mirror of
https://github.com/mpv-player/mpv
synced 2024-12-24 15:52:25 +00:00
0864f92e7a
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@28085 b3059339-0415-0410-9bf9-f77b7e298cf2
812 lines
28 KiB
C
812 lines
28 KiB
C
/*
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* Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of MPlayer.
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*
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* MPlayer 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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* MPlayer 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 along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, 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 "av_opts.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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#include "libavformat/avformat.h"
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#include "libavformat/avio.h"
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#include "libavutil/avutil.h"
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#include "libavcodec/opt.h"
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#include "mp_taglists.h"
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#define PROBE_BUF_SIZE 2048
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extern char *audio_lang;
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extern char *dvdsub_lang;
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extern int dvdsub_id;
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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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extern int ts_prog;
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static char *opt_avopt = NULL;
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const 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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{"o", &opt_avopt, 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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#define BIO_BUFFER_SIZE 32768
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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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uint8_t buffer[BIO_BUFFER_SIZE];
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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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int cur_program;
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}lavf_priv_t;
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void print_wave_header(WAVEFORMATEX *h, int verbose_level);
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void print_video_header(BITMAPINFOHEADER *h, int verbose_level);
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static int mp_read(void *opaque, uint8_t *buf, int size) {
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stream_t *stream = opaque;
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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, stream, buf, size, stream->eof);
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return ret;
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}
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static int64_t mp_seek(void *opaque, int64_t pos, int whence) {
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stream_t *stream = opaque;
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int64_t current_pos;
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mp_msg(MSGT_HEADER,MSGL_DBG2,"mp_seek(%p, %d, %d)\n", stream, (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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current_pos = stream_tell(stream);
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if(stream_seek(stream, pos)==0) {
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stream_reset(stream);
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stream_seek(stream, current_pos);
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return -1;
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}
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return pos - stream->start_pos;
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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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"mov,mp4,m4a,3gp,3g2,mj2",
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"mpc",
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"mpc8",
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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 void handle_stream(demuxer_t *demuxer, AVFormatContext *avfc, int i) {
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lavf_priv_t *priv= demuxer->priv;
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AVStream *st= avfc->streams[i];
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AVCodecContext *codec= st->codec;
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int g;
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switch(codec->codec_type){
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case CODEC_TYPE_AUDIO:{
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int override_tag;
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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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// For some formats (like PCM) always trust CODEC_ID_* more than codec_tag
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override_tag= av_codec_get_tag(mp_wav_override_taglists, codec->codec_id);
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if (override_tag)
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codec->codec_tag= override_tag;
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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_coded_sample;
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wf->cbSize= codec->extradata_size;
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if(codec->extradata_size)
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memcpy(wf + 1, codec->extradata, codec->extradata_size);
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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 (st->language)
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sh_audio->lang = strdup(st->language);
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if (st->disposition & AV_DISPOSITION_DEFAULT)
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sh_audio->default_track = 1;
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if(mp_msg_test(MSGT_HEADER,MSGL_V) ) print_wave_header(sh_audio->wf, MSGL_V);
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// select the first audio stream
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if (!demuxer->audio->sh) {
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demuxer->audio->id = i;
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demuxer->audio->sh= demuxer->a_streams[i];
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} else
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st->discard= AVDISCARD_ALL;
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break;
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}
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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);
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if(!sh_video) break;
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priv->vstreams[priv->video_streams] = i;
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priv->video_streams++;
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bih=calloc(sizeof(BITMAPINFOHEADER) + codec->extradata_size,1);
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if(codec->codec_id == CODEC_ID_RAWVIDEO) {
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switch (codec->pix_fmt) {
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case PIX_FMT_RGB24:
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codec->codec_tag= MKTAG(24, 'B', 'G', 'R');
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}
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}
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if(!codec->codec_tag)
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codec->codec_tag= av_codec_get_tag(mp_bmp_taglists, codec->codec_id);
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bih->biSize= sizeof(BITMAPINFOHEADER) + codec->extradata_size;
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bih->biWidth= codec->width;
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bih->biHeight= codec->height;
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bih->biBitCount= codec->bits_per_coded_sample;
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bih->biSizeImage = bih->biWidth * bih->biHeight * bih->biBitCount/8;
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bih->biCompression= codec->codec_tag;
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sh_video->bih= bih;
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sh_video->disp_w= codec->width;
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sh_video->disp_h= codec->height;
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if (st->time_base.den) { /* if container has time_base, use that */
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sh_video->video.dwRate= st->time_base.den;
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sh_video->video.dwScale= st->time_base.num;
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} else {
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sh_video->video.dwRate= codec->time_base.den;
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sh_video->video.dwScale= codec->time_base.num;
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}
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sh_video->fps=av_q2d(st->r_frame_rate);
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sh_video->frametime=1/av_q2d(st->r_frame_rate);
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sh_video->format=bih->biCompression;
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if(st->sample_aspect_ratio.num)
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sh_video->aspect = codec->width * st->sample_aspect_ratio.num
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/ (float)(codec->height * st->sample_aspect_ratio.den);
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else
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sh_video->aspect=codec->width * codec->sample_aspect_ratio.num
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/ (float)(codec->height * codec->sample_aspect_ratio.den);
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sh_video->i_bps=codec->bit_rate/8;
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mp_msg(MSGT_DEMUX,MSGL_DBG2,"aspect= %d*%d/(%d*%d)\n",
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codec->width, codec->sample_aspect_ratio.num,
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codec->height, codec->sample_aspect_ratio.den);
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sh_video->ds= demuxer->video;
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if(codec->extradata_size)
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memcpy(sh_video->bih + 1, codec->extradata, codec->extradata_size);
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if( mp_msg_test(MSGT_HEADER,MSGL_V) ) print_video_header(sh_video->bih, MSGL_V);
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/*
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short biPlanes;
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int biXPelsPerMeter;
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int biYPelsPerMeter;
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int biClrUsed;
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int biClrImportant;
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*/
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if(demuxer->video->id != i && demuxer->video->id != -1)
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st->discard= AVDISCARD_ALL;
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else{
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demuxer->video->id = i;
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demuxer->video->sh= demuxer->v_streams[i];
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}
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break;
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}
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case CODEC_TYPE_SUBTITLE:{
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sh_sub_t* sh_sub;
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char type;
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if(priv->sub_streams >= MAX_S_STREAMS)
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break;
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/* only support text subtitles for now */
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if(codec->codec_id == CODEC_ID_TEXT)
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type = 't';
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else if(codec->codec_id == CODEC_ID_MOV_TEXT)
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type = 'm';
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else if(codec->codec_id == CODEC_ID_SSA)
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type = 'a';
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else if(codec->codec_id == CODEC_ID_DVD_SUBTITLE)
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type = 'v';
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else
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break;
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sh_sub = new_sh_sub_sid(demuxer, i, priv->sub_streams);
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mp_msg(MSGT_DEMUX, MSGL_INFO, MSGTR_SubtitleID, "lavf", priv->sub_streams);
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if(!sh_sub) break;
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priv->sstreams[priv->sub_streams] = i;
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sh_sub->type = type;
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if (codec->extradata_size) {
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sh_sub->extradata = malloc(codec->extradata_size);
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memcpy(sh_sub->extradata, codec->extradata, codec->extradata_size);
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sh_sub->extradata_len = codec->extradata_size;
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}
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if (st->language)
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sh_sub->lang = strdup(st->language);
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if (st->disposition & AV_DISPOSITION_DEFAULT)
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sh_sub->default_track = 1;
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priv->sub_streams++;
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break;
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}
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case CODEC_TYPE_ATTACHMENT:{
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if (st->codec->codec_id == CODEC_ID_TTF)
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demuxer_add_attachment(demuxer, st->filename,
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"application/x-truetype-font",
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codec->extradata, codec->extradata_size);
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break;
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}
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default:
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st->discard= AVDISCARD_ALL;
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}
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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;
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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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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 (user_correct_pts != 0)
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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;
|
|
|
|
ap.prealloced_context = 1;
|
|
if(opt_probesize) {
|
|
opt = av_set_int(avfc, "probesize", opt_probesize);
|
|
if(!opt) mp_msg(MSGT_HEADER,MSGL_ERR, "demux_lavf, couldn't set option probesize to %u\n", opt_probesize);
|
|
}
|
|
if(opt_analyzeduration) {
|
|
opt = av_set_int(avfc, "analyzeduration", opt_analyzeduration * AV_TIME_BASE);
|
|
if(!opt) mp_msg(MSGT_HEADER,MSGL_ERR, "demux_lavf, couldn't set option analyzeduration to %u\n", opt_analyzeduration);
|
|
}
|
|
|
|
if(opt_avopt){
|
|
if(parse_avopts(avfc, opt_avopt) < 0){
|
|
mp_msg(MSGT_HEADER,MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", opt_avopt);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if(demuxer->stream->url)
|
|
strncpy(mp_filename + 3, demuxer->stream->url, sizeof(mp_filename)-3);
|
|
else
|
|
strncpy(mp_filename + 3, "foobar.dummy", sizeof(mp_filename)-3);
|
|
|
|
priv->pb = av_alloc_put_byte(priv->buffer, BIO_BUFFER_SIZE, 0,
|
|
demuxer->stream, mp_read, NULL, mp_seek);
|
|
priv->pb->is_streamed = !demuxer->stream->end_pos || (demuxer->stream->flags & STREAM_SEEK) != STREAM_SEEK;
|
|
|
|
if(av_open_input_stream(&avfc, priv->pb, mp_filename, priv->avif, &ap)<0){
|
|
mp_msg(MSGT_HEADER,MSGL_ERR,"LAVF_header: av_open_input_stream() failed\n");
|
|
return NULL;
|
|
}
|
|
|
|
priv->avfc= avfc;
|
|
|
|
if(av_find_stream_info(avfc) < 0){
|
|
mp_msg(MSGT_HEADER,MSGL_ERR,"LAVF_header: av_find_stream_info() failed\n");
|
|
return NULL;
|
|
}
|
|
|
|
if(avfc->title [0]) demux_info_add(demuxer, "name" , avfc->title );
|
|
if(avfc->author [0]) demux_info_add(demuxer, "author" , avfc->author );
|
|
if(avfc->copyright[0]) demux_info_add(demuxer, "copyright", avfc->copyright);
|
|
if(avfc->comment [0]) demux_info_add(demuxer, "comments" , avfc->comment );
|
|
if(avfc->album [0]) demux_info_add(demuxer, "album" , avfc->album );
|
|
// if(avfc->year ) demux_info_add(demuxer, "year" , avfc->year );
|
|
// if(avfc->track ) demux_info_add(demuxer, "track" , avfc->track );
|
|
if(avfc->genre [0]) demux_info_add(demuxer, "genre" , avfc->genre );
|
|
|
|
for(i=0; i < avfc->nb_chapters; i++) {
|
|
AVChapter *c = avfc->chapters[i];
|
|
uint64_t start = av_rescale_q(c->start, c->time_base, (AVRational){1,1000});
|
|
uint64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,1000});
|
|
demuxer_add_chapter(demuxer, c->title, start, end);
|
|
}
|
|
|
|
if(avfc->nb_programs) {
|
|
int p, start=0, found=0;
|
|
|
|
if(ts_prog) {
|
|
for(p=0; p<avfc->nb_programs; p++) {
|
|
if(avfc->programs[p]->id == ts_prog) {
|
|
start = p;
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
if(!found) {
|
|
mp_msg(MSGT_HEADER,MSGL_ERR,"DEMUX_LAVF: program %d doesn't seem to be present\n", ts_prog);
|
|
return NULL;
|
|
}
|
|
}
|
|
p = start;
|
|
do {
|
|
AVProgram *program = avfc->programs[p];
|
|
mp_msg(MSGT_HEADER,MSGL_INFO,"LAVF: Program %d %s\n", program->id, (program->name ? program->name : ""));
|
|
for(i=0; i<program->nb_stream_indexes; i++)
|
|
handle_stream(demuxer, avfc, program->stream_index[i]);
|
|
if(!priv->cur_program && (demuxer->video->sh || demuxer->audio->sh))
|
|
priv->cur_program = program->id;
|
|
p = (p + 1) % avfc->nb_programs;
|
|
} while(p!=start);
|
|
} else
|
|
for(i=0; i<avfc->nb_streams; i++)
|
|
handle_stream(demuxer, avfc, i);
|
|
|
|
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.convergence_duration)
|
|
dp->endpts = dp->pts + pkt.convergence_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 & SEEK_ABSOLUTE) {
|
|
priv->last_pts = priv->avfc->start_time;
|
|
} else {
|
|
if (rel_seek_secs < 0) avsflags = AVSEEK_FLAG_BACKWARD;
|
|
}
|
|
if (flags & SEEK_FACTOR) {
|
|
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;
|
|
}
|
|
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_CORRECT_PTS:
|
|
return DEMUXER_CTRL_OK;
|
|
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 = -1;
|
|
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;
|
|
}
|
|
for(i = 0; i < nstreams; i++)
|
|
{
|
|
if(pstreams[i] == ds->id) //current stream id
|
|
{
|
|
curridx = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(id == -2) { // no sound
|
|
i = -1;
|
|
} else if(id == -1) { // next track
|
|
i = (curridx + 2) % (nstreams + 1) - 1;
|
|
if (i >= 0)
|
|
newid = pstreams[i];
|
|
}
|
|
else // select track by id
|
|
{
|
|
for(i = 0; i < nstreams; i++)
|
|
{
|
|
if(pstreams[i] == id)
|
|
{
|
|
newid = id;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if(i == curridx)
|
|
return DEMUXER_CTRL_NOTIMPL;
|
|
else
|
|
{
|
|
ds_free_packs(ds);
|
|
if(ds->id >= 0)
|
|
priv->avfc->streams[ds->id]->discard = AVDISCARD_ALL;
|
|
*((int*)arg) = ds->id = newid;
|
|
if(newid >= 0)
|
|
priv->avfc->streams[newid]->discard = AVDISCARD_NONE;
|
|
return DEMUXER_CTRL_OK;
|
|
}
|
|
}
|
|
case DEMUXER_CTRL_IDENTIFY_PROGRAM:
|
|
{
|
|
demux_program_t *prog = arg;
|
|
AVProgram *program;
|
|
int p, i;
|
|
|
|
if(priv->avfc->nb_programs < 2)
|
|
return DEMUXER_CTRL_NOTIMPL;
|
|
|
|
if(prog->progid == -1)
|
|
{
|
|
p = 0;
|
|
while(p<priv->avfc->nb_programs && priv->avfc->programs[p]->id != priv->cur_program)
|
|
p++;
|
|
p = (p + 1) % priv->avfc->nb_programs;
|
|
}
|
|
else
|
|
{
|
|
for(i=0; i<priv->avfc->nb_programs; i++)
|
|
if(priv->avfc->programs[i]->id == prog->progid)
|
|
break;
|
|
if(i==priv->avfc->nb_programs)
|
|
return DEMUXER_CTRL_NOTIMPL;
|
|
p = i;
|
|
}
|
|
prog->vid = prog->aid = prog->sid = -2; //no audio and no video by default
|
|
redo:
|
|
program = priv->avfc->programs[p];
|
|
for(i=0; i<program->nb_stream_indexes; i++)
|
|
{
|
|
switch(priv->avfc->streams[program->stream_index[i]]->codec->codec_type)
|
|
{
|
|
case CODEC_TYPE_VIDEO:
|
|
if(prog->vid == -2)
|
|
prog->vid = program->stream_index[i];
|
|
break;
|
|
case CODEC_TYPE_AUDIO:
|
|
if(prog->aid == -2)
|
|
prog->aid = program->stream_index[i];
|
|
break;
|
|
case CODEC_TYPE_SUBTITLE:
|
|
if(prog->sid == -2 && priv->avfc->streams[program->stream_index[i]]->codec->codec_id == CODEC_ID_TEXT)
|
|
prog->sid = program->stream_index[i];
|
|
break;
|
|
}
|
|
}
|
|
if(prog->progid == -1 && prog->vid == -2 && prog->aid == -2)
|
|
{
|
|
p = (p + 1) % priv->avfc->nb_programs;
|
|
goto redo;
|
|
}
|
|
priv->cur_program = prog->progid = program->id;
|
|
return DEMUXER_CTRL_OK;
|
|
}
|
|
default:
|
|
return DEMUXER_CTRL_NOTIMPL;
|
|
}
|
|
}
|
|
|
|
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_stream(priv->avfc);
|
|
}
|
|
av_freep(&priv->pb);
|
|
free(priv); demuxer->priv= NULL;
|
|
}
|
|
}
|
|
|
|
|
|
const 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
|
|
};
|
|
|
|
const 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
|
|
};
|