mirror of https://github.com/mpv-player/mpv
732 lines
24 KiB
C
732 lines
24 KiB
C
/*
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Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
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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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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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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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// #include <stdio.h>
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#include <stdlib.h>
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// #include <unistd.h>
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#include <limits.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "help_mp.h"
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#include "stream/stream.h"
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#include "demuxer.h"
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#include "stheader.h"
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#include "m_option.h"
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#include "libvo/sub.h"
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#ifdef USE_LIBAVFORMAT_SO
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#include <ffmpeg/avformat.h>
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#include <ffmpeg/avutil.h>
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#include <ffmpeg/opt.h>
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#else
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#include "avformat.h"
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#include "avutil.h"
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#include "avi.h"
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#include "opt.h"
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#endif
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#include "riff.h"
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#define PROBE_BUF_SIZE 2048
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extern char *audio_lang;
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static unsigned int opt_probesize = 0;
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static unsigned int opt_analyzeduration = 0;
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static char *opt_format;
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static char *opt_cryptokey;
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m_option_t lavfdopts_conf[] = {
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{"probesize", &(opt_probesize), CONF_TYPE_INT, CONF_RANGE, 32, INT_MAX, NULL},
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{"format", &(opt_format), CONF_TYPE_STRING, 0, 0, 0, NULL},
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{"analyzeduration", &(opt_analyzeduration), CONF_TYPE_INT, CONF_RANGE, 0, INT_MAX, NULL},
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{"cryptokey", &(opt_cryptokey), CONF_TYPE_STRING, 0, 0, 0, NULL},
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{NULL, NULL, 0, 0, 0, 0, NULL}
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};
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typedef struct lavf_priv_t{
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AVInputFormat *avif;
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AVFormatContext *avfc;
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ByteIOContext pb;
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int audio_streams;
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int video_streams;
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int sub_streams;
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int64_t last_pts;
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int astreams[MAX_A_STREAMS];
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int vstreams[MAX_V_STREAMS];
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int sstreams[MAX_S_STREAMS];
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}lavf_priv_t;
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extern void print_wave_header(WAVEFORMATEX *h, int verbose_level);
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extern void print_video_header(BITMAPINFOHEADER *h, int verbose_level);
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static const AVCodecTag mp_wav_tags[] = {
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{ CODEC_ID_ADPCM_4XM, MKTAG('4', 'X', 'M', 'A')},
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{ CODEC_ID_ADPCM_EA, MKTAG('A', 'D', 'E', 'A')},
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{ CODEC_ID_ADPCM_IMA_WS, MKTAG('A', 'I', 'W', 'S')},
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{ CODEC_ID_ADPCM_THP, MKTAG('T', 'H', 'P', 'A')},
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{ CODEC_ID_AMR_NB, MKTAG('n', 'b', 0, 0)},
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{ CODEC_ID_COOK, MKTAG('c', 'o', 'o', 'k')},
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{ CODEC_ID_DSICINAUDIO, MKTAG('D', 'C', 'I', 'A')},
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{ CODEC_ID_INTERPLAY_DPCM, MKTAG('I', 'N', 'P', 'A')},
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{ CODEC_ID_MUSEPACK7, MKTAG('M', 'P', 'C', ' ')},
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{ CODEC_ID_NELLYMOSER, MKTAG('N', 'E', 'L', 'L')},
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{ CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4')},
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{ CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's')},
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{ CODEC_ID_PCM_S8, MKTAG('t', 'w', 'o', 's')},
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{ CODEC_ID_ROQ_DPCM, MKTAG('R', 'o', 'Q', 'A')},
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{ CODEC_ID_SHORTEN, MKTAG('s', 'h', 'r', 'n')},
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{ CODEC_ID_TTA, MKTAG('T', 'T', 'A', '1')},
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{ CODEC_ID_WAVPACK, MKTAG('W', 'V', 'P', 'K')},
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{ CODEC_ID_WESTWOOD_SND1, MKTAG('S', 'N', 'D', '1')},
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{ CODEC_ID_XAN_DPCM, MKTAG('A', 'x', 'a', 'n')},
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{ 0, 0 },
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};
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const struct AVCodecTag *mp_wav_taglists[] = {codec_wav_tags, mp_wav_tags, 0};
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static const AVCodecTag mp_bmp_tags[] = {
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{ CODEC_ID_AMV, MKTAG('A', 'M', 'V', 'V')},
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{ CODEC_ID_BETHSOFTVID, MKTAG('B', 'E', 'T', 'H')},
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{ CODEC_ID_C93, MKTAG('C', '9', '3', 'V')},
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{ CODEC_ID_DSICINVIDEO, MKTAG('D', 'C', 'I', 'V')},
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{ CODEC_ID_DXA, MKTAG('D', 'X', 'A', '1')},
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{ CODEC_ID_FLIC, MKTAG('F', 'L', 'I', 'C')},
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{ CODEC_ID_IDCIN, MKTAG('I', 'D', 'C', 'I')},
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{ CODEC_ID_INTERPLAY_VIDEO, MKTAG('I', 'N', 'P', 'V')},
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{ CODEC_ID_ROQ, MKTAG('R', 'o', 'Q', 'V')},
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{ CODEC_ID_THP, MKTAG('T', 'H', 'P', 'V')},
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{ CODEC_ID_TIERTEXSEQVIDEO, MKTAG('T', 'S', 'E', 'Q')},
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{ CODEC_ID_TXD, MKTAG('T', 'X', 'D', 'V')},
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{ CODEC_ID_VMDVIDEO, MKTAG('V', 'M', 'D', 'V')},
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{ CODEC_ID_WS_VQA, MKTAG('V', 'Q', 'A', 'V')},
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{ CODEC_ID_XAN_WC3, MKTAG('W', 'C', '3', 'V')},
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{ CODEC_ID_NUV, MKTAG('N', 'U', 'V', '1')},
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{ 0, 0 },
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};
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const struct AVCodecTag *mp_bmp_taglists[] = {codec_bmp_tags, mp_bmp_tags, 0};
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static int mp_open(URLContext *h, const char *filename, int flags){
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return 0;
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}
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static int mp_read(URLContext *h, unsigned char *buf, int size){
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stream_t *stream = (stream_t*)h->priv_data;
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int ret;
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if(stream_eof(stream)) //needed?
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return -1;
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ret=stream_read(stream, buf, size);
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mp_msg(MSGT_HEADER,MSGL_DBG2,"%d=mp_read(%p, %p, %d), eof:%d\n", ret, h, buf, size, stream->eof);
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return ret;
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}
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static int mp_write(URLContext *h, unsigned char *buf, int size){
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return -1;
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}
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static offset_t mp_seek(URLContext *h, offset_t pos, int whence){
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stream_t *stream = (stream_t*)h->priv_data;
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mp_msg(MSGT_HEADER,MSGL_DBG2,"mp_seek(%p, %d, %d)\n", h, (int)pos, whence);
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if(whence == SEEK_CUR)
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pos +=stream_tell(stream);
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else if(whence == SEEK_END && stream->end_pos > 0)
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pos += stream->end_pos;
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else if(whence == SEEK_SET)
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pos += stream->start_pos;
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else if(whence == AVSEEK_SIZE && stream->end_pos > 0)
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return stream->end_pos - stream->start_pos;
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else
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return -1;
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if(pos<0)
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return -1;
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if(pos<stream->end_pos && stream->eof)
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stream_reset(stream);
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if(stream_seek(stream, pos)==0)
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return -1;
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return pos - stream->start_pos;
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}
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static int mp_close(URLContext *h){
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return 0;
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}
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static URLProtocol mp_protocol = {
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"mp",
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mp_open,
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mp_read,
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mp_write,
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mp_seek,
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mp_close,
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};
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static void list_formats(void) {
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AVInputFormat *fmt;
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mp_msg(MSGT_DEMUX, MSGL_INFO, "Available lavf input formats:\n");
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for (fmt = first_iformat; fmt; fmt = fmt->next)
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mp_msg(MSGT_DEMUX, MSGL_INFO, "%15s : %s\n", fmt->name, fmt->long_name);
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}
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static int lavf_check_file(demuxer_t *demuxer){
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AVProbeData avpd;
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uint8_t buf[PROBE_BUF_SIZE];
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lavf_priv_t *priv;
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if(!demuxer->priv)
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demuxer->priv=calloc(sizeof(lavf_priv_t),1);
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priv= demuxer->priv;
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av_register_all();
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if(stream_read(demuxer->stream, buf, PROBE_BUF_SIZE)!=PROBE_BUF_SIZE)
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return 0;
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avpd.filename= demuxer->stream->url;
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avpd.buf= buf;
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avpd.buf_size= PROBE_BUF_SIZE;
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if (opt_format) {
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if (strcmp(opt_format, "help") == 0) {
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list_formats();
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return 0;
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}
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priv->avif= av_find_input_format(opt_format);
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if (!priv->avif) {
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mp_msg(MSGT_DEMUX,MSGL_FATAL,"Unknown lavf format %s\n", opt_format);
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return 0;
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}
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mp_msg(MSGT_DEMUX,MSGL_INFO,"Forced lavf %s demuxer\n", priv->avif->long_name);
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return DEMUXER_TYPE_LAVF;
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}
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priv->avif= av_probe_input_format(&avpd, 1);
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if(!priv->avif){
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mp_msg(MSGT_HEADER,MSGL_V,"LAVF_check: no clue about this gibberish!\n");
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return 0;
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}else
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mp_msg(MSGT_HEADER,MSGL_V,"LAVF_check: %s\n", priv->avif->long_name);
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return DEMUXER_TYPE_LAVF;
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}
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static const char *preferred_list[] = {
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"dxa",
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"wv",
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"nuv",
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"nut",
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"gxf",
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"mxf",
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"flv",
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"swf",
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NULL
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};
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static int lavf_check_preferred_file(demuxer_t *demuxer){
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if (lavf_check_file(demuxer)) {
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char **p = preferred_list;
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lavf_priv_t *priv = demuxer->priv;
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while (*p) {
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if (strcmp(*p, priv->avif->name) == 0)
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return DEMUXER_TYPE_LAVF_PREFERRED;
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p++;
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}
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}
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return 0;
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}
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static uint8_t char2int(char c) {
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if (c >= '0' && c <= '9') return c - '0';
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if (c >= 'a' && c <= 'f') return c - 'a' + 10;
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if (c >= 'A' && c <= 'F') return c - 'A' + 10;
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return 0;
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}
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static void parse_cryptokey(AVFormatContext *avfc, const char *str) {
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int len = strlen(str) / 2;
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uint8_t *key = av_mallocz(len);
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int i;
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avfc->keylen = len;
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avfc->key = key;
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for (i = 0; i < len; i++, str += 2)
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*key++ = (char2int(str[0]) << 4) | char2int(str[1]);
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}
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static demuxer_t* demux_open_lavf(demuxer_t *demuxer){
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AVFormatContext *avfc;
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AVFormatParameters ap;
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const AVOption *opt;
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lavf_priv_t *priv= demuxer->priv;
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int i,g;
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char mp_filename[256]="mp:";
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memset(&ap, 0, sizeof(AVFormatParameters));
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stream_seek(demuxer->stream, 0);
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register_protocol(&mp_protocol);
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avfc = av_alloc_format_context();
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if (opt_cryptokey)
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parse_cryptokey(avfc, opt_cryptokey);
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if (correct_pts)
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avfc->flags |= AVFMT_FLAG_GENPTS;
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if (index_mode == 0)
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avfc->flags |= AVFMT_FLAG_IGNIDX;
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ap.prealloced_context = 1;
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if(opt_probesize) {
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opt = av_set_int(avfc, "probesize", opt_probesize);
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if(!opt) mp_msg(MSGT_HEADER,MSGL_ERR, "demux_lavf, couldn't set option probesize to %u\n", opt_probesize);
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}
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if(opt_analyzeduration) {
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opt = av_set_int(avfc, "analyzeduration", opt_analyzeduration * AV_TIME_BASE);
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if(!opt) mp_msg(MSGT_HEADER,MSGL_ERR, "demux_lavf, couldn't set option analyzeduration to %u\n", opt_analyzeduration);
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}
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if(demuxer->stream->url)
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strncpy(mp_filename + 3, demuxer->stream->url, sizeof(mp_filename)-3);
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else
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strncpy(mp_filename + 3, "foobar.dummy", sizeof(mp_filename)-3);
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url_fopen(&priv->pb, mp_filename, URL_RDONLY);
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((URLContext*)(priv->pb.opaque))->priv_data= demuxer->stream;
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if(av_open_input_stream(&avfc, &priv->pb, mp_filename, priv->avif, &ap)<0){
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mp_msg(MSGT_HEADER,MSGL_ERR,"LAVF_header: av_open_input_stream() failed\n");
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return NULL;
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}
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priv->avfc= avfc;
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if(av_find_stream_info(avfc) < 0){
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mp_msg(MSGT_HEADER,MSGL_ERR,"LAVF_header: av_find_stream_info() failed\n");
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return NULL;
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}
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if(avfc->title [0]) demux_info_add(demuxer, "name" , avfc->title );
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if(avfc->author [0]) demux_info_add(demuxer, "author" , avfc->author );
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if(avfc->copyright[0]) demux_info_add(demuxer, "copyright", avfc->copyright);
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if(avfc->comment [0]) demux_info_add(demuxer, "comments" , avfc->comment );
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if(avfc->album [0]) demux_info_add(demuxer, "album" , avfc->album );
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// if(avfc->year ) demux_info_add(demuxer, "year" , avfc->year );
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// if(avfc->track ) demux_info_add(demuxer, "track" , avfc->track );
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if(avfc->genre [0]) demux_info_add(demuxer, "genre" , avfc->genre );
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for(i=0; i<avfc->nb_streams; i++){
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AVStream *st= avfc->streams[i];
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AVCodecContext *codec= st->codec;
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switch(codec->codec_type){
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case CODEC_TYPE_AUDIO:{
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WAVEFORMATEX *wf= calloc(sizeof(WAVEFORMATEX) + codec->extradata_size, 1);
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sh_audio_t* sh_audio;
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if(priv->audio_streams >= MAX_A_STREAMS)
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break;
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sh_audio=new_sh_audio(demuxer, i);
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mp_msg(MSGT_DEMUX, MSGL_INFO, MSGTR_AudioID, "lavf", i);
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if(!sh_audio)
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break;
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priv->astreams[priv->audio_streams] = i;
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priv->audio_streams++;
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// mp4a tag is used for all mp4 files no matter what they actually contain
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if(codec->codec_tag == MKTAG('m', 'p', '4', 'a'))
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codec->codec_tag= 0;
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if(codec->codec_id == CODEC_ID_ADPCM_IMA_AMV)
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codec->codec_tag= MKTAG('A','M','V','A');
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if(!codec->codec_tag)
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codec->codec_tag= av_codec_get_tag(mp_wav_taglists, codec->codec_id);
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wf->wFormatTag= codec->codec_tag;
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wf->nChannels= codec->channels;
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wf->nSamplesPerSec= codec->sample_rate;
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wf->nAvgBytesPerSec= codec->bit_rate/8;
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wf->nBlockAlign= codec->block_align ? codec->block_align : 1;
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wf->wBitsPerSample= codec->bits_per_sample;
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wf->cbSize= codec->extradata_size;
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if(codec->extradata_size){
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memcpy(
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wf + 1,
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codec->extradata,
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codec->extradata_size);
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}
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sh_audio->wf= wf;
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sh_audio->audio.dwSampleSize= codec->block_align;
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if(codec->frame_size && codec->sample_rate){
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sh_audio->audio.dwScale=codec->frame_size;
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sh_audio->audio.dwRate= codec->sample_rate;
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}else{
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sh_audio->audio.dwScale= codec->block_align ? codec->block_align*8 : 8;
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sh_audio->audio.dwRate = codec->bit_rate;
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}
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g= ff_gcd(sh_audio->audio.dwScale, sh_audio->audio.dwRate);
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sh_audio->audio.dwScale /= g;
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sh_audio->audio.dwRate /= g;
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// printf("sca:%d rat:%d fs:%d sr:%d ba:%d\n", sh_audio->audio.dwScale, sh_audio->audio.dwRate, codec->frame_size, codec->sample_rate, codec->block_align);
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sh_audio->ds= demuxer->audio;
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sh_audio->format= codec->codec_tag;
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sh_audio->channels= codec->channels;
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sh_audio->samplerate= codec->sample_rate;
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sh_audio->i_bps= codec->bit_rate/8;
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switch (codec->codec_id) {
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case CODEC_ID_PCM_S8:
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case CODEC_ID_PCM_U8:
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sh_audio->samplesize = 1;
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break;
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case CODEC_ID_PCM_S16LE:
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case CODEC_ID_PCM_S16BE:
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case CODEC_ID_PCM_U16LE:
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case CODEC_ID_PCM_U16BE:
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sh_audio->samplesize = 2;
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break;
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case CODEC_ID_PCM_ALAW:
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sh_audio->format = 0x6;
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break;
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case CODEC_ID_PCM_MULAW:
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sh_audio->format = 0x7;
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break;
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}
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if( mp_msg_test(MSGT_HEADER,MSGL_V) ) print_wave_header(sh_audio->wf, MSGL_V);
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if((audio_lang && st->language[0] && !strncmp(audio_lang, st->language, 3))
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|| (demuxer->audio->id == i || demuxer->audio->id == -1)
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) {
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demuxer->audio->id = i;
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demuxer->audio->sh= demuxer->a_streams[i];
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}
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else
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st->discard= AVDISCARD_ALL;
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break;}
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case CODEC_TYPE_VIDEO:{
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sh_video_t* sh_video;
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BITMAPINFOHEADER *bih;
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if(priv->video_streams >= MAX_V_STREAMS)
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break;
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sh_video=new_sh_video(demuxer, i);
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mp_msg(MSGT_DEMUX, MSGL_INFO, MSGTR_VideoID, "lavf", i);
|
|
if(!sh_video) break;
|
|
priv->vstreams[priv->video_streams] = i;
|
|
priv->video_streams++;
|
|
bih=calloc(sizeof(BITMAPINFOHEADER) + codec->extradata_size,1);
|
|
|
|
if(!codec->codec_tag)
|
|
codec->codec_tag= av_codec_get_tag(mp_bmp_taglists, codec->codec_id);
|
|
bih->biSize= sizeof(BITMAPINFOHEADER) + codec->extradata_size;
|
|
bih->biWidth= codec->width;
|
|
bih->biHeight= codec->height;
|
|
bih->biBitCount= codec->bits_per_sample;
|
|
bih->biSizeImage = bih->biWidth * bih->biHeight * bih->biBitCount/8;
|
|
bih->biCompression= codec->codec_tag;
|
|
sh_video->bih= bih;
|
|
sh_video->disp_w= codec->width;
|
|
sh_video->disp_h= codec->height;
|
|
if (st->time_base.den) { /* if container has time_base, use that */
|
|
sh_video->video.dwRate= st->time_base.den;
|
|
sh_video->video.dwScale= st->time_base.num;
|
|
} else {
|
|
sh_video->video.dwRate= codec->time_base.den;
|
|
sh_video->video.dwScale= codec->time_base.num;
|
|
}
|
|
sh_video->fps=av_q2d(st->r_frame_rate);
|
|
sh_video->frametime=1/av_q2d(st->r_frame_rate);
|
|
sh_video->format = bih->biCompression;
|
|
sh_video->aspect= codec->width * codec->sample_aspect_ratio.num
|
|
/ (float)(codec->height * codec->sample_aspect_ratio.den);
|
|
sh_video->i_bps= codec->bit_rate/8;
|
|
mp_msg(MSGT_DEMUX,MSGL_DBG2,"aspect= %d*%d/(%d*%d)\n",
|
|
codec->width, codec->sample_aspect_ratio.num,
|
|
codec->height, codec->sample_aspect_ratio.den);
|
|
|
|
sh_video->ds= demuxer->video;
|
|
if(codec->extradata_size)
|
|
memcpy(sh_video->bih + 1, codec->extradata, codec->extradata_size);
|
|
if( mp_msg_test(MSGT_HEADER,MSGL_V) ) print_video_header(sh_video->bih, MSGL_V);
|
|
/* short biPlanes;
|
|
int biXPelsPerMeter;
|
|
int biYPelsPerMeter;
|
|
int biClrUsed;
|
|
int biClrImportant;*/
|
|
if(demuxer->video->id != i && demuxer->video->id != -1)
|
|
st->discard= AVDISCARD_ALL;
|
|
else{
|
|
demuxer->video->id = i;
|
|
demuxer->video->sh= demuxer->v_streams[i];
|
|
}
|
|
break;}
|
|
case CODEC_TYPE_SUBTITLE:{
|
|
sh_sub_t* sh_sub;
|
|
if(priv->sub_streams >= MAX_S_STREAMS)
|
|
break;
|
|
/* only support text subtitles for now */
|
|
if(codec->codec_id != CODEC_ID_TEXT)
|
|
break;
|
|
sh_sub = new_sh_sub_sid(demuxer, i, priv->sub_streams);
|
|
mp_msg(MSGT_DEMUX, MSGL_INFO, MSGTR_SubtitleID, "lavf", priv->sub_streams);
|
|
if(!sh_sub) break;
|
|
priv->sstreams[priv->sub_streams] = i;
|
|
sh_sub->type = 't';
|
|
demuxer->sub->sh = demuxer->s_streams[priv->sub_streams++];
|
|
break;}
|
|
default:
|
|
st->discard= AVDISCARD_ALL;
|
|
}
|
|
}
|
|
|
|
mp_msg(MSGT_HEADER,MSGL_V,"LAVF: %d audio and %d video streams found\n",priv->audio_streams,priv->video_streams);
|
|
mp_msg(MSGT_HEADER,MSGL_V,"LAVF: build %d\n", LIBAVFORMAT_BUILD);
|
|
if(!priv->audio_streams) demuxer->audio->id=-2; // nosound
|
|
// else if(best_audio > 0 && demuxer->audio->id == -1) demuxer->audio->id=best_audio;
|
|
if(!priv->video_streams){
|
|
if(!priv->audio_streams){
|
|
mp_msg(MSGT_HEADER,MSGL_ERR,"LAVF: no audio or video headers found - broken file?\n");
|
|
return NULL;
|
|
}
|
|
demuxer->video->id=-2; // audio-only
|
|
} //else if (best_video > 0 && demuxer->video->id == -1) demuxer->video->id = best_video;
|
|
|
|
return demuxer;
|
|
}
|
|
|
|
static int demux_lavf_fill_buffer(demuxer_t *demux, demux_stream_t *dsds){
|
|
lavf_priv_t *priv= demux->priv;
|
|
AVPacket pkt;
|
|
demux_packet_t *dp;
|
|
demux_stream_t *ds;
|
|
int id;
|
|
mp_msg(MSGT_DEMUX,MSGL_DBG2,"demux_lavf_fill_buffer()\n");
|
|
|
|
demux->filepos=stream_tell(demux->stream);
|
|
|
|
if(av_read_frame(priv->avfc, &pkt) < 0)
|
|
return 0;
|
|
|
|
id= pkt.stream_index;
|
|
|
|
if(id==demux->audio->id){
|
|
// audio
|
|
ds=demux->audio;
|
|
if(!ds->sh){
|
|
ds->sh=demux->a_streams[id];
|
|
mp_msg(MSGT_DEMUX,MSGL_V,"Auto-selected LAVF audio ID = %d\n",ds->id);
|
|
}
|
|
} else if(id==demux->video->id){
|
|
// video
|
|
ds=demux->video;
|
|
if(!ds->sh){
|
|
ds->sh=demux->v_streams[id];
|
|
mp_msg(MSGT_DEMUX,MSGL_V,"Auto-selected LAVF video ID = %d\n",ds->id);
|
|
}
|
|
} else if(id==demux->sub->id){
|
|
// subtitle
|
|
ds=demux->sub;
|
|
sub_utf8=1;
|
|
} else {
|
|
av_free_packet(&pkt);
|
|
return 1;
|
|
}
|
|
|
|
if(0/*pkt.destruct == av_destruct_packet*/){
|
|
//ok kids, dont try this at home :)
|
|
dp=malloc(sizeof(demux_packet_t));
|
|
dp->len=pkt.size;
|
|
dp->next=NULL;
|
|
dp->refcount=1;
|
|
dp->master=NULL;
|
|
dp->buffer=pkt.data;
|
|
pkt.destruct= NULL;
|
|
}else{
|
|
dp=new_demux_packet(pkt.size);
|
|
memcpy(dp->buffer, pkt.data, pkt.size);
|
|
av_free_packet(&pkt);
|
|
}
|
|
|
|
if(pkt.pts != AV_NOPTS_VALUE){
|
|
dp->pts=pkt.pts * av_q2d(priv->avfc->streams[id]->time_base);
|
|
priv->last_pts= dp->pts * AV_TIME_BASE;
|
|
if(pkt.duration)
|
|
dp->endpts = dp->pts + pkt.duration * av_q2d(priv->avfc->streams[id]->time_base);
|
|
}
|
|
dp->pos=demux->filepos;
|
|
dp->flags= !!(pkt.flags&PKT_FLAG_KEY);
|
|
// append packet to DS stream:
|
|
ds_add_packet(ds,dp);
|
|
return 1;
|
|
}
|
|
|
|
static void demux_seek_lavf(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags){
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
int avsflags = 0;
|
|
mp_msg(MSGT_DEMUX,MSGL_DBG2,"demux_seek_lavf(%p, %f, %f, %d)\n", demuxer, rel_seek_secs, audio_delay, flags);
|
|
|
|
if (flags & 1) // absolute seek
|
|
priv->last_pts = priv->avfc->start_time;
|
|
if (flags & 2) { // percent seek
|
|
if (priv->avfc->duration == 0 || priv->avfc->duration == AV_NOPTS_VALUE)
|
|
return;
|
|
priv->last_pts += rel_seek_secs * priv->avfc->duration;
|
|
} else {
|
|
priv->last_pts += rel_seek_secs * AV_TIME_BASE;
|
|
if (rel_seek_secs < 0) avsflags = AVSEEK_FLAG_BACKWARD;
|
|
}
|
|
av_seek_frame(priv->avfc, -1, priv->last_pts, avsflags);
|
|
}
|
|
|
|
static int demux_lavf_control(demuxer_t *demuxer, int cmd, void *arg)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
|
|
switch (cmd) {
|
|
case DEMUXER_CTRL_GET_TIME_LENGTH:
|
|
if (priv->avfc->duration == 0 || priv->avfc->duration == AV_NOPTS_VALUE)
|
|
return DEMUXER_CTRL_DONTKNOW;
|
|
|
|
*((double *)arg) = (double)priv->avfc->duration / AV_TIME_BASE;
|
|
return DEMUXER_CTRL_OK;
|
|
|
|
case DEMUXER_CTRL_GET_PERCENT_POS:
|
|
if (priv->avfc->duration == 0 || priv->avfc->duration == AV_NOPTS_VALUE)
|
|
return DEMUXER_CTRL_DONTKNOW;
|
|
|
|
*((int *)arg) = (int)((priv->last_pts - priv->avfc->start_time)*100 / priv->avfc->duration);
|
|
return DEMUXER_CTRL_OK;
|
|
case DEMUXER_CTRL_SWITCH_AUDIO:
|
|
case DEMUXER_CTRL_SWITCH_VIDEO:
|
|
{
|
|
int id = *((int*)arg);
|
|
int newid = -2;
|
|
int i, curridx = -2;
|
|
int nstreams, *pstreams;
|
|
demux_stream_t *ds;
|
|
|
|
if(cmd == DEMUXER_CTRL_SWITCH_VIDEO)
|
|
{
|
|
ds = demuxer->video;
|
|
nstreams = priv->video_streams;
|
|
pstreams = priv->vstreams;
|
|
}
|
|
else
|
|
{
|
|
ds = demuxer->audio;
|
|
nstreams = priv->audio_streams;
|
|
pstreams = priv->astreams;
|
|
}
|
|
if(ds->id == -2)
|
|
return DEMUXER_CTRL_NOTIMPL;
|
|
for(i = 0; i < nstreams; i++)
|
|
{
|
|
if(pstreams[i] == ds->id) //current stream id
|
|
{
|
|
curridx = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(id < 0)
|
|
{
|
|
i = (curridx + 1) % nstreams;
|
|
newid = pstreams[i];
|
|
}
|
|
else
|
|
{
|
|
for(i = 0; i < nstreams; i++)
|
|
{
|
|
if(pstreams[i] == id)
|
|
{
|
|
newid = id;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if(newid == -2 || i == curridx)
|
|
return DEMUXER_CTRL_NOTIMPL;
|
|
else
|
|
{
|
|
ds_free_packs(ds);
|
|
priv->avfc->streams[ds->id]->discard = AVDISCARD_ALL;
|
|
*((int*)arg) = ds->id = newid;
|
|
priv->avfc->streams[newid]->discard = AVDISCARD_NONE;
|
|
return DEMUXER_CTRL_OK;
|
|
}
|
|
}
|
|
default:
|
|
return DEMUXER_CTRL_NOTIMPL;
|
|
}
|
|
}
|
|
|
|
/** \brief Get the language code for a subtitle track.
|
|
|
|
Retrieves the language code for a subtitle track.
|
|
|
|
\param demuxer The demuxer to work on
|
|
\param track_num The subtitle track number to get the language from
|
|
*/
|
|
char *demux_lavf_sub_lang(demuxer_t *demuxer, int track_num)
|
|
{
|
|
lavf_priv_t *priv = demuxer->priv;
|
|
return priv->avfc->streams[priv->sstreams[track_num]]->language;
|
|
}
|
|
|
|
static void demux_close_lavf(demuxer_t *demuxer)
|
|
{
|
|
lavf_priv_t* priv = demuxer->priv;
|
|
if (priv){
|
|
if(priv->avfc)
|
|
{
|
|
av_freep(&priv->avfc->key);
|
|
av_close_input_file(priv->avfc); priv->avfc= NULL;
|
|
}
|
|
free(priv); demuxer->priv= NULL;
|
|
}
|
|
}
|
|
|
|
|
|
demuxer_desc_t demuxer_desc_lavf = {
|
|
"libavformat demuxer",
|
|
"lavf",
|
|
"libavformat",
|
|
"Michael Niedermayer",
|
|
"supports many formats, requires libavformat",
|
|
DEMUXER_TYPE_LAVF,
|
|
0, // Check after other demuxer
|
|
lavf_check_file,
|
|
demux_lavf_fill_buffer,
|
|
demux_open_lavf,
|
|
demux_close_lavf,
|
|
demux_seek_lavf,
|
|
demux_lavf_control
|
|
};
|
|
|
|
demuxer_desc_t demuxer_desc_lavf_preferred = {
|
|
"libavformat preferred demuxer",
|
|
"lavfpref",
|
|
"libavformat",
|
|
"Michael Niedermayer",
|
|
"supports many formats, requires libavformat",
|
|
DEMUXER_TYPE_LAVF_PREFERRED,
|
|
1,
|
|
lavf_check_preferred_file,
|
|
demux_lavf_fill_buffer,
|
|
demux_open_lavf,
|
|
demux_close_lavf,
|
|
demux_seek_lavf,
|
|
demux_lavf_control
|
|
};
|