, { 0x66, 0x33, 0xcc }, { 0x66, 0x33, 0xff },
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{ 0x66, 0x66, 0x00 }, { 0x66, 0x66, 0x33 }, { 0x66, 0x66, 0x66 }, { 0x66, 0x66, 0x99 }, { 0x66, 0x66, 0xcc }, { 0x66, 0x66, 0xff },
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{ 0x66, 0x99, 0x00 }, { 0x66, 0x99, 0x33 }, { 0x66, 0x99, 0x66 }, { 0x66, 0x99, 0x99 }, { 0x66, 0x99, 0xcc }, { 0x66, 0x99, 0xff },
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{ 0x66, 0xcc, 0x00 }, { 0x66, 0xcc, 0x33 }, { 0x66, 0xcc, 0x66 }, { 0x66, 0xcc, 0x99 }, { 0x66, 0xcc, 0xcc }, { 0x66, 0xcc, 0xff },
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{ 0x66, 0xff, 0x00 }, { 0x66, 0xff, 0x33 }, { 0x66, 0xff, 0x66 }, { 0x66, 0xff, 0x99 }, { 0x66, 0xff, 0xcc }, { 0x66, 0xff, 0xff },
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{ 0x99, 0x00, 0x00 }, { 0x99, 0x00, 0x33 }, { 0x99, 0x00, 0x66 }, { 0x99, 0x00, 0x99 }, { 0x99, 0x00, 0xcc }, { 0x99, 0x00, 0xff },
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{ 0x99, 0x33, 0x00 }, { 0x99, 0x33, 0x33 }, { 0x99, 0x33, 0x66 }, { 0x99, 0x33, 0x99 }, { 0x99, 0x33, 0xcc }, { 0x99, 0x33, 0xff },
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{ 0x99, 0x66, 0x00 }, { 0x99, 0x66, 0x33 }, { 0x99, 0x66, 0x66 }, { 0x99, 0x66, 0x99 }, { 0x99, 0x66, 0xcc }, { 0x99, 0x66, 0xff },
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{ 0x99, 0x99, 0x00 }, { 0x99, 0x99, 0x33 }, { 0x99, 0x99, 0x66 }, { 0x99, 0x99, 0x99 }, { 0x99, 0x99, 0xcc }, { 0x99, 0x99, 0xff },
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{ 0x99, 0xcc, 0x00 }, { 0x99, 0xcc, 0x33 }, { 0x99, 0xcc, 0x66 }, { 0x99, 0xcc, 0x99 }, { 0x99, 0xcc, 0xcc }, { 0x99, 0xcc, 0xff },
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{ 0x99, 0xff, 0x00 }, { 0x99, 0xff, 0x33 }, { 0x99, 0xff, 0x66 }, { 0x99, 0xff, 0x99 }, { 0x99, 0xff, 0xcc }, { 0x99, 0xff, 0xff },
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{ 0xcc, 0x00, 0x00 }, { 0xcc, 0x00, 0x33 }, { 0xcc, 0x00, 0x66 }, { 0xcc, 0x00, 0x99 }, { 0xcc, 0x00, 0xcc }, { 0xcc, 0x00, 0xff },
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{ 0xcc, 0x33, 0x00 }, { 0xcc, 0x33, 0x33 }, { 0xcc, 0x33, 0x66 }, { 0xcc, 0x33, 0x99 }, { 0xcc, 0x33, 0xcc }, { 0xcc, 0x33, 0xff },
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{ 0xcc, 0x66, 0x00 }, { 0xcc, 0x66, 0x33 }, { 0xcc, 0x66, 0x66 }, { 0xcc, 0x66, 0x99 }, { 0xcc, 0x66, 0xcc }, { 0xcc, 0x66, 0xff },
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{ 0xcc, 0x99, 0x00 }, { 0xcc, 0x99, 0x33 }, { 0xcc, 0x99, 0x66 }, { 0xcc, 0x99, 0x99 }, { 0xcc, 0x99, 0xcc }, { 0xcc, 0x99, 0xff },
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{ 0xcc, 0xcc, 0x00 }, { 0xcc, 0xcc, 0x33 }, { 0xcc, 0xcc, 0x66 }, { 0xcc, 0xcc, 0x99 }, { 0xcc, 0xcc, 0xcc }, { 0xcc, 0xcc, 0xff },
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{ 0xcc, 0xff, 0x00 }, { 0xcc, 0xff, 0x33 }, { 0xcc, 0xff, 0x66 }, { 0xcc, 0xff, 0x99 }, { 0xcc, 0xff, 0xcc }, { 0xcc, 0xff, 0xff },
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{ 0xff, 0x00, 0x00 }, { 0xff, 0x00, 0x33 }, { 0xff, 0x00, 0x66 }, { 0xff, 0x00, 0x99 }, { 0xff, 0x00, 0xcc }, { 0xff, 0x00, 0xff },
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{ 0xff, 0x33, 0x00 }, { 0xff, 0x33, 0x33 }, { 0xff, 0x33, 0x66 }, { 0xff, 0x33, 0x99 }, { 0xff, 0x33, 0xcc }, { 0xff, 0x33, 0xff },
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{ 0xff, 0x66, 0x00 }, { 0xff, 0x66, 0x33 }, { 0xff, 0x66, 0x66 }, { 0xff, 0x66, 0x99 }, { 0xff, 0x66, 0xcc }, { 0xff, 0x66, 0xff },
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{ 0xff, 0x99, 0x00 }, { 0xff, 0x99, 0x33 }, { 0xff, 0x99, 0x66 }, { 0xff, 0x99, 0x99 }, { 0xff, 0x99, 0xcc }, { 0xff, 0x99, 0xff },
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{ 0xff, 0xcc, 0x00 }, { 0xff, 0xcc, 0x33 }, { 0xff, 0xcc, 0x66 }, { 0xff, 0xcc, 0x99 }, { 0xff, 0xcc, 0xcc }, { 0xff, 0xcc, 0xff },
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{ 0xff, 0xff, 0x00 }, { 0xff, 0xff, 0x33 }, { 0xff, 0xff, 0x66 }, { 0xff, 0xff, 0x99 }, { 0xff, 0xff, 0xcc }, { 0xff, 0xff, 0xff },
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};
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/* The GIF format uses reversed order for bitstreams... */
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/* at least they don't use PDP_ENDIAN :) */
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/* so we 'extend' PutBitContext. hmmm, OOP :) */
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/* seems this thing changed slightly since I wrote it... */
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#ifdef ALT_BITSTREAM_WRITER
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# error no ALT_BITSTREAM_WRITER support for now
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#endif
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void init_put_bits_rev(PutBitContext *s,
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UINT8 *buffer, int buffer_size,
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void *opaque,
|
||||
void (*write_data)(void *, UINT8 *, int))
|
||||
{
|
||||
init_put_bits(s, buffer, buffer_size, opaque, write_data);
|
||||
}
|
||||
|
||||
void put_bits_rev(PutBitContext *s, int n, unsigned int value)
|
||||
{
|
||||
unsigned int bit_buf;
|
||||
int bit_cnt;
|
||||
|
||||
#ifdef STATS
|
||||
st_out_bit_counts[st_current_index] += n;
|
||||
#endif
|
||||
// printf("put_bits=%d %x\n", n, value);
|
||||
assert(n == 32 || value < (1U << n));
|
||||
|
||||
bit_buf = s->bit_buf;
|
||||
bit_cnt = 32 - s->bit_left; /* XXX:lazyness... was = s->bit_cnt; */
|
||||
|
||||
// printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);
|
||||
/* XXX: optimize */
|
||||
if (n < (32-bit_cnt)) {
|
||||
bit_buf |= value << (bit_cnt);
|
||||
bit_cnt+=n;
|
||||
} else {
|
||||
bit_buf |= value << (bit_cnt);
|
||||
|
||||
*s->buf_ptr = bit_buf & 0xff;
|
||||
s->buf_ptr[1] = (bit_buf >> 8) & 0xff;
|
||||
s->buf_ptr[2] = (bit_buf >> 16) & 0xff;
|
||||
s->buf_ptr[3] = (bit_buf >> 24) & 0xff;
|
||||
|
||||
//printf("bitbuf = %08x\n", bit_buf);
|
||||
s->buf_ptr+=4;
|
||||
if (s->buf_ptr >= s->buf_end)
|
||||
puts("bit buffer overflow !!"); // should never happen ! who got rid of the callback ???
|
||||
// flush_buffer_rev(s);
|
||||
bit_cnt=bit_cnt + n - 32;
|
||||
if (bit_cnt == 0) {
|
||||
bit_buf = 0;
|
||||
} else {
|
||||
bit_buf = value >> (n - bit_cnt);
|
||||
}
|
||||
}
|
||||
|
||||
s->bit_buf = bit_buf;
|
||||
s->bit_left = 32 - bit_cnt;
|
||||
}
|
||||
|
||||
/* return the number of bits output */
|
||||
INT64 get_bit_count_rev(PutBitContext *s)
|
||||
{
|
||||
return get_bit_count(s);
|
||||
}
|
||||
|
||||
void align_put_bits_rev(PutBitContext *s)
|
||||
{
|
||||
align_put_bits(s);
|
||||
}
|
||||
|
||||
/* pad the end of the output stream with zeros */
|
||||
void flush_put_bits_rev(PutBitContext *s)
|
||||
{
|
||||
while (s->bit_left < 32) {
|
||||
/* XXX: should test end of buffer */
|
||||
*s->buf_ptr++=s->bit_buf & 0xff;
|
||||
s->bit_buf>>=8;
|
||||
s->bit_left+=8;
|
||||
}
|
||||
// flush_buffer_rev(s);
|
||||
s->bit_left=32;
|
||||
s->bit_buf=0;
|
||||
}
|
||||
|
||||
/* !RevPutBitContext */
|
||||
|
||||
typedef struct {
|
||||
UINT8 buffer[100]; /* data chunks */
|
||||
INT64 time, file_time;
|
||||
} GIFContext;
|
||||
|
||||
static int gif_write_header(AVFormatContext *s)
|
||||
{
|
||||
GIFContext *gif;
|
||||
ByteIOContext *pb = &s->pb;
|
||||
AVCodecContext *enc, *video_enc;
|
||||
int i, width, height, rate;
|
||||
|
||||
/* XXX: do we reject audio streams or just ignore them ?
|
||||
if(s->nb_streams > 1)
|
||||
return -1;
|
||||
*/
|
||||
|
||||
gif = malloc(sizeof(GIFContext));
|
||||
if (!gif)
|
||||
return -1;
|
||||
s->priv_data = gif;
|
||||
|
||||
gif->time = 0;
|
||||
gif->file_time = 0;
|
||||
|
||||
video_enc = NULL;
|
||||
for(i=0;i<s->nb_streams;i++) {
|
||||
enc = &s->streams[i]->codec;
|
||||
if (enc->codec_type != CODEC_TYPE_AUDIO)
|
||||
video_enc = enc;
|
||||
}
|
||||
|
||||
if (!video_enc) {
|
||||
free(gif);
|
||||
return -1;
|
||||
} else {
|
||||
width = video_enc->width;
|
||||
height = video_enc->height;
|
||||
rate = video_enc->frame_rate;
|
||||
}
|
||||
|
||||
/* XXX: is it allowed ? seems to work so far... */
|
||||
video_enc->pix_fmt = PIX_FMT_RGB24;
|
||||
|
||||
/* GIF header */
|
||||
|
||||
put_tag(pb, "GIF");
|
||||
put_tag(pb, "89a");
|
||||
put_le16(pb, width);
|
||||
put_le16(pb, height);
|
||||
|
||||
put_byte(pb, 0xf7); /* flags: global clut, 256 entries */
|
||||
put_byte(pb, 0x1f); /* background color index */
|
||||
put_byte(pb, 0); /* aspect ratio */
|
||||
|
||||
/* the global palette */
|
||||
|
||||
put_buffer(pb, (unsigned char *)gif_clut, 216*3);
|
||||
for(i=0;i<((256-216)*3);i++)
|
||||
put_byte(pb, 0);
|
||||
|
||||
/* application extension header */
|
||||
/* XXX: not really sure what to put in here... */
|
||||
#ifdef GIF_ADD_APP_HEADER
|
||||
put_byte(pb, 0x21);
|
||||
put_byte(pb, 0xff);
|
||||
put_byte(pb, 0x0b);
|
||||
put_tag(pb, "NETSCAPE2.0");
|
||||
put_byte(pb, 0x03);
|
||||
put_byte(pb, 0x01);
|
||||
put_byte(pb, 0x00);
|
||||
put_byte(pb, 0x00);
|
||||
#endif
|
||||
|
||||
put_flush_packet(&s->pb);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* this is maybe slow, but allows for extensions */
|
||||
static inline unsigned char gif_clut_index(rgb_triplet *clut, UINT8 r, UINT8 g, UINT8 b)
|
||||
{
|
||||
return ((((r)/47)%6)*6*6+(((g)/47)%6)*6+(((b)/47)%6));
|
||||
}
|
||||
|
||||
/* chunk writer callback */
|
||||
/* !!! XXX:deprecated
|
||||
static void gif_put_chunk(void *pbctx, UINT8 *buffer, int count)
|
||||
{
|
||||
ByteIOContext *pb = (ByteIOContext *)pbctx;
|
||||
put_byte(pb, (UINT8)count);
|
||||
put_buffer(pb, buffer, count);
|
||||
}
|
||||
*/
|
||||
|
||||
static int gif_write_video(AVFormatContext *s,
|
||||
AVCodecContext *enc, UINT8 *buf, int size)
|
||||
{
|
||||
ByteIOContext *pb = &s->pb;
|
||||
GIFContext *gif = s->priv_data;
|
||||
int i, left, jiffies;
|
||||
INT64 delay;
|
||||
PutBitContext p;
|
||||
UINT8 buffer[200]; /* 100 * 9 / 8 = 113 */
|
||||
|
||||
|
||||
/* graphic control extension block */
|
||||
put_byte(pb, 0x21);
|
||||
put_byte(pb, 0xf9);
|
||||
put_byte(pb, 0x04); /* block size */
|
||||
put_byte(pb, 0x04); /* flags */
|
||||
|
||||
/* 1 jiffy is 1/70 s */
|
||||
/* the delay_time field indicates the number of jiffies - 1 */
|
||||
delay = gif->file_time - gif->time;
|
||||
|
||||
/* XXX: should use delay, in order to be more accurate */
|
||||
/* instead of using the same rounded value each time */
|
||||
/* XXX: don't even remember if I really use it for now */
|
||||
jiffies = (70*FRAME_RATE_BASE/enc->frame_rate) - 1;
|
||||
|
||||
put_le16(pb, jiffies);
|
||||
|
||||
put_byte(pb, 0x1f); /* transparent color index */
|
||||
put_byte(pb, 0x00);
|
||||
|
||||
/* image block */
|
||||
|
||||
put_byte(pb, 0x2c);
|
||||
put_le16(pb, 0);
|
||||
put_le16(pb, 0);
|
||||
put_le16(pb, enc->width);
|
||||
put_le16(pb, enc->height);
|
||||
put_byte(pb, 0x00); /* flags */
|
||||
/* no local clut */
|
||||
|
||||
put_byte(pb, 0x08);
|
||||
|
||||
left=size/3;
|
||||
|
||||
/* XXX:deprecated */
|
||||
/*init_put_bits_rev(&p, buffer, sizeof(buf), (void *)pb, gif_put_chunk); *//* mmm found a but in my code: s/sizeof(buf)/150/ */
|
||||
|
||||
init_put_bits_rev(&p, buffer, 130, NULL, NULL);
|
||||
|
||||
/*
|
||||
* the thing here is the bitstream is written as little packets, with a size byte before
|
||||
* but it's still the same bitstream between packets (no flush !)
|
||||
*/
|
||||
|
||||
while(left>0) {
|
||||
|
||||
put_bits_rev(&p, 9, 0x0100); /* clear code */
|
||||
|
||||
for(i=0;i<GIF_CHUNKS;i++) {
|
||||
put_bits_rev(&p, 9, gif_clut_index(NULL, *buf, buf[1], buf[2]));
|
||||
buf+=3;
|
||||
}
|
||||
|
||||
if(left<=GIF_CHUNKS) {
|
||||
put_bits_rev(&p, 9, 0x101); /* end of stream */
|
||||
flush_put_bits_rev(&p);
|
||||
}
|
||||
if(pbBufPtr(&p) - p.buf > 0) {
|
||||
put_byte(pb, pbBufPtr(&p) - p.buf); /* byte count of the packet */
|
||||
put_buffer(pb, p.buf, pbBufPtr(&p) - p.buf); /* the actual buffer */
|
||||
p.data_out_size += pbBufPtr(&p) - p.buf;
|
||||
p.buf_ptr = p.buf; /* dequeue the bytes off the bitstream */
|
||||
}
|
||||
if(left<=GIF_CHUNKS) {
|
||||
put_byte(pb, 0x00); /* end of image block */
|
||||
}
|
||||
|
||||
left-=GIF_CHUNKS;
|
||||
}
|
||||
|
||||
put_flush_packet(&s->pb);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int gif_write_packet(AVFormatContext *s, int stream_index,
|
||||
UINT8 *buf, int size)
|
||||
{
|
||||
AVCodecContext *codec = &s->streams[stream_index]->codec;
|
||||
if (codec->codec_type == CODEC_TYPE_AUDIO)
|
||||
return 0; /* just ignore audio */
|
||||
else
|
||||
return gif_write_video(s, codec, buf, size);
|
||||
}
|
||||
|
||||
static int gif_write_trailer(AVFormatContext *s)
|
||||
{
|
||||
GIFContext *gif = s->priv_data;
|
||||
ByteIOContext *pb = &s->pb;
|
||||
|
||||
put_byte(pb, 0x3b);
|
||||
put_flush_packet(&s->pb);
|
||||
|
||||
free(gif);
|
||||
return 0;
|
||||
}
|
||||
|
||||
AVFormat gif_format = {
|
||||
"gif",
|
||||
"GIF Animation",
|
||||
"image/gif",
|
||||
"gif",
|
||||
CODEC_ID_NONE,
|
||||
CODEC_ID_RAWVIDEO,
|
||||
gif_write_header,
|
||||
gif_write_packet,
|
||||
gif_write_trailer,
|
||||
|
||||
NULL, /* read_header */
|
||||
NULL, /* read_packet */
|
||||
NULL, /* read_close */
|
||||
};
|
||||
|
||||
960
libav/mov.c
Normal file
960
libav/mov.c
Normal file
|
|
@ -0,0 +1,960 @@
|
|||
/*
|
||||
* MOV decoder.
|
||||
* Copyright (c) 2001 Gerard Lantau.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
#include "avformat.h"
|
||||
#include "avi.h"
|
||||
|
||||
/*
|
||||
* First version by Francois Revol revol@free.fr
|
||||
*
|
||||
* Features and limitations:
|
||||
* - reads most of the QT files I have (at least the structure),
|
||||
* the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
|
||||
* - ffmpeg has nearly none of the usual QuickTime codecs,
|
||||
* although I succesfully dumped raw and mp3 audio tracks off .mov files.
|
||||
* Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
|
||||
* - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
|
||||
* (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
|
||||
* http://mpeg.telecomitalialab.com/faq.htm
|
||||
* - the code is quite ugly... maybe I won't do it recursive next time :-)
|
||||
*
|
||||
* Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
|
||||
* when coding this :) (it's a writer anyway)
|
||||
*
|
||||
* Reference documents:
|
||||
* http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
|
||||
* Apple:
|
||||
* http://developer.apple.com/techpubs/quicktime/qtdevdocs/QTFF/qtff.html
|
||||
* http://developer.apple.com/techpubs/quicktime/qtdevdocs/PDF/QTFileFormat.pdf
|
||||
* QuickTime is a trademark of Apple (AFAIK :))
|
||||
*/
|
||||
|
||||
#define DEBUG
|
||||
|
||||
#ifdef DEBUG
|
||||
/*
|
||||
* XXX: static sux, even more in a multithreaded environment...
|
||||
* Avoid them. This is here just to help debugging.
|
||||
*/
|
||||
static int debug_indent = 0;
|
||||
void print_atom(const char *str, UINT32 type, UINT64 offset, UINT64 size)
|
||||
{
|
||||
unsigned int tag, i;
|
||||
tag = (unsigned int) type;
|
||||
i=debug_indent;
|
||||
if(tag == 0) tag = MKTAG('N', 'U', 'L', 'L');
|
||||
while(i--)
|
||||
printf("|");
|
||||
printf("parse:");
|
||||
printf(" %s: tag=%c%c%c%c offset=%d size=0x%x\n",
|
||||
str, tag & 0xff,
|
||||
(tag >> 8) & 0xff,
|
||||
(tag >> 16) & 0xff,
|
||||
(tag >> 24) & 0xff,
|
||||
(unsigned int)offset,
|
||||
(unsigned int)size);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* some streams in QT (and in MP4 mostly) aren't either video nor audio */
|
||||
/* so we first list them as this, then clean up the list of streams we give back, */
|
||||
/* getting rid of these */
|
||||
#define CODEC_TYPE_MOV_OTHER 2
|
||||
|
||||
CodecTag mov_video_tags[] = {
|
||||
/* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
|
||||
/* { CODEC_ID_JPEG, MKTAG('j', 'p', 'e', 'g') }, *//* JPEG */
|
||||
{ CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
|
||||
{ CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, /* Uncompressed YUV422 */
|
||||
/* Graphics */
|
||||
/* Animation */
|
||||
/* Apple video */
|
||||
/* Kodak Photo CD */
|
||||
/* { CODEC_ID_JPEG, MKTAG('j', 'p', 'e', 'g') }, *//* JPEG ? */
|
||||
{ CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
|
||||
{ CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format A) */
|
||||
{ CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
|
||||
/* { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, *//* embedded gif files as frames (usually one "click to play movie" frame) */
|
||||
/* Sorenson video */
|
||||
{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, /* OpenDiVX *//* yeah ! */
|
||||
{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
|
||||
/* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
|
||||
{ 0, 0 },
|
||||
};
|
||||
|
||||
CodecTag mov_audio_tags[] = {
|
||||
/* { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, *//* uncompressed */
|
||||
{ CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
|
||||
{ CODEC_ID_PCM_S8, MKTAG('t', 'w', 'o', 's') }, /* 8 bits */
|
||||
{ CODEC_ID_PCM_U8, 0x20776172 }, /* 8 bits unsigned */
|
||||
{ CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */
|
||||
{ CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */
|
||||
{ CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */
|
||||
/* { CODEC_ID_, MKTAG('i', 'm', 'a', '4') }, *//* IMA-4 */
|
||||
|
||||
{ CODEC_ID_MP2, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
|
||||
{ CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
|
||||
{ CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
|
||||
/* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
|
||||
/* MP4 tags */
|
||||
/* { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, *//* MPEG 4 AAC or audio ? */
|
||||
/* The standard for mpeg4 audio is still not normalised AFAIK anyway */
|
||||
{ 0, 0 },
|
||||
};
|
||||
|
||||
/* the QuickTime file format is quite convoluted...
|
||||
* it has lots of index tables, each indexing something in another one...
|
||||
* Here we just use what is needed to read the chunks
|
||||
*/
|
||||
|
||||
typedef struct MOV_sample_to_chunk_tbl {
|
||||
long first;
|
||||
long count;
|
||||
long id;
|
||||
} MOV_sample_to_chunk_tbl;
|
||||
|
||||
typedef struct MOVStreamContext {
|
||||
int ffindex; /* the ffmpeg stream id */
|
||||
int is_ff_stream; /* Is this stream presented to ffmpeg ? i.e. is this an audio or video stream ? */
|
||||
long next_chunk;
|
||||
long chunk_count;
|
||||
INT64 *chunk_offsets;
|
||||
long sample_to_chunk_sz;
|
||||
MOV_sample_to_chunk_tbl *sample_to_chunk;
|
||||
long sample_size;
|
||||
long sample_count;
|
||||
long *sample_sizes;
|
||||
} MOVStreamContext;
|
||||
|
||||
typedef struct MOVContext {
|
||||
int mp4; /* set to 1 as soon as we are sure that the file is an .mp4 file (even some header parsing depends on this) */
|
||||
AVFormatContext *fc;
|
||||
long time_scale;
|
||||
int found_moov; /* when both 'moov' and 'mdat' sections has been found */
|
||||
int found_mdat; /* we suppose we have enough data to read the file */
|
||||
INT64 mdat_size;
|
||||
INT64 mdat_offset;
|
||||
int total_streams;
|
||||
/* some streams listed here aren't presented to the ffmpeg API, since they aren't either video nor audio
|
||||
* but we need the info to be able to skip data from those streams in the 'mdat' section
|
||||
*/
|
||||
MOVStreamContext *streams[MAX_STREAMS];
|
||||
|
||||
INT64 next_chunk_offset;
|
||||
} MOVContext;
|
||||
|
||||
|
||||
struct MOVParseTableEntry;
|
||||
|
||||
/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
|
||||
|
||||
/* those functions parse an atom */
|
||||
/* return code:
|
||||
1: found what I wanted, exit
|
||||
0: continue to parse next atom
|
||||
-1: error occured, exit
|
||||
*/
|
||||
typedef int (*mov_parse_function)(struct MOVParseTableEntry *parse_table,
|
||||
ByteIOContext *pb,
|
||||
UINT32 atom_type,
|
||||
INT64 atom_offset, /* after the size and type field (and eventually the extended size) */
|
||||
INT64 atom_size, /* total size (excluding the size and type fields) */
|
||||
void *param);
|
||||
|
||||
/* links atom IDs to parse functions */
|
||||
typedef struct MOVParseTableEntry {
|
||||
UINT32 type;
|
||||
mov_parse_function func;
|
||||
} MOVParseTableEntry;
|
||||
|
||||
static int parse_leaf(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
#ifdef DEBUG
|
||||
print_atom("leaf", atom_type, atom_offset, atom_size);
|
||||
#endif
|
||||
if(atom_size>1)
|
||||
url_fskip(pb, atom_size);
|
||||
/* url_seek(pb, atom_offset+atom_size, SEEK_SET); */
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int parse_default(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
UINT32 type, foo=0;
|
||||
UINT64 offset, size;
|
||||
UINT64 total_size = 0;
|
||||
int i;
|
||||
int err = 0;
|
||||
foo=0;
|
||||
#ifdef DEBUG
|
||||
print_atom("default", atom_type, atom_offset, atom_size);
|
||||
debug_indent++;
|
||||
#endif
|
||||
|
||||
offset = atom_offset;
|
||||
|
||||
if(atom_size < 0)
|
||||
atom_size = 0x0FFFFFFFFFFFFFFF;
|
||||
while((total_size < atom_size) && !url_feof(pb) && !err) {
|
||||
size=atom_size;
|
||||
type=0L;
|
||||
if(atom_size >= 8) {
|
||||
size = get_be32(pb);
|
||||
type = get_le32(pb);
|
||||
}
|
||||
total_size += 8;
|
||||
offset+=8;
|
||||
// printf("type: %08lx sz: %08lx", type, size);
|
||||
if(size == 1) { /* 64 bit extended size */
|
||||
size = get_be64(pb);
|
||||
offset+=8;
|
||||
total_size+=8;
|
||||
size-=8;
|
||||
}
|
||||
if(size == 0)
|
||||
size = atom_size - total_size;
|
||||
size-=8;
|
||||
for(i=0; parse_table[i].type != 0L && parse_table[i].type != type; i++);
|
||||
|
||||
// printf(" i=%ld\n", i);
|
||||
if(parse_table[i].type == NULL) { /* skip leaf atoms data */
|
||||
// url_seek(pb, atom_offset+atom_size, SEEK_SET);
|
||||
#ifdef DEBUG
|
||||
print_atom("unknown", type, offset, size);
|
||||
#endif
|
||||
url_fskip(pb, size);
|
||||
} else
|
||||
err = (parse_table[i].func)(parse_table, pb, type, offset, size, param);
|
||||
|
||||
offset+=size;
|
||||
total_size+=size;
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
debug_indent--;
|
||||
#endif
|
||||
return err;
|
||||
}
|
||||
|
||||
static int parse_mvhd(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
MOVContext *c;
|
||||
#ifdef DEBUG
|
||||
print_atom("mvhd", atom_type, atom_offset, atom_size);
|
||||
#endif
|
||||
c = (MOVContext *)param;
|
||||
|
||||
get_byte(pb); /* version */
|
||||
get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
|
||||
|
||||
get_be32(pb); /* creation time */
|
||||
get_be32(pb); /* modification time */
|
||||
c->time_scale = get_be32(pb); /* time scale */
|
||||
get_be32(pb); /* duration */
|
||||
get_be32(pb); /* preferred scale */
|
||||
|
||||
get_be16(pb); /* preferred volume */
|
||||
|
||||
url_fskip(pb, 10); /* reserved */
|
||||
|
||||
url_fskip(pb, 36); /* display matrix */
|
||||
|
||||
get_be32(pb); /* preview time */
|
||||
get_be32(pb); /* preview duration */
|
||||
get_be32(pb); /* poster time */
|
||||
get_be32(pb); /* selection time */
|
||||
get_be32(pb); /* selection duration */
|
||||
get_be32(pb); /* current time */
|
||||
get_be32(pb); /* next track ID */
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* this atom should contain all header atoms */
|
||||
static int parse_moov(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
int err;
|
||||
MOVContext *c;
|
||||
#ifdef DEBUG
|
||||
print_atom("moov", atom_type, atom_offset, atom_size);
|
||||
#endif
|
||||
c = (MOVContext *)param;
|
||||
|
||||
err = parse_default(parse_table, pb, atom_type, atom_offset, atom_size, param);
|
||||
/* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
|
||||
/* so we don't parse the whole file if over a network */
|
||||
c->found_moov=1;
|
||||
if(c->found_mdat)
|
||||
return 1; /* found both, just go */
|
||||
return 0; /* now go for mdat */
|
||||
}
|
||||
|
||||
/* this atom contains actual media data */
|
||||
static int parse_mdat(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
int err;
|
||||
MOVContext *c;
|
||||
#ifdef DEBUG
|
||||
print_atom("mdat", atom_type, atom_offset, atom_size);
|
||||
#endif
|
||||
c = (MOVContext *)param;
|
||||
|
||||
if(atom_size == 0) /* wrong one (MP4) */
|
||||
return 0;
|
||||
c->found_mdat=1;
|
||||
c->mdat_offset = atom_offset;
|
||||
c->mdat_size = atom_size;
|
||||
if(c->found_moov)
|
||||
return 1; /* found both, just go */
|
||||
url_fskip(pb, atom_size);
|
||||
return 0; /* now go for moov */
|
||||
}
|
||||
|
||||
static int parse_trak(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
MOVContext *c;
|
||||
AVStream *st;
|
||||
MOVStreamContext *sc;
|
||||
#ifdef DEBUG
|
||||
print_atom("trak", atom_type, atom_offset, atom_size);
|
||||
#endif
|
||||
|
||||
c = (MOVContext *)param;
|
||||
st = malloc(sizeof(AVStream));
|
||||
if (!st) return -2;
|
||||
memset(st, 0, sizeof(AVStream));
|
||||
c->fc->streams[c->fc->nb_streams] = st;
|
||||
sc = malloc(sizeof(MOVStreamContext));
|
||||
st->priv_data = sc;
|
||||
st->codec.codec_type = CODEC_TYPE_MOV_OTHER;
|
||||
c->streams[c->fc->nb_streams++] = sc;
|
||||
return parse_default(parse_table, pb, atom_type, atom_offset, atom_size, param);
|
||||
}
|
||||
|
||||
static int parse_tkhd(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
MOVContext *c;
|
||||
AVStream *st;
|
||||
#ifdef DEBUG
|
||||
print_atom("tkhd", atom_type, atom_offset, atom_size);
|
||||
#endif
|
||||
|
||||
c = (MOVContext *)param;
|
||||
st = c->fc->streams[c->fc->nb_streams-1];
|
||||
|
||||
get_byte(pb); /* version */
|
||||
|
||||
get_byte(pb); get_byte(pb);
|
||||
get_byte(pb); /* flags */
|
||||
/*
|
||||
MOV_TRACK_ENABLED 0x0001
|
||||
MOV_TRACK_IN_MOVIE 0x0002
|
||||
MOV_TRACK_IN_PREVIEW 0x0004
|
||||
MOV_TRACK_IN_POSTER 0x0008
|
||||
*/
|
||||
|
||||
get_be32(pb); /* creation time */
|
||||
get_be32(pb); /* modification time */
|
||||
st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
|
||||
get_be32(pb); /* reserved */
|
||||
get_be32(pb); /* duration */
|
||||
get_be32(pb); /* reserved */
|
||||
get_be32(pb); /* reserved */
|
||||
|
||||
get_be16(pb); /* layer */
|
||||
get_be16(pb); /* alternate group */
|
||||
get_be16(pb); /* volume */
|
||||
get_be16(pb); /* reserved */
|
||||
|
||||
url_fskip(pb, 36); /* display matrix */
|
||||
|
||||
/* those are fixed-point */
|
||||
st->codec.width = get_be32(pb) >> 16; /* track width */
|
||||
st->codec.height = get_be32(pb) >> 16; /* track height */
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int parse_hdlr(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
MOVContext *c;
|
||||
int len;
|
||||
char *buf, ch;
|
||||
UINT32 type;
|
||||
AVStream *st;
|
||||
UINT32 ctype;
|
||||
#ifdef DEBUG
|
||||
print_atom("hdlr", atom_type, atom_offset, atom_size);
|
||||
#endif
|
||||
c = (MOVContext *)param;
|
||||
st = c->fc->streams[c->fc->nb_streams-1];
|
||||
|
||||
get_byte(pb); /* version */
|
||||
get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
|
||||
|
||||
/* component type */
|
||||
ctype = get_le32(pb);
|
||||
type = get_le32(pb); /* component subtype */
|
||||
|
||||
#ifdef DEBUG
|
||||
printf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], ctype);
|
||||
printf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
|
||||
#endif
|
||||
#ifdef DEBUG
|
||||
/* XXX: yeah this is ugly... */
|
||||
if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
|
||||
if(type == MKTAG('v', 'i', 'd', 'e'))
|
||||
puts("hdlr: vide");
|
||||
else if(type == MKTAG('s', 'o', 'u', 'n'))
|
||||
puts("hdlr: soun");
|
||||
} else if(ctype == 0) { /* MP4 */
|
||||
if(type == MKTAG('v', 'i', 'd', 'e'))
|
||||
puts("hdlr: vide");
|
||||
else if(type == MKTAG('s', 'o', 'u', 'n'))
|
||||
puts("hdlr: soun");
|
||||
else if(type == MKTAG('o', 'd', 's', 'm'))
|
||||
puts("hdlr: odsm");
|
||||
else if(type == MKTAG('s', 'd', 's', 'm'))
|
||||
puts("hdlr: sdsm");
|
||||
} else puts("hdlr: meta");
|
||||
#endif
|
||||
|
||||
if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
|
||||
if(type == MKTAG('v', 'i', 'd', 'e'))
|
||||
st->codec.codec_type = CODEC_TYPE_VIDEO;
|
||||
else if(type == MKTAG('s', 'o', 'u', 'n'))
|
||||
st->codec.codec_type = CODEC_TYPE_AUDIO;
|
||||
} else if(ctype == 0) { /* MP4 */
|
||||
if(type == MKTAG('v', 'i', 'd', 'e'))
|
||||
st->codec.codec_type = CODEC_TYPE_VIDEO;
|
||||
else if(type == MKTAG('s', 'o', 'u', 'n'))
|
||||
st->codec.codec_type = CODEC_TYPE_AUDIO;
|
||||
}
|
||||
get_be32(pb); /* component manufacture */
|
||||
get_be32(pb); /* component flags */
|
||||
get_be32(pb); /* component flags mask */
|
||||
|
||||
if(atom_size <= 24)
|
||||
return 0; /* nothing left to read */
|
||||
/* XXX: MP4 uses a C string, not a pascal one */
|
||||
/* component name */
|
||||
if(c->mp4) {
|
||||
#ifdef DEBUG
|
||||
puts("MP4!!!");
|
||||
#endif
|
||||
while(ch=get_byte(pb));
|
||||
} else {
|
||||
len = get_byte(pb);
|
||||
if(len) {
|
||||
buf = malloc(len+1);
|
||||
get_buffer(pb, buf, len);
|
||||
buf[len] = '\0';
|
||||
#ifdef DEBUG
|
||||
puts(buf);
|
||||
#endif
|
||||
free(buf);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int parse_stsd(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
MOVContext *c;
|
||||
int entries, size, samp_sz, frames_per_sample;
|
||||
char *buf;
|
||||
UINT32 format;
|
||||
AVStream *st;
|
||||
#ifdef DEBUG
|
||||
print_atom("stsd", atom_type, atom_offset, atom_size);
|
||||
#endif
|
||||
c = (MOVContext *)param;
|
||||
st = c->fc->streams[c->fc->nb_streams-1];
|
||||
|
||||
get_byte(pb); /* version */
|
||||
get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
|
||||
|
||||
|
||||
entries = get_be32(pb);
|
||||
|
||||
while(entries--) {
|
||||
size = get_be32(pb); /* size */
|
||||
format = get_le32(pb); /* data format */
|
||||
|
||||
get_be32(pb); /* reserved */
|
||||
get_be16(pb); /* reserved */
|
||||
get_be16(pb); /* index */
|
||||
/* if(format == MKTAG('m', 'p', '4', 'v')) */
|
||||
/* st->codec.codec_type=CODEC_TYPE_VIDEO; *//* force things (XXX: was this for .mp4 ?) */
|
||||
if(st->codec.codec_type==CODEC_TYPE_VIDEO) {
|
||||
st->codec.codec_tag = format;
|
||||
st->codec.codec_id = codec_get_id(mov_video_tags, format);
|
||||
get_be16(pb); /* version */
|
||||
get_be16(pb); /* revision level */
|
||||
get_be32(pb); /* vendor */
|
||||
get_be32(pb); /* temporal quality */
|
||||
get_be32(pb); /* spacial quality */
|
||||
st->codec.width = get_be16(pb); /* width */
|
||||
st->codec.height = get_be16(pb); /* height */
|
||||
get_be32(pb); /* horiz resolution */
|
||||
get_be32(pb); /* vert resolution */
|
||||
get_be32(pb); /* data size, always 0 */
|
||||
frames_per_sample = get_be16(pb); /* frame per samples */
|
||||
#ifdef DEBUG
|
||||
printf("frames/samples = %ld\n", frames_per_sample);
|
||||
#endif
|
||||
url_fskip(pb, 32); /* codec name */
|
||||
|
||||
get_be16(pb); /* depth */
|
||||
get_be16(pb); /* colortable id */
|
||||
get_be16(pb); /* */
|
||||
get_be16(pb); /* */
|
||||
|
||||
st->codec.sample_rate = 25 * FRAME_RATE_BASE;
|
||||
|
||||
if(size > 16)
|
||||
url_fskip(pb, size-(16+24+18+32));
|
||||
} else {
|
||||
st->codec.codec_tag = format;
|
||||
|
||||
get_be16(pb); /* version */
|
||||
get_be16(pb); /* revision level */
|
||||
get_be32(pb); /* vendor */
|
||||
|
||||
st->codec.channels = get_be16(pb);/* channel count */
|
||||
samp_sz = get_be16(pb); /* sample size */
|
||||
#ifdef DEBUG
|
||||
if(samp_sz != 16)
|
||||
puts("!!! stsd: audio sample size is not 16 bit !");
|
||||
#endif
|
||||
st->codec.codec_id = codec_get_id(mov_audio_tags, format);
|
||||
/* handle specific s8 codec */
|
||||
if (st->codec.codec_id == CODEC_ID_PCM_S16BE && samp_sz == 8)
|
||||
st->codec.codec_id = CODEC_ID_PCM_S8;
|
||||
|
||||
get_be16(pb); /* compression id = 0*/
|
||||
get_be16(pb); /* packet size = 0 */
|
||||
|
||||
st->codec.sample_rate = ((get_be32(pb) >> 16));
|
||||
st->codec.bit_rate = 0;
|
||||
|
||||
/* this is for .mp4 files */
|
||||
if(format == MKTAG('m', 'p', '4', 'v')) { /* XXX */
|
||||
st->codec.codec_type=CODEC_TYPE_VIDEO; /* force things */
|
||||
st->codec.codec_id = CODEC_ID_MPEG4;
|
||||
st->codec.frame_rate = 25;
|
||||
st->codec.bit_rate = 100000;
|
||||
}
|
||||
|
||||
#if 0
|
||||
|
||||
get_be16(pb); get_be16(pb); /* */
|
||||
get_be16(pb); /* */
|
||||
get_be16(pb); /* */
|
||||
get_be16(pb); /* */
|
||||
get_be16(pb); /* */
|
||||
#endif
|
||||
if(size > 16)
|
||||
url_fskip(pb, size-(16+20));
|
||||
}
|
||||
#ifdef DEBUG
|
||||
printf("4CC= %c%c%c%c\n", *((char *)&format), ((char *)&format)[1], ((char *)&format)[2], ((char *)&format)[3]);
|
||||
#endif
|
||||
}
|
||||
/*
|
||||
if(len) {
|
||||
buf = malloc(len+1);
|
||||
get_buffer(pb, buf, len);
|
||||
buf[len] = '\0';
|
||||
puts(buf);
|
||||
free(buf);
|
||||
}
|
||||
*/
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int parse_stco(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
MOVContext *c;
|
||||
int entries, i;
|
||||
AVStream *st;
|
||||
MOVStreamContext *sc;
|
||||
#ifdef DEBUG
|
||||
print_atom("stco", atom_type, atom_offset, atom_size);
|
||||
#endif
|
||||
c = (MOVContext *)param;
|
||||
st = c->fc->streams[c->fc->nb_streams-1];
|
||||
sc = (MOVStreamContext *)st->priv_data;
|
||||
|
||||
get_byte(pb); /* version */
|
||||
get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
|
||||
|
||||
entries = get_be32(pb);
|
||||
sc->chunk_count = entries;
|
||||
sc->chunk_offsets = malloc(entries * sizeof(INT64));
|
||||
if(atom_type == MKTAG('s', 't', 'c', 'o')) {
|
||||
for(i=0; i<entries; i++) {
|
||||
sc->chunk_offsets[i] = get_be32(pb);
|
||||
/*printf("chunk offset=%ld\n", sc->chunk_offsets[i]);*/
|
||||
}
|
||||
} else if(atom_type == MKTAG('c', 'o', '6', '4')) {
|
||||
for(i=0; i<entries; i++) {
|
||||
sc->chunk_offsets[i] = get_be64(pb);
|
||||
/*printf("chunk offset=%ld\n", sc->chunk_offsets[i]);*/
|
||||
}
|
||||
} else
|
||||
return -1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int parse_stsc(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
MOVContext *c;
|
||||
int entries, i;
|
||||
AVStream *st;
|
||||
MOVStreamContext *sc;
|
||||
#ifdef DEBUG
|
||||
print_atom("stsc", atom_type, atom_offset, atom_size);
|
||||
#endif
|
||||
c = (MOVContext *)param;
|
||||
st = c->fc->streams[c->fc->nb_streams-1];
|
||||
sc = (MOVStreamContext *)st->priv_data;
|
||||
|
||||
get_byte(pb); /* version */
|
||||
get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
|
||||
|
||||
entries = get_be32(pb);
|
||||
sc->sample_to_chunk_sz = entries;
|
||||
sc->sample_to_chunk = malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
|
||||
for(i=0; i<entries; i++) {
|
||||
sc->sample_to_chunk[i].first = get_be32(pb);
|
||||
sc->sample_to_chunk[i].count = get_be32(pb);
|
||||
sc->sample_to_chunk[i].id = get_be32(pb);
|
||||
#ifdef DEBUG
|
||||
/* printf("sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id); */
|
||||
#endif
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int parse_stsz(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
|
||||
{
|
||||
MOVContext *c;
|
||||
int entries, i;
|
||||
AVStream *st;
|
||||
MOVStreamContext *sc;
|
||||
#ifdef DEBUG
|
||||
print_atom("stsz", atom_type, atom_offset, atom_size);
|
||||
#endif
|
||||
c = (MOVContext *)param;
|
||||
st = c->fc->streams[c->fc->nb_streams-1];
|
||||
sc = (MOVStreamContext *)st->priv_data;
|
||||
|
||||
get_byte(pb); /* version */
|
||||
get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
|
||||
|
||||
sc->sample_size = get_be32(pb);
|
||||
entries = get_be32(pb);
|
||||
sc->sample_count = entries;
|
||||
printf("sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
|
||||
if(sc->sample_size)
|
||||
return 0; /* there isn't any table following */
|
||||
sc->sample_sizes = malloc(entries * sizeof(long));
|
||||
for(i=0; i<entries; i++) {
|
||||
sc->sample_sizes[i] = get_be32(pb);
|
||||
#ifdef DEBUG
|
||||
/* printf("sample_sizes[]=%ld\n", sc->sample_sizes[i]); */
|
||||
#endif
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const MOVParseTableEntry mov_default_parse_table[] = {
|
||||
/* mp4 atoms */
|
||||
{ MKTAG( 'm', 'p', '4', 'a' ), parse_default },
|
||||
{ MKTAG( 'c', 'o', '6', '4' ), parse_stco },
|
||||
{ MKTAG( 's', 't', 'c', 'o' ), parse_stco },
|
||||
{ MKTAG( 'c', 'r', 'h', 'd' ), parse_default },
|
||||
{ MKTAG( 'c', 't', 't', 's' ), parse_leaf },
|
||||
{ MKTAG( 'c', 'p', 'r', 't' ), parse_default },
|
||||
{ MKTAG( 'u', 'r', 'l', ' ' ), parse_leaf },
|
||||
{ MKTAG( 'u', 'r', 'n', ' ' ), parse_leaf },
|
||||
{ MKTAG( 'd', 'i', 'n', 'f' ), parse_default },
|
||||
{ MKTAG( 'd', 'r', 'e', 'f' ), parse_leaf },
|
||||
{ MKTAG( 's', 't', 'd', 'p' ), parse_default },
|
||||
{ MKTAG( 'e', 's', 'd', 's' ), parse_default },
|
||||
{ MKTAG( 'e', 'd', 't', 's' ), parse_default },
|
||||
{ MKTAG( 'e', 'l', 's', 't' ), parse_leaf },
|
||||
{ MKTAG( 'u', 'u', 'i', 'd' ), parse_default },
|
||||
{ MKTAG( 'f', 'r', 'e', 'e' ), parse_leaf },
|
||||
{ MKTAG( 'h', 'd', 'l', 'r' ), parse_hdlr },
|
||||
{ MKTAG( 'h', 'm', 'h', 'd' ), parse_default },
|
||||
{ MKTAG( 'h', 'i', 'n', 't' ), parse_leaf },
|
||||
{ MKTAG( 'n', 'm', 'h', 'd' ), parse_leaf },
|
||||
{ MKTAG( 'm', 'p', '4', 's' ), parse_default },
|
||||
{ MKTAG( 'm', 'd', 'i', 'a' ), parse_default },
|
||||
{ MKTAG( 'm', 'd', 'a', 't' ), parse_mdat },
|
||||
{ MKTAG( 'm', 'd', 'h', 'd' ), parse_leaf },
|
||||
{ MKTAG( 'm', 'i', 'n', 'f' ), parse_default },
|
||||
{ MKTAG( 'm', 'o', 'o', 'v' ), parse_moov },
|
||||
{ MKTAG( 'm', 'v', 'h', 'd' ), parse_mvhd },
|
||||
{ MKTAG( 'i', 'o', 'd', 's' ), parse_leaf },
|
||||
{ MKTAG( 'o', 'd', 'h', 'd' ), parse_default },
|
||||
{ MKTAG( 'm', 'p', 'o', 'd' ), parse_leaf },
|
||||
{ MKTAG( 's', 't', 's', 'd' ), parse_stsd },
|
||||
{ MKTAG( 's', 't', 's', 'z' ), parse_stsz },
|
||||
{ MKTAG( 's', 't', 'b', 'l' ), parse_default },
|
||||
{ MKTAG( 's', 't', 's', 'c' ), parse_stsc },
|
||||
{ MKTAG( 's', 'd', 'h', 'd' ), parse_default },
|
||||
{ MKTAG( 's', 't', 's', 'h' ), parse_default },
|
||||
{ MKTAG( 's', 'k', 'i', 'p' ), parse_default },
|
||||
{ MKTAG( 's', 'm', 'h', 'd' ), parse_leaf },
|
||||
{ MKTAG( 'd', 'p', 'n', 'd' ), parse_leaf },
|
||||
{ MKTAG( 's', 't', 's', 's' ), parse_leaf },
|
||||
{ MKTAG( 's', 't', 't', 's' ), parse_leaf },
|
||||
{ MKTAG( 't', 'r', 'a', 'k' ), parse_trak },
|
||||
{ MKTAG( 't', 'k', 'h', 'd' ), parse_tkhd },
|
||||
{ MKTAG( 't', 'r', 'e', 'f' ), parse_default }, /* not really */
|
||||
{ MKTAG( 'u', 'd', 't', 'a' ), parse_leaf },
|
||||
{ MKTAG( 'v', 'm', 'h', 'd' ), parse_leaf },
|
||||
{ MKTAG( 'm', 'p', '4', 'v' ), parse_default },
|
||||
/* extra mp4 */
|
||||
{ MKTAG( 'M', 'D', 'E', 'S' ), parse_leaf },
|
||||
/* QT atoms */
|
||||
{ MKTAG( 'c', 'h', 'a', 'p' ), parse_leaf },
|
||||
{ MKTAG( 'c', 'l', 'i', 'p' ), parse_default },
|
||||
{ MKTAG( 'c', 'r', 'g', 'n' ), parse_leaf },
|
||||
{ MKTAG( 'k', 'm', 'a', 't' ), parse_leaf },
|
||||
{ MKTAG( 'm', 'a', 't', 't' ), parse_default },
|
||||
{ MKTAG( 'r', 'd', 'r', 'f' ), parse_leaf },
|
||||
{ MKTAG( 'r', 'm', 'd', 'a' ), parse_default },
|
||||
{ MKTAG( 'r', 'm', 'd', 'r' ), parse_leaf },
|
||||
//{ MKTAG( 'r', 'm', 'q', 'u' ), parse_leaf },
|
||||
{ MKTAG( 'r', 'm', 'r', 'a' ), parse_default },
|
||||
{ MKTAG( 's', 'c', 'p', 't' ), parse_leaf },
|
||||
{ MKTAG( 's', 'y', 'n', 'c' ), parse_leaf },
|
||||
{ MKTAG( 's', 's', 'r', 'c' ), parse_leaf },
|
||||
{ MKTAG( 't', 'c', 'm', 'd' ), parse_leaf },
|
||||
{ MKTAG( 'w', 'i', 'd', 'e' ), parse_leaf }, /* place holder */
|
||||
{ 0L, parse_leaf }
|
||||
};
|
||||
|
||||
static void mov_free_stream_context(MOVStreamContext *sc)
|
||||
{
|
||||
if(sc) {
|
||||
if(sc->chunk_offsets)
|
||||
free(sc->chunk_offsets);
|
||||
if(sc->sample_to_chunk)
|
||||
free(sc->sample_to_chunk);
|
||||
free(sc);
|
||||
}
|
||||
}
|
||||
|
||||
int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
|
||||
{
|
||||
MOVContext *mov;
|
||||
ByteIOContext *pb = &s->pb;
|
||||
UINT32 tag, tag1;
|
||||
int i, j, nb, bps, err;
|
||||
INT64 size;
|
||||
AVStream *st;
|
||||
|
||||
mov = malloc(sizeof(MOVContext));
|
||||
if (!mov)
|
||||
return -1;
|
||||
memset(mov, 0, sizeof(MOVContext));
|
||||
s->priv_data = mov;
|
||||
|
||||
mov->fc = s;
|
||||
if(s->format->name[1] == 'p')
|
||||
mov->mp4 = 1;
|
||||
if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
|
||||
size = url_filesize(url_fileno(pb));
|
||||
else
|
||||
size = 0x7FFFFFFFFFFFFFFF;
|
||||
|
||||
#ifdef DEBUG
|
||||
printf("filesz=%ld\n", size);
|
||||
#endif
|
||||
|
||||
/* check MOV header */
|
||||
err = parse_default(mov_default_parse_table, pb, 0L, 0LL, size, mov);
|
||||
if(err<0 || (!mov->found_moov || !mov->found_mdat)) {
|
||||
puts("header not found !!!");
|
||||
exit(1);
|
||||
}
|
||||
#ifdef DEBUG
|
||||
printf("on_parse_exit_offset=%ld\n", url_ftell(pb));
|
||||
#endif
|
||||
/* some cleanup : make sure we are on the mdat atom */
|
||||
if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
|
||||
url_fseek(pb, mov->mdat_offset, SEEK_SET);
|
||||
|
||||
mov->next_chunk_offset = mov->mdat_offset; /* initialise reading */
|
||||
|
||||
#ifdef DEBUG
|
||||
printf("mdat_reset_offset=%ld\n", url_ftell(pb));
|
||||
#endif
|
||||
|
||||
#ifdef DEBUG
|
||||
printf("streams= %ld\n", s->nb_streams);
|
||||
#endif
|
||||
mov->total_streams = nb = s->nb_streams;
|
||||
|
||||
#if 1
|
||||
for(i=0; i<s->nb_streams;) {
|
||||
if(s->streams[i]->codec.codec_type == CODEC_TYPE_MOV_OTHER) {/* not audio, not video, delete */
|
||||
free(s->streams[i]);
|
||||
for(j=i+1; j<s->nb_streams; j++)
|
||||
s->streams[j-1] = s->streams[j];
|
||||
s->nb_streams--;
|
||||
} else
|
||||
i++;
|
||||
}
|
||||
for(i=0; i<s->nb_streams;i++) {
|
||||
MOVStreamContext *sc;
|
||||
sc = (MOVStreamContext *)s->streams[i]->priv_data;
|
||||
sc->ffindex = i;
|
||||
sc->is_ff_stream = 1;
|
||||
}
|
||||
#endif
|
||||
#ifdef DEBUG
|
||||
printf("real streams= %ld\n", s->nb_streams);
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Yes, this is ugly... I didn't write the specs of QT :p */
|
||||
/* XXX:remove useless commented code sometime */
|
||||
int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
|
||||
{
|
||||
MOVContext *mov = s->priv_data;
|
||||
INT64 offset = 0x0FFFFFFFFFFFFFFF;
|
||||
int i, j;
|
||||
int st_id = 0, size;
|
||||
size = 0x0FFFFFFF;
|
||||
|
||||
again:
|
||||
for(i=0; i<mov->total_streams; i++) {
|
||||
/* printf("%8ld ", mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk]); */
|
||||
if((mov->streams[i]->next_chunk < mov->streams[i]->chunk_count)
|
||||
&& (mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] < offset)) {
|
||||
/* printf("y"); */
|
||||
st_id = i;
|
||||
offset = mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk];
|
||||
}
|
||||
/* else printf("n"); */
|
||||
}
|
||||
mov->streams[st_id]->next_chunk++;
|
||||
if(offset==0x0FFFFFFFFFFFFFFF)
|
||||
return -1;
|
||||
|
||||
if(mov->next_chunk_offset < offset) /* some meta data */
|
||||
url_fskip(&s->pb, (offset - mov->next_chunk_offset));
|
||||
if(!mov->streams[st_id]->is_ff_stream) {
|
||||
url_fskip(&s->pb, (offset - mov->next_chunk_offset));
|
||||
offset = 0x0FFFFFFFFFFFFFFF;
|
||||
/* puts("*"); */
|
||||
goto again;
|
||||
}
|
||||
/* printf("\nchunk offset = %ld\n", offset); */
|
||||
|
||||
/* now get the chunk size... */
|
||||
|
||||
for(i=0; i<mov->total_streams; i++) {
|
||||
/* printf("%ld ", mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] - offset); */
|
||||
if((mov->streams[i]->next_chunk < mov->streams[i]->chunk_count)
|
||||
&& ((mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] - offset) < size)) {
|
||||
/* printf("y"); */
|
||||
size = mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] - offset;
|
||||
}
|
||||
/* else printf("n"); */
|
||||
}
|
||||
/* printf("\nchunk size = %ld\n", size); */
|
||||
if(size == 0x0FFFFFFF)
|
||||
size = mov->mdat_size + mov->mdat_offset - offset;
|
||||
if(size < 0)
|
||||
return -1;
|
||||
if(size == 0)
|
||||
return -1;
|
||||
av_new_packet(pkt, size);
|
||||
pkt->stream_index = mov->streams[st_id]->ffindex;
|
||||
|
||||
get_buffer(&s->pb, pkt->data, pkt->size);
|
||||
|
||||
#ifdef DEBUG
|
||||
/*
|
||||
printf("Packet (%d, %d, %ld) ", pkt->stream_index, st_id, pkt->size);
|
||||
for(i=0; i<8; i++)
|
||||
printf("%02x ", pkt->data[i]);
|
||||
for(i=0; i<8; i++)
|
||||
printf("%c ", (pkt->data[i]) & 0x7F);
|
||||
puts("");
|
||||
*/
|
||||
#endif
|
||||
|
||||
mov->next_chunk_offset = offset + size;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int mov_read_close(AVFormatContext *s)
|
||||
{
|
||||
int i;
|
||||
MOVContext *mov = s->priv_data;
|
||||
for(i=0; i<mov->total_streams; i++)
|
||||
mov_free_stream_context(mov->streams[i]);
|
||||
for(i=0; i<s->nb_streams; i++)
|
||||
free(s->streams[i]);
|
||||
free(mov);
|
||||
return 0;
|
||||
}
|
||||
|
||||
AVFormat mov_format = {
|
||||
"mov",
|
||||
"QuickTime format",
|
||||
"video/quicktime",
|
||||
"mov",
|
||||
CODEC_ID_MP2,
|
||||
CODEC_ID_MJPEG,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
|
||||
mov_read_header,
|
||||
mov_read_packet,
|
||||
mov_read_close,
|
||||
};
|
||||
|
||||
AVFormat mp4_format = {
|
||||
"mp4",
|
||||
"MPEG4 file format",
|
||||
"video/mpeg4",
|
||||
"mp4",
|
||||
CODEC_ID_MP2,
|
||||
CODEC_ID_MJPEG,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
|
||||
mov_read_header,
|
||||
mov_read_packet,
|
||||
mov_read_close,
|
||||
};
|
||||
|
|
@ -138,10 +138,14 @@ void register_all(void)
|
|||
register_avformat(&rm_format);
|
||||
register_avformat(&asf_format);
|
||||
register_avformat(&avi_format);
|
||||
register_avformat(&mov_format);
|
||||
register_avformat(&mp4_format);
|
||||
register_avformat(&mpjpeg_format);
|
||||
register_avformat(&jpeg_format);
|
||||
register_avformat(&single_jpeg_format);
|
||||
register_avformat(&swf_format);
|
||||
register_avformat(&gif_format);
|
||||
register_avformat(&au_format);
|
||||
register_avformat(&wav_format);
|
||||
register_avformat(&pcm_s16le_format);
|
||||
register_avformat(&pcm_s16be_format);
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user