mirror of
https://git.ffmpeg.org/ffmpeg.git
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a38469e1da
Originally committed as revision 144 to svn://svn.ffmpeg.org/ffmpeg/trunk
2061 lines
61 KiB
C
2061 lines
61 KiB
C
/*
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* FFmpeg main
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* Copyright (c) 2000,2001 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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#define HAVE_AV_CONFIG_H
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#include "avformat.h"
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#ifndef CONFIG_WIN32
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <termios.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <ctype.h>
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#endif
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#define MAXINT64 INT64_C(0x7fffffffffffffff)
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typedef struct {
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const char *name;
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int flags;
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#define HAS_ARG 0x0001
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#define OPT_BOOL 0x0002
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#define OPT_EXPERT 0x0004
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#define OPT_STRING 0x0008
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union {
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void (*func_arg)();
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int *int_arg;
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char **str_arg;
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} u;
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const char *help;
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const char *argname;
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} OptionDef;
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/* select an input stream for an output stream */
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typedef struct AVStreamMap {
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int file_index;
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int stream_index;
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} AVStreamMap;
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extern const OptionDef options[];
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void show_help(void);
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#define MAX_FILES 20
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static AVFormatContext *input_files[MAX_FILES];
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static int nb_input_files = 0;
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static AVFormatContext *output_files[MAX_FILES];
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static int nb_output_files = 0;
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static AVStreamMap stream_maps[MAX_FILES];
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static int nb_stream_maps;
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static AVFormat *file_format;
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static int frame_width = 160;
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static int frame_height = 128;
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static int frame_rate = 25 * FRAME_RATE_BASE;
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static int video_bit_rate = 200000;
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static int video_qscale = 0;
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static int video_disable = 0;
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static int video_codec_id = CODEC_ID_NONE;
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static int same_quality = 0;
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static int do_deinterlace = 0;
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static int gop_size = 12;
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static int intra_only = 0;
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static int audio_sample_rate = 44100;
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static int audio_bit_rate = 64000;
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static int audio_disable = 0;
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static int audio_channels = 1;
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static int audio_codec_id = CODEC_ID_NONE;
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static INT64 recording_time = 0;
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static int file_overwrite = 0;
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static char *str_title = NULL;
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static char *str_author = NULL;
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static char *str_copyright = NULL;
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static char *str_comment = NULL;
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static int do_benchmark = 0;
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static int do_hex_dump = 0;
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static int do_play = 0;
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typedef struct AVOutputStream {
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int file_index; /* file index */
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int index; /* stream index in the output file */
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int source_index; /* AVInputStream index */
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AVStream *st; /* stream in the output file */
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int encoding_needed; /* true if encoding needed for this stream */
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int fifo_packet_rptr; /* read index in the corresponding
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avinputstream packet fifo */
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/* video only */
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AVPicture pict_tmp; /* temporary image for resizing */
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int video_resample;
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ImgReSampleContext *img_resample_ctx; /* for image resampling */
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/* audio only */
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int audio_resample;
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ReSampleContext *resample; /* for audio resampling */
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FifoBuffer fifo; /* for compression: one audio fifo per codec */
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} AVOutputStream;
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typedef struct AVInputStream {
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int file_index;
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int index;
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AVStream *st;
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int discard; /* true if stream data should be discarded */
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int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
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INT64 pts; /* current pts */
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int frame_number; /* current frame */
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INT64 sample_index; /* current sample */
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} AVInputStream;
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typedef struct AVInputFile {
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int eof_reached; /* true if eof reached */
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int ist_index; /* index of first stream in ist_table */
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int buffer_size; /* current total buffer size */
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int buffer_size_max; /* buffer size at which we consider we can stop
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buffering */
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} AVInputFile;
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#ifndef CONFIG_WIN32
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/* init terminal so that we can grab keys */
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static struct termios oldtty;
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static void term_exit(void)
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{
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tcsetattr (0, TCSANOW, &oldtty);
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}
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static void term_init(void)
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{
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struct termios tty;
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tcgetattr (0, &tty);
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oldtty = tty;
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tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
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|INLCR|IGNCR|ICRNL|IXON);
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tty.c_oflag |= OPOST;
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tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
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tty.c_cflag &= ~(CSIZE|PARENB);
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tty.c_cflag |= CS8;
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tty.c_cc[VMIN] = 1;
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tty.c_cc[VTIME] = 0;
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tcsetattr (0, TCSANOW, &tty);
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atexit(term_exit);
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}
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/* read a key without blocking */
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static int read_key(void)
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{
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struct timeval tv;
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int n;
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unsigned char ch;
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fd_set rfds;
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FD_ZERO(&rfds);
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FD_SET(0, &rfds);
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tv.tv_sec = 0;
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tv.tv_usec = 0;
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n = select(1, &rfds, NULL, NULL, &tv);
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if (n > 0) {
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if (read(0, &ch, 1) == 1)
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return ch;
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}
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return -1;
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}
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#else
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/* no interactive support */
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static void term_exit(void)
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{
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}
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static void term_init(void)
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{
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}
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static int read_key(void)
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{
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return -1;
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}
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#endif
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int read_ffserver_streams(AVFormatContext *s, const char *filename)
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{
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int i;
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AVFormatContext *ic;
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ic = av_open_input_file(filename, NULL, FFM_PACKET_SIZE, NULL);
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if (!ic)
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return -EIO;
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/* copy stream format */
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s->nb_streams = ic->nb_streams;
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for(i=0;i<ic->nb_streams;i++) {
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AVStream *st;
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st = av_mallocz(sizeof(AVFormatContext));
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memcpy(st, ic->streams[i], sizeof(AVStream));
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s->streams[i] = st;
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}
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av_close_input_file(ic);
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return 0;
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}
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#define MAX_AUDIO_PACKET_SIZE 16384
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static void do_audio_out(AVFormatContext *s,
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AVOutputStream *ost,
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AVInputStream *ist,
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unsigned char *buf, int size)
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{
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UINT8 *buftmp;
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UINT8 audio_buf[2*MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */
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UINT8 audio_out[MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */
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int size_out, frame_bytes, ret;
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AVCodecContext *enc;
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enc = &ost->st->codec;
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if (ost->audio_resample) {
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buftmp = audio_buf;
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size_out = audio_resample(ost->resample,
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(short *)buftmp, (short *)buf,
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size / (ist->st->codec.channels * 2));
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size_out = size_out * enc->channels * 2;
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} else {
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buftmp = buf;
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size_out = size;
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}
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/* now encode as many frames as possible */
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if (enc->frame_size > 1) {
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/* output resampled raw samples */
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fifo_write(&ost->fifo, buftmp, size_out,
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&ost->fifo.wptr);
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frame_bytes = enc->frame_size * 2 * enc->channels;
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while (fifo_read(&ost->fifo, audio_buf, frame_bytes,
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&ost->fifo.rptr) == 0) {
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ret = avcodec_encode_audio(enc, audio_out, sizeof(audio_out),
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(short *)audio_buf);
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s->format->write_packet(s, ost->index, audio_out, ret);
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}
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} else {
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/* output a pcm frame */
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/* XXX: change encoding codec API to avoid this ? */
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switch(enc->codec->id) {
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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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break;
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default:
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size_out = size_out >> 1;
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break;
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}
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ret = avcodec_encode_audio(enc, audio_out, size_out,
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(short *)buftmp);
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s->format->write_packet(s, ost->index, audio_out, ret);
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}
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}
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/* write a picture to a raw mux */
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static void write_picture(AVFormatContext *s, int index, AVPicture *picture,
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int pix_fmt, int w, int h)
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{
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UINT8 *buf, *src, *dest;
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int size, j, i;
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size = avpicture_get_size(pix_fmt, w, h);
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buf = malloc(size);
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if (!buf)
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return;
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/* XXX: not efficient, should add test if we can take
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directly the AVPicture */
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switch(pix_fmt) {
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case PIX_FMT_YUV420P:
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dest = buf;
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for(i=0;i<3;i++) {
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if (i == 1) {
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w >>= 1;
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h >>= 1;
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}
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src = picture->data[i];
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for(j=0;j<h;j++) {
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memcpy(dest, src, w);
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dest += w;
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src += picture->linesize[i];
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}
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}
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break;
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case PIX_FMT_YUV422P:
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size = (w * h) * 2;
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buf = malloc(size);
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dest = buf;
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for(i=0;i<3;i++) {
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if (i == 1) {
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w >>= 1;
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}
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src = picture->data[i];
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for(j=0;j<h;j++) {
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memcpy(dest, src, w);
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dest += w;
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src += picture->linesize[i];
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}
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}
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break;
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case PIX_FMT_YUV444P:
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size = (w * h) * 3;
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buf = malloc(size);
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dest = buf;
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for(i=0;i<3;i++) {
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src = picture->data[i];
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for(j=0;j<h;j++) {
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memcpy(dest, src, w);
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dest += w;
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src += picture->linesize[i];
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}
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}
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break;
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case PIX_FMT_YUV422:
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size = (w * h) * 2;
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buf = malloc(size);
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dest = buf;
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src = picture->data[0];
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for(j=0;j<h;j++) {
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memcpy(dest, src, w * 2);
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dest += w * 2;
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src += picture->linesize[0];
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}
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break;
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case PIX_FMT_RGB24:
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case PIX_FMT_BGR24:
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size = (w * h) * 3;
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buf = malloc(size);
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dest = buf;
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src = picture->data[0];
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for(j=0;j<h;j++) {
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memcpy(dest, src, w * 3);
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dest += w * 3;
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src += picture->linesize[0];
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}
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break;
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default:
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return;
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}
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s->format->write_packet(s, index, buf, size);
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free(buf);
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}
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static void do_video_out(AVFormatContext *s,
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AVOutputStream *ost,
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AVInputStream *ist,
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AVPicture *picture1)
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{
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int n1, n2, nb, i, ret, frame_number;
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AVPicture *picture, *picture2, *pict;
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AVPicture picture_tmp1, picture_tmp2;
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UINT8 video_buffer[1024*1024];
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UINT8 *buf = NULL, *buf1 = NULL;
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AVCodecContext *enc, *dec;
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enc = &ost->st->codec;
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dec = &ist->st->codec;
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frame_number = ist->frame_number;
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/* first drop frame if needed */
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n1 = ((INT64)frame_number * enc->frame_rate) / dec->frame_rate;
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n2 = (((INT64)frame_number + 1) * enc->frame_rate) / dec->frame_rate;
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nb = n2 - n1;
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if (nb <= 0)
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return;
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/* deinterlace : must be done before any resize */
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if (do_deinterlace) {
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int size;
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/* create temporary picture */
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size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
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buf1 = malloc(size);
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if (!buf1)
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return;
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picture2 = &picture_tmp2;
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avpicture_fill(picture2, buf1, dec->pix_fmt, dec->width, dec->height);
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if (avpicture_deinterlace(picture2, picture1,
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dec->pix_fmt, dec->width, dec->height) < 0) {
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/* if error, do not deinterlace */
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free(buf1);
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buf1 = NULL;
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picture2 = picture1;
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}
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} else {
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picture2 = picture1;
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}
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/* convert pixel format if needed */
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if (enc->pix_fmt != dec->pix_fmt) {
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int size;
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/* create temporary picture */
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size = avpicture_get_size(enc->pix_fmt, dec->width, dec->height);
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buf = malloc(size);
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if (!buf)
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return;
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pict = &picture_tmp1;
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avpicture_fill(pict, buf, enc->pix_fmt, dec->width, dec->height);
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if (img_convert(pict, enc->pix_fmt,
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picture2, dec->pix_fmt,
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dec->width, dec->height) < 0) {
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fprintf(stderr, "pixel format conversion not handled\n");
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goto the_end;
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}
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} else {
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pict = picture2;
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}
|
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|
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/* XXX: resampling could be done before raw format convertion in
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some cases to go faster */
|
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/* XXX: only works for YUV420P */
|
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if (ost->video_resample) {
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picture = &ost->pict_tmp;
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img_resample(ost->img_resample_ctx, picture, pict);
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} else {
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picture = pict;
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}
|
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|
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/* duplicates frame if needed */
|
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/* XXX: pb because no interleaving */
|
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for(i=0;i<nb;i++) {
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if (enc->codec_id != CODEC_ID_RAWVIDEO) {
|
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/* handles sameq here. This is not correct because it may
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not be a global option */
|
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if (same_quality) {
|
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enc->quality = dec->quality;
|
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}
|
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ret = avcodec_encode_video(enc,
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video_buffer, sizeof(video_buffer),
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picture);
|
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s->format->write_packet(s, ost->index, video_buffer, ret);
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} else {
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write_picture(s, ost->index, picture, enc->pix_fmt, enc->width, enc->height);
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}
|
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}
|
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the_end:
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if (buf)
|
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free(buf);
|
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if (buf1)
|
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free(buf1);
|
|
}
|
|
|
|
static void hex_dump(UINT8 *buf, int size)
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|
{
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int len, i, j, c;
|
|
|
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for(i=0;i<size;i+=16) {
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len = size - i;
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if (len > 16)
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len = 16;
|
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printf("%08x ", i);
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for(j=0;j<16;j++) {
|
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if (j < len)
|
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printf(" %02x", buf[i+j]);
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else
|
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printf(" ");
|
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}
|
|
printf(" ");
|
|
for(j=0;j<len;j++) {
|
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c = buf[i+j];
|
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if (c < ' ' || c > '~')
|
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c = '.';
|
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printf("%c", c);
|
|
}
|
|
printf("\n");
|
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}
|
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}
|
|
|
|
/*
|
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* The following code is the main loop of the file converter
|
|
*/
|
|
static int av_encode(AVFormatContext **output_files,
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int nb_output_files,
|
|
AVFormatContext **input_files,
|
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int nb_input_files,
|
|
AVStreamMap *stream_maps, int nb_stream_maps)
|
|
{
|
|
int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
|
|
AVFormatContext *is, *os;
|
|
AVCodecContext *codec, *icodec;
|
|
AVOutputStream *ost, **ost_table = NULL;
|
|
AVInputStream *ist, **ist_table = NULL;
|
|
INT64 min_pts, start_time;
|
|
AVInputFile *file_table;
|
|
|
|
file_table= (AVInputFile*) malloc(nb_input_files * sizeof(AVInputFile));
|
|
if (!file_table)
|
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goto fail;
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|
|
|
memset(file_table, 0, sizeof(file_table));
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|
|
|
/* input stream init */
|
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j = 0;
|
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for(i=0;i<nb_input_files;i++) {
|
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is = input_files[i];
|
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file_table[i].ist_index = j;
|
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j += is->nb_streams;
|
|
}
|
|
nb_istreams = j;
|
|
|
|
ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
|
|
if (!ist_table)
|
|
goto fail;
|
|
|
|
for(i=0;i<nb_istreams;i++) {
|
|
ist = av_mallocz(sizeof(AVInputStream));
|
|
if (!ist)
|
|
goto fail;
|
|
ist_table[i] = ist;
|
|
}
|
|
j = 0;
|
|
for(i=0;i<nb_input_files;i++) {
|
|
is = input_files[i];
|
|
for(k=0;k<is->nb_streams;k++) {
|
|
ist = ist_table[j++];
|
|
ist->st = is->streams[k];
|
|
ist->file_index = i;
|
|
ist->index = k;
|
|
ist->discard = 1; /* the stream is discarded by default
|
|
(changed later) */
|
|
}
|
|
}
|
|
|
|
/* output stream init */
|
|
nb_ostreams = 0;
|
|
for(i=0;i<nb_output_files;i++) {
|
|
os = output_files[i];
|
|
nb_ostreams += os->nb_streams;
|
|
}
|
|
if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
|
|
fprintf(stderr, "Number of stream maps must match number of output streams\n");
|
|
exit(1);
|
|
}
|
|
|
|
ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
|
|
if (!ost_table)
|
|
goto fail;
|
|
for(i=0;i<nb_ostreams;i++) {
|
|
ost = av_mallocz(sizeof(AVOutputStream));
|
|
if (!ost)
|
|
goto fail;
|
|
ost_table[i] = ost;
|
|
}
|
|
|
|
n = 0;
|
|
for(k=0;k<nb_output_files;k++) {
|
|
os = output_files[k];
|
|
for(i=0;i<os->nb_streams;i++) {
|
|
int found;
|
|
ost = ost_table[n++];
|
|
ost->file_index = k;
|
|
ost->index = i;
|
|
ost->st = os->streams[i];
|
|
if (nb_stream_maps > 0) {
|
|
ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
|
|
stream_maps[n-1].stream_index;
|
|
} else {
|
|
/* get corresponding input stream index : we select the first one with the right type */
|
|
found = 0;
|
|
for(j=0;j<nb_istreams;j++) {
|
|
ist = ist_table[j];
|
|
if (ist->discard &&
|
|
ist->st->codec.codec_type == ost->st->codec.codec_type) {
|
|
ost->source_index = j;
|
|
found = 1;
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
/* try again and reuse existing stream */
|
|
for(j=0;j<nb_istreams;j++) {
|
|
ist = ist_table[j];
|
|
if (ist->st->codec.codec_type == ost->st->codec.codec_type) {
|
|
ost->source_index = j;
|
|
found = 1;
|
|
}
|
|
}
|
|
if (!found) {
|
|
fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
|
|
ost->file_index, ost->index);
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
ist = ist_table[ost->source_index];
|
|
ist->discard = 0;
|
|
}
|
|
}
|
|
|
|
/* dump the stream mapping */
|
|
fprintf(stderr, "Stream mapping:\n");
|
|
for(i=0;i<nb_ostreams;i++) {
|
|
ost = ost_table[i];
|
|
fprintf(stderr, " Stream #%d.%d -> #%d.%d\n",
|
|
ist_table[ost->source_index]->file_index,
|
|
ist_table[ost->source_index]->index,
|
|
ost->file_index,
|
|
ost->index);
|
|
}
|
|
|
|
/* for each output stream, we compute the right encoding parameters */
|
|
for(i=0;i<nb_ostreams;i++) {
|
|
ost = ost_table[i];
|
|
ist = ist_table[ost->source_index];
|
|
|
|
codec = &ost->st->codec;
|
|
icodec = &ist->st->codec;
|
|
|
|
switch(codec->codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
/* check if same codec with same parameters. If so, no
|
|
reencoding is needed */
|
|
if (codec->codec_id == icodec->codec_id &&
|
|
codec->bit_rate == icodec->bit_rate &&
|
|
codec->sample_rate == icodec->sample_rate &&
|
|
codec->channels == icodec->channels) {
|
|
/* no reencoding */
|
|
} else {
|
|
if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
|
|
goto fail;
|
|
|
|
if (codec->channels == icodec->channels &&
|
|
codec->sample_rate == icodec->sample_rate) {
|
|
ost->audio_resample = 0;
|
|
} else {
|
|
ost->audio_resample = 1;
|
|
ost->resample = audio_resample_init(codec->channels, icodec->channels,
|
|
codec->sample_rate,
|
|
icodec->sample_rate);
|
|
}
|
|
ist->decoding_needed = 1;
|
|
ost->encoding_needed = 1;
|
|
}
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
/* check if same codec with same parameters. If so, no
|
|
reencoding is needed */
|
|
if (codec->codec_id == icodec->codec_id &&
|
|
codec->bit_rate == icodec->bit_rate &&
|
|
codec->frame_rate == icodec->frame_rate &&
|
|
codec->width == icodec->width &&
|
|
codec->height == icodec->height) {
|
|
/* no reencoding */
|
|
} else {
|
|
if (codec->width == icodec->width &&
|
|
codec->height == icodec->height) {
|
|
ost->video_resample = 0;
|
|
} else {
|
|
UINT8 *buf;
|
|
ost->video_resample = 1;
|
|
buf = malloc((codec->width * codec->height * 3) / 2);
|
|
if (!buf)
|
|
goto fail;
|
|
ost->pict_tmp.data[0] = buf;
|
|
ost->pict_tmp.data[1] = ost->pict_tmp.data[0] + (codec->width * codec->height);
|
|
ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (codec->width * codec->height) / 4;
|
|
ost->pict_tmp.linesize[0] = codec->width;
|
|
ost->pict_tmp.linesize[1] = codec->width / 2;
|
|
ost->pict_tmp.linesize[2] = codec->width / 2;
|
|
|
|
ost->img_resample_ctx = img_resample_init(
|
|
ost->st->codec.width, ost->st->codec.height,
|
|
ist->st->codec.width, ist->st->codec.height);
|
|
}
|
|
ost->encoding_needed = 1;
|
|
ist->decoding_needed = 1;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* open each encoder */
|
|
for(i=0;i<nb_ostreams;i++) {
|
|
ost = ost_table[i];
|
|
if (ost->encoding_needed) {
|
|
AVCodec *codec;
|
|
codec = avcodec_find_encoder(ost->st->codec.codec_id);
|
|
if (!codec) {
|
|
fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
|
|
ost->file_index, ost->index);
|
|
exit(1);
|
|
}
|
|
if (avcodec_open(&ost->st->codec, codec) < 0) {
|
|
fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
|
|
ost->file_index, ost->index);
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* open each decoder */
|
|
for(i=0;i<nb_istreams;i++) {
|
|
ist = ist_table[i];
|
|
if (ist->decoding_needed) {
|
|
AVCodec *codec;
|
|
codec = avcodec_find_decoder(ist->st->codec.codec_id);
|
|
if (!codec) {
|
|
fprintf(stderr, "Unsupported codec for input stream #%d.%d\n",
|
|
ist->file_index, ist->index);
|
|
exit(1);
|
|
}
|
|
if (avcodec_open(&ist->st->codec, codec) < 0) {
|
|
fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
|
|
ist->file_index, ist->index);
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* init pts */
|
|
for(i=0;i<nb_istreams;i++) {
|
|
ist = ist_table[i];
|
|
ist->pts = 0;
|
|
ist->frame_number = 0;
|
|
}
|
|
|
|
/* compute buffer size max (should use a complete heuristic) */
|
|
for(i=0;i<nb_input_files;i++) {
|
|
file_table[i].buffer_size_max = 2048;
|
|
}
|
|
|
|
/* open files and write file headers */
|
|
for(i=0;i<nb_output_files;i++) {
|
|
os = output_files[i];
|
|
if (os->format->write_header(os) < 0) {
|
|
fprintf(stderr, "Could not write header for output file #%d (incorrect codec paramters ?)\n", i);
|
|
ret = -EINVAL;
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
#ifndef CONFIG_WIN32
|
|
if (!do_play) {
|
|
fprintf(stderr, "Press [q] to stop encoding\n");
|
|
} else {
|
|
fprintf(stderr, "Press [q] to stop playing\n");
|
|
}
|
|
#endif
|
|
term_init();
|
|
|
|
start_time = gettime();
|
|
min_pts = 0;
|
|
for(;;) {
|
|
int file_index, ist_index;
|
|
AVPacket pkt;
|
|
UINT8 *ptr;
|
|
int len;
|
|
UINT8 *data_buf;
|
|
int data_size, got_picture;
|
|
AVPicture picture;
|
|
short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
|
|
|
|
redo:
|
|
/* if 'q' pressed, exits */
|
|
if (read_key() == 'q')
|
|
break;
|
|
|
|
/* select the input file with the smallest pts */
|
|
file_index = -1;
|
|
min_pts = MAXINT64;
|
|
for(i=0;i<nb_istreams;i++) {
|
|
ist = ist_table[i];
|
|
if (!ist->discard && !file_table[ist->file_index].eof_reached && ist->pts < min_pts) {
|
|
min_pts = ist->pts;
|
|
file_index = ist->file_index;
|
|
}
|
|
}
|
|
/* if none, if is finished */
|
|
if (file_index < 0)
|
|
break;
|
|
/* finish if recording time exhausted */
|
|
if (recording_time > 0 && min_pts >= recording_time)
|
|
break;
|
|
/* read a packet from it and output it in the fifo */
|
|
is = input_files[file_index];
|
|
if (av_read_packet(is, &pkt) < 0) {
|
|
file_table[file_index].eof_reached = 1;
|
|
continue;
|
|
}
|
|
ist_index = file_table[file_index].ist_index + pkt.stream_index;
|
|
ist = ist_table[ist_index];
|
|
if (ist->discard) {
|
|
continue;
|
|
}
|
|
|
|
if (do_hex_dump) {
|
|
printf("stream #%d, size=%d:\n", pkt.stream_index, pkt.size);
|
|
hex_dump(pkt.data, pkt.size);
|
|
}
|
|
|
|
// printf("read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
|
|
|
|
len = pkt.size;
|
|
ptr = pkt.data;
|
|
while (len > 0) {
|
|
|
|
/* decode the packet if needed */
|
|
data_buf = NULL; /* fail safe */
|
|
data_size = 0;
|
|
if (ist->decoding_needed) {
|
|
switch(ist->st->codec.codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
/* XXX: could avoid copy if PCM 16 bits with same
|
|
endianness as CPU */
|
|
ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size,
|
|
ptr, len);
|
|
if (ret < 0)
|
|
goto fail_decode;
|
|
if (data_size == 0) {
|
|
/* no audio frame */
|
|
ptr += ret;
|
|
len -= ret;
|
|
continue;
|
|
}
|
|
data_buf = (UINT8 *)samples;
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
if (ist->st->codec.codec_id == CODEC_ID_RAWVIDEO) {
|
|
int size;
|
|
size = (ist->st->codec.width * ist->st->codec.height);
|
|
avpicture_fill(&picture, ptr,
|
|
ist->st->codec.pix_fmt,
|
|
ist->st->codec.width,
|
|
ist->st->codec.height);
|
|
ret = len;
|
|
} else {
|
|
data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
|
|
ret = avcodec_decode_video(&ist->st->codec,
|
|
&picture, &got_picture, ptr, len);
|
|
if (ret < 0) {
|
|
fail_decode:
|
|
fprintf(stderr, "Error while decoding stream #%d.%d\n",
|
|
ist->file_index, ist->index);
|
|
av_free_packet(&pkt);
|
|
goto redo;
|
|
}
|
|
if (!got_picture) {
|
|
/* no picture yet */
|
|
ptr += ret;
|
|
len -= ret;
|
|
continue;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
goto fail_decode;
|
|
}
|
|
} else {
|
|
data_buf = ptr;
|
|
data_size = len;
|
|
ret = len;
|
|
}
|
|
/* update pts */
|
|
switch(ist->st->codec.codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
ist->pts = (INT64)1000000 * ist->sample_index / ist->st->codec.sample_rate;
|
|
ist->sample_index += data_size / (2 * ist->st->codec.channels);
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
ist->frame_number++;
|
|
ist->pts = ((INT64)ist->frame_number * 1000000 * FRAME_RATE_BASE) /
|
|
ist->st->codec.frame_rate;
|
|
break;
|
|
}
|
|
ptr += ret;
|
|
len -= ret;
|
|
|
|
/* transcode raw format, encode packets and output them */
|
|
|
|
for(i=0;i<nb_ostreams;i++) {
|
|
ost = ost_table[i];
|
|
if (ost->source_index == ist_index) {
|
|
os = output_files[ost->file_index];
|
|
|
|
if (ost->encoding_needed) {
|
|
switch(ost->st->codec.codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
do_audio_out(os, ost, ist, data_buf, data_size);
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
do_video_out(os, ost, ist, &picture);
|
|
break;
|
|
}
|
|
} else {
|
|
/* no reencoding needed : output the packet directly */
|
|
os->format->write_packet(os, ost->index, data_buf, data_size);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
av_free_packet(&pkt);
|
|
|
|
/* dump report by using the first video and audio streams */
|
|
{
|
|
char buf[1024];
|
|
AVFormatContext *oc;
|
|
INT64 total_size, ti;
|
|
AVCodecContext *enc;
|
|
int frame_number, vid;
|
|
double bitrate, ti1;
|
|
static INT64 last_time;
|
|
|
|
if ((min_pts - last_time) >= 500000) {
|
|
last_time = min_pts;
|
|
|
|
oc = output_files[0];
|
|
|
|
total_size = url_ftell(&oc->pb);
|
|
|
|
buf[0] = '\0';
|
|
ti = MAXINT64;
|
|
vid = 0;
|
|
for(i=0;i<nb_ostreams;i++) {
|
|
ost = ost_table[i];
|
|
enc = &ost->st->codec;
|
|
ist = ist_table[ost->source_index];
|
|
if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
|
|
frame_number = ist->frame_number;
|
|
sprintf(buf + strlen(buf), "frame=%5d q=%2d ",
|
|
frame_number, enc->quality);
|
|
vid = 1;
|
|
}
|
|
/* compute min pts value */
|
|
if (!ist->discard && ist->pts < ti) {
|
|
ti = ist->pts;
|
|
}
|
|
}
|
|
|
|
ti1 = (double)ti / 1000000.0;
|
|
if (ti1 < 0.1)
|
|
ti1 = 0.1;
|
|
bitrate = (double)(total_size * 8) / ti1 / 1000.0;
|
|
|
|
sprintf(buf + strlen(buf),
|
|
"size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
|
|
(double)total_size / 1024, ti1, bitrate);
|
|
|
|
fprintf(stderr, "%s \r", buf);
|
|
fflush(stderr);
|
|
}
|
|
}
|
|
}
|
|
term_exit();
|
|
|
|
/* dump report by using the first video and audio streams */
|
|
{
|
|
char buf[1024];
|
|
AVFormatContext *oc;
|
|
INT64 total_size, ti;
|
|
AVCodecContext *enc;
|
|
int frame_number, vid;
|
|
double bitrate, ti1;
|
|
|
|
oc = output_files[0];
|
|
|
|
total_size = url_ftell(&oc->pb);
|
|
|
|
buf[0] = '\0';
|
|
ti = MAXINT64;
|
|
vid = 0;
|
|
for(i=0;i<nb_ostreams;i++) {
|
|
ost = ost_table[i];
|
|
enc = &ost->st->codec;
|
|
ist = ist_table[ost->source_index];
|
|
if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
|
|
frame_number = ist->frame_number;
|
|
sprintf(buf + strlen(buf), "frame=%5d q=%2d ",
|
|
frame_number, enc->quality);
|
|
vid = 1;
|
|
}
|
|
/* compute min pts value */
|
|
if (!ist->discard && ist->pts < ti) {
|
|
ti = ist->pts;
|
|
}
|
|
}
|
|
|
|
ti1 = ti / 1000000.0;
|
|
if (ti1 < 0.1)
|
|
ti1 = 0.1;
|
|
bitrate = (double)(total_size * 8) / ti1 / 1000.0;
|
|
|
|
sprintf(buf + strlen(buf),
|
|
"size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
|
|
(double)total_size / 1024, ti1, bitrate);
|
|
|
|
fprintf(stderr, "%s \n", buf);
|
|
}
|
|
/* close each encoder */
|
|
for(i=0;i<nb_ostreams;i++) {
|
|
ost = ost_table[i];
|
|
if (ost->encoding_needed) {
|
|
avcodec_close(&ost->st->codec);
|
|
}
|
|
}
|
|
|
|
/* close each decoder */
|
|
for(i=0;i<nb_istreams;i++) {
|
|
ist = ist_table[i];
|
|
if (ist->decoding_needed) {
|
|
avcodec_close(&ist->st->codec);
|
|
}
|
|
}
|
|
|
|
|
|
/* write the trailer if needed and close file */
|
|
for(i=0;i<nb_output_files;i++) {
|
|
os = output_files[i];
|
|
os->format->write_trailer(os);
|
|
}
|
|
/* finished ! */
|
|
|
|
ret = 0;
|
|
fail1:
|
|
free(file_table);
|
|
|
|
if (ist_table) {
|
|
for(i=0;i<nb_istreams;i++) {
|
|
ist = ist_table[i];
|
|
if (ist) {
|
|
free(ist);
|
|
}
|
|
}
|
|
free(ist_table);
|
|
}
|
|
if (ost_table) {
|
|
for(i=0;i<nb_ostreams;i++) {
|
|
ost = ost_table[i];
|
|
if (ost) {
|
|
if (ost->pict_tmp.data[0])
|
|
free(ost->pict_tmp.data[0]);
|
|
if (ost->video_resample)
|
|
img_resample_close(ost->img_resample_ctx);
|
|
if (ost->audio_resample)
|
|
audio_resample_close(ost->resample);
|
|
free(ost);
|
|
}
|
|
}
|
|
free(ost_table);
|
|
}
|
|
return ret;
|
|
fail:
|
|
ret = -ENOMEM;
|
|
goto fail1;
|
|
}
|
|
|
|
#if 0
|
|
int file_read(const char *filename)
|
|
{
|
|
URLContext *h;
|
|
unsigned char buffer[1024];
|
|
int len, i;
|
|
|
|
if (url_open(&h, filename, O_RDONLY) < 0) {
|
|
printf("could not open '%s'\n", filename);
|
|
return -1;
|
|
}
|
|
for(;;) {
|
|
len = url_read(h, buffer, sizeof(buffer));
|
|
if (len <= 0)
|
|
break;
|
|
for(i=0;i<len;i++) putchar(buffer[i]);
|
|
}
|
|
url_close(h);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
void show_licence(void)
|
|
{
|
|
printf(
|
|
"ffmpeg version " FFMPEG_VERSION "\n"
|
|
"Copyright (c) 2000,2001 Gerard Lantau\n"
|
|
"This program is free software; you can redistribute it and/or modify\n"
|
|
"it under the terms of the GNU General Public License as published by\n"
|
|
"the Free Software Foundation; either version 2 of the License, or\n"
|
|
"(at your option) any later version.\n"
|
|
"\n"
|
|
"This program is distributed in the hope that it will be useful,\n"
|
|
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
|
|
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
|
|
"GNU General Public License for more details.\n"
|
|
"\n"
|
|
"You should have received a copy of the GNU General Public License\n"
|
|
"along with this program; if not, write to the Free Software\n"
|
|
"Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n"
|
|
);
|
|
exit(1);
|
|
}
|
|
|
|
void opt_format(const char *arg)
|
|
{
|
|
AVFormat *f;
|
|
f = first_format;
|
|
while (f != NULL && strcmp(f->name, arg) != 0) f = f->next;
|
|
if (f == NULL) {
|
|
fprintf(stderr, "Invalid format: %s\n", arg);
|
|
exit(1);
|
|
}
|
|
file_format = f;
|
|
}
|
|
|
|
void opt_video_bitrate(const char *arg)
|
|
{
|
|
video_bit_rate = atoi(arg) * 1000;
|
|
}
|
|
|
|
void opt_frame_rate(const char *arg)
|
|
{
|
|
frame_rate = (int)(strtod(arg, 0) * FRAME_RATE_BASE);
|
|
}
|
|
|
|
void opt_frame_size(const char *arg)
|
|
{
|
|
parse_image_size(&frame_width, &frame_height, arg);
|
|
if (frame_width <= 0 || frame_height <= 0) {
|
|
fprintf(stderr, "Incorrect frame size\n");
|
|
exit(1);
|
|
}
|
|
if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
|
|
fprintf(stderr, "Frame size must be a multiple of 2\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
void opt_gop_size(const char *arg)
|
|
{
|
|
gop_size = atoi(arg);
|
|
}
|
|
|
|
void opt_qscale(const char *arg)
|
|
{
|
|
video_qscale = atoi(arg);
|
|
if (video_qscale < 0 ||
|
|
video_qscale > 31) {
|
|
fprintf(stderr, "qscale must be >= 1 and <= 31\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
|
|
void opt_audio_bitrate(const char *arg)
|
|
{
|
|
audio_bit_rate = atoi(arg) * 1000;
|
|
}
|
|
|
|
void opt_audio_rate(const char *arg)
|
|
{
|
|
audio_sample_rate = atoi(arg);
|
|
}
|
|
|
|
void opt_audio_channels(const char *arg)
|
|
{
|
|
audio_channels = atoi(arg);
|
|
}
|
|
|
|
#ifdef CONFIG_GRAB
|
|
void opt_video_device(const char *arg)
|
|
{
|
|
v4l_device = strdup(arg);
|
|
}
|
|
|
|
void opt_audio_device(const char *arg)
|
|
{
|
|
audio_device = strdup(arg);
|
|
}
|
|
#endif
|
|
|
|
void opt_audio_codec(const char *arg)
|
|
{
|
|
AVCodec *p;
|
|
|
|
p = first_avcodec;
|
|
while (p) {
|
|
if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
|
|
break;
|
|
p = p->next;
|
|
}
|
|
if (p == NULL) {
|
|
fprintf(stderr, "Unknown audio codec '%s'\n", arg);
|
|
exit(1);
|
|
} else {
|
|
audio_codec_id = p->id;
|
|
}
|
|
}
|
|
|
|
const char *motion_str[] = {
|
|
"zero",
|
|
"full",
|
|
"log",
|
|
"phods",
|
|
NULL,
|
|
};
|
|
|
|
void opt_motion_estimation(const char *arg)
|
|
{
|
|
const char **p;
|
|
p = motion_str;
|
|
for(;;) {
|
|
if (!*p) {
|
|
fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
|
|
exit(1);
|
|
}
|
|
if (!strcmp(*p, arg))
|
|
break;
|
|
p++;
|
|
}
|
|
motion_estimation_method = p - motion_str;
|
|
}
|
|
|
|
void opt_video_codec(const char *arg)
|
|
{
|
|
AVCodec *p;
|
|
|
|
p = first_avcodec;
|
|
while (p) {
|
|
if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
|
|
break;
|
|
p = p->next;
|
|
}
|
|
if (p == NULL) {
|
|
fprintf(stderr, "Unknown video codec '%s'\n", arg);
|
|
exit(1);
|
|
} else {
|
|
video_codec_id = p->id;
|
|
}
|
|
}
|
|
|
|
void opt_map(const char *arg)
|
|
{
|
|
AVStreamMap *m;
|
|
const char *p;
|
|
|
|
p = arg;
|
|
m = &stream_maps[nb_stream_maps++];
|
|
|
|
m->file_index = strtol(arg, (char **)&p, 0);
|
|
if (*p)
|
|
p++;
|
|
m->stream_index = strtol(arg, (char **)&p, 0);
|
|
}
|
|
|
|
void opt_recording_time(const char *arg)
|
|
{
|
|
recording_time = parse_date(arg, 1);
|
|
}
|
|
|
|
/* return the number of packet read to find the codec parameters */
|
|
int find_codec_parameters(AVFormatContext *ic)
|
|
{
|
|
int val, i, count, ret, got_picture, size;
|
|
AVCodec *codec;
|
|
AVCodecContext *enc;
|
|
AVStream *st;
|
|
AVPacket *pkt;
|
|
AVPicture picture;
|
|
AVPacketList *pktl, **ppktl;
|
|
short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
|
|
UINT8 *ptr;
|
|
|
|
count = 0;
|
|
ppktl = &ic->packet_buffer;
|
|
for(;;) {
|
|
for(i=0;i<ic->nb_streams;i++) {
|
|
enc = &ic->streams[i]->codec;
|
|
|
|
switch(enc->codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
val = enc->sample_rate;
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
val = enc->width;
|
|
break;
|
|
default:
|
|
val = 1;
|
|
break;
|
|
}
|
|
/* if no parameters supplied, then we should read it from
|
|
the stream */
|
|
if (val == 0)
|
|
break;
|
|
}
|
|
if (i == ic->nb_streams) {
|
|
ret = count;
|
|
break;
|
|
}
|
|
|
|
if (count == 0) {
|
|
/* open each codec */
|
|
for(i=0;i<ic->nb_streams;i++) {
|
|
st = ic->streams[i];
|
|
codec = avcodec_find_decoder(st->codec.codec_id);
|
|
if (codec == NULL) {
|
|
ret = -1;
|
|
goto the_end;
|
|
}
|
|
avcodec_open(&st->codec, codec);
|
|
}
|
|
}
|
|
pktl = av_mallocz(sizeof(AVPacketList));
|
|
if (!pktl) {
|
|
ret = -1;
|
|
break;
|
|
}
|
|
|
|
/* add the packet in the buffered packet list */
|
|
*ppktl = pktl;
|
|
ppktl = &pktl->next;
|
|
|
|
pkt = &pktl->pkt;
|
|
if (ic->format->read_packet(ic, pkt) < 0) {
|
|
ret = -1;
|
|
break;
|
|
}
|
|
st = ic->streams[pkt->stream_index];
|
|
|
|
/* decode the data and update codec parameters */
|
|
ptr = pkt->data;
|
|
size = pkt->size;
|
|
while (size > 0) {
|
|
switch(st->codec.codec_type) {
|
|
case CODEC_TYPE_VIDEO:
|
|
ret = avcodec_decode_video(&st->codec, &picture, &got_picture, ptr, size);
|
|
break;
|
|
case CODEC_TYPE_AUDIO:
|
|
ret = avcodec_decode_audio(&st->codec, samples, &got_picture, ptr, size);
|
|
break;
|
|
default:
|
|
ret = -1;
|
|
break;
|
|
}
|
|
if (ret < 0) {
|
|
ret = -1;
|
|
goto the_end;
|
|
}
|
|
if (got_picture)
|
|
break;
|
|
ptr += ret;
|
|
size -= ret;
|
|
}
|
|
|
|
count++;
|
|
}
|
|
the_end:
|
|
if (count > 0) {
|
|
/* close each codec */
|
|
for(i=0;i<ic->nb_streams;i++) {
|
|
st = ic->streams[i];
|
|
avcodec_close(&st->codec);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int filename_number_test(const char *filename)
|
|
{
|
|
char buf[1024];
|
|
|
|
if (get_frame_filename(buf, sizeof(buf), filename, 1) < 0) {
|
|
fprintf(stderr, "%s: Incorrect image filename syntax.\n"
|
|
"Use '%%d' to specify the image number:\n"
|
|
" for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
|
|
" for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
|
|
filename);
|
|
return -1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void opt_input_file(const char *filename)
|
|
{
|
|
AVFormatContext *ic;
|
|
AVFormatParameters params, *ap = ¶ms;
|
|
URLFormat url_format;
|
|
AVFormat *fmt;
|
|
int err, i, ret;
|
|
|
|
ic = av_mallocz(sizeof(AVFormatContext));
|
|
strcpy(ic->filename, filename);
|
|
/* first format guess to know if we must open file */
|
|
fmt = file_format;
|
|
if (!fmt)
|
|
fmt = guess_format(NULL, filename, NULL);
|
|
|
|
if (fmt == NULL || !(fmt->flags & AVFMT_NOFILE)) {
|
|
/* open file */
|
|
if (url_fopen(&ic->pb, filename, URL_RDONLY) < 0) {
|
|
fprintf(stderr, "Could not open '%s'\n", filename);
|
|
exit(1);
|
|
}
|
|
|
|
/* find format and set default parameters */
|
|
fmt = file_format;
|
|
err = url_getformat(url_fileno(&ic->pb), &url_format);
|
|
if (err >= 0) {
|
|
if (!fmt)
|
|
fmt = guess_format(url_format.format_name, NULL, NULL);
|
|
ap->sample_rate = url_format.sample_rate;
|
|
ap->frame_rate = url_format.frame_rate;
|
|
ap->channels = url_format.channels;
|
|
ap->width = url_format.width;
|
|
ap->height = url_format.height;
|
|
ap->pix_fmt = url_format.pix_fmt;
|
|
} else {
|
|
if (!fmt)
|
|
fmt = guess_format(NULL, filename, NULL);
|
|
memset(ap, 0, sizeof(*ap));
|
|
}
|
|
} else {
|
|
memset(ap, 0, sizeof(*ap));
|
|
}
|
|
|
|
if (!fmt || !fmt->read_header) {
|
|
fprintf(stderr, "%s: Unknown file format\n", filename);
|
|
exit(1);
|
|
}
|
|
ic->format = fmt;
|
|
|
|
/* get default parameters from command line */
|
|
if (!ap->sample_rate)
|
|
ap->sample_rate = audio_sample_rate;
|
|
if (!ap->channels)
|
|
ap->channels = audio_channels;
|
|
|
|
if (!ap->frame_rate)
|
|
ap->frame_rate = frame_rate;
|
|
if (!ap->width)
|
|
ap->width = frame_width;
|
|
if (!ap->height)
|
|
ap->height = frame_height;
|
|
|
|
/* check filename in case of an image number is expected */
|
|
if (ic->format->flags & AVFMT_NEEDNUMBER) {
|
|
if (filename_number_test(ic->filename) < 0)
|
|
exit(1);
|
|
}
|
|
|
|
err = ic->format->read_header(ic, ap);
|
|
if (err < 0) {
|
|
fprintf(stderr, "%s: Error while parsing header\n", filename);
|
|
exit(1);
|
|
}
|
|
|
|
/* If not enough info for the codecs, we decode the first frames
|
|
to get it. (used in mpeg case for example) */
|
|
ret = find_codec_parameters(ic);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "%s: could not find codec parameters\n", filename);
|
|
exit(1);
|
|
}
|
|
|
|
/* update the current parameters so that they match the one of the input stream */
|
|
for(i=0;i<ic->nb_streams;i++) {
|
|
AVCodecContext *enc = &ic->streams[i]->codec;
|
|
switch(enc->codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
audio_channels = enc->channels;
|
|
audio_sample_rate = enc->sample_rate;
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
frame_height = enc->height;
|
|
frame_width = enc->width;
|
|
frame_rate = enc->frame_rate;
|
|
break;
|
|
}
|
|
}
|
|
|
|
input_files[nb_input_files] = ic;
|
|
/* dump the file content */
|
|
dump_format(ic, nb_input_files, filename, 0);
|
|
nb_input_files++;
|
|
file_format = NULL;
|
|
}
|
|
|
|
void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
|
|
{
|
|
int has_video, has_audio, i, j;
|
|
AVFormatContext *ic;
|
|
|
|
has_video = 0;
|
|
has_audio = 0;
|
|
for(j=0;j<nb_input_files;j++) {
|
|
ic = input_files[j];
|
|
for(i=0;i<ic->nb_streams;i++) {
|
|
AVCodecContext *enc = &ic->streams[i]->codec;
|
|
switch(enc->codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
has_audio = 1;
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
has_video = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
*has_video_ptr = has_video;
|
|
*has_audio_ptr = has_audio;
|
|
}
|
|
|
|
void opt_output_file(const char *filename)
|
|
{
|
|
AVStream *st;
|
|
AVFormatContext *oc;
|
|
int use_video, use_audio, nb_streams, input_has_video, input_has_audio;
|
|
int codec_id;
|
|
|
|
if (!strcmp(filename, "-"))
|
|
filename = "pipe:";
|
|
|
|
oc = av_mallocz(sizeof(AVFormatContext));
|
|
|
|
if (!file_format) {
|
|
file_format = guess_format(NULL, filename, NULL);
|
|
if (!file_format)
|
|
file_format = &mpeg_mux_format;
|
|
}
|
|
|
|
oc->format = file_format;
|
|
|
|
if (!strcmp(file_format->name, "ffm") &&
|
|
strstart(filename, "http:", NULL)) {
|
|
/* special case for files sent to ffserver: we get the stream
|
|
parameters from ffserver */
|
|
if (read_ffserver_streams(oc, filename) < 0) {
|
|
fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
|
|
exit(1);
|
|
}
|
|
} else {
|
|
use_video = file_format->video_codec != CODEC_ID_NONE;
|
|
use_audio = file_format->audio_codec != CODEC_ID_NONE;
|
|
|
|
/* disable if no corresponding type found and at least one
|
|
input file */
|
|
if (nb_input_files > 0) {
|
|
check_audio_video_inputs(&input_has_video, &input_has_audio);
|
|
if (!input_has_video)
|
|
use_video = 0;
|
|
if (!input_has_audio)
|
|
use_audio = 0;
|
|
}
|
|
|
|
/* manual disable */
|
|
if (audio_disable) {
|
|
use_audio = 0;
|
|
}
|
|
if (video_disable) {
|
|
use_video = 0;
|
|
}
|
|
|
|
nb_streams = 0;
|
|
if (use_video) {
|
|
AVCodecContext *video_enc;
|
|
|
|
st = av_mallocz(sizeof(AVStream));
|
|
if (!st) {
|
|
fprintf(stderr, "Could not alloc stream\n");
|
|
exit(1);
|
|
}
|
|
video_enc = &st->codec;
|
|
|
|
codec_id = file_format->video_codec;
|
|
if (video_codec_id != CODEC_ID_NONE)
|
|
codec_id = video_codec_id;
|
|
|
|
video_enc->codec_id = codec_id;
|
|
video_enc->codec_type = CODEC_TYPE_VIDEO;
|
|
|
|
video_enc->bit_rate = video_bit_rate;
|
|
video_enc->frame_rate = frame_rate;
|
|
|
|
video_enc->width = frame_width;
|
|
video_enc->height = frame_height;
|
|
if (!intra_only)
|
|
video_enc->gop_size = gop_size;
|
|
else
|
|
video_enc->gop_size = 0;
|
|
if (video_qscale || same_quality) {
|
|
video_enc->flags |= CODEC_FLAG_QSCALE;
|
|
video_enc->quality = video_qscale;
|
|
}
|
|
/* XXX: need to find a way to set codec parameters */
|
|
if (oc->format == &ppm_format ||
|
|
oc->format == &ppmpipe_format) {
|
|
video_enc->pix_fmt = PIX_FMT_RGB24;
|
|
}
|
|
|
|
oc->streams[nb_streams] = st;
|
|
nb_streams++;
|
|
}
|
|
|
|
if (use_audio) {
|
|
AVCodecContext *audio_enc;
|
|
|
|
st = av_mallocz(sizeof(AVStream));
|
|
if (!st) {
|
|
fprintf(stderr, "Could not alloc stream\n");
|
|
exit(1);
|
|
}
|
|
audio_enc = &st->codec;
|
|
codec_id = file_format->audio_codec;
|
|
if (audio_codec_id != CODEC_ID_NONE)
|
|
codec_id = audio_codec_id;
|
|
audio_enc->codec_id = codec_id;
|
|
audio_enc->codec_type = CODEC_TYPE_AUDIO;
|
|
|
|
audio_enc->bit_rate = audio_bit_rate;
|
|
audio_enc->sample_rate = audio_sample_rate;
|
|
audio_enc->channels = audio_channels;
|
|
oc->streams[nb_streams] = st;
|
|
nb_streams++;
|
|
}
|
|
|
|
oc->nb_streams = nb_streams;
|
|
|
|
if (!nb_streams) {
|
|
fprintf(stderr, "No audio or video streams available\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (str_title)
|
|
nstrcpy(oc->title, sizeof(oc->title), str_title);
|
|
if (str_author)
|
|
nstrcpy(oc->author, sizeof(oc->author), str_author);
|
|
if (str_copyright)
|
|
nstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright);
|
|
if (str_comment)
|
|
nstrcpy(oc->comment, sizeof(oc->comment), str_comment);
|
|
}
|
|
|
|
output_files[nb_output_files] = oc;
|
|
/* dump the file content */
|
|
dump_format(oc, nb_output_files, filename, 1);
|
|
nb_output_files++;
|
|
|
|
strcpy(oc->filename, filename);
|
|
|
|
/* check filename in case of an image number is expected */
|
|
if (oc->format->flags & AVFMT_NEEDNUMBER) {
|
|
if (filename_number_test(oc->filename) < 0)
|
|
exit(1);
|
|
}
|
|
|
|
if (!(oc->format->flags & AVFMT_NOFILE)) {
|
|
/* test if it already exists to avoid loosing precious files */
|
|
if (!file_overwrite &&
|
|
(strchr(filename, ':') == NULL ||
|
|
strstart(filename, "file:", NULL))) {
|
|
if (url_exist(filename)) {
|
|
int c;
|
|
|
|
printf("File '%s' already exists. Overwrite ? [y/N] ", filename);
|
|
fflush(stdout);
|
|
c = getchar();
|
|
if (toupper(c) != 'Y') {
|
|
fprintf(stderr, "Not overwriting - exiting\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* open the file */
|
|
if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
|
|
fprintf(stderr, "Could not open '%s'\n", filename);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
/* reset some options */
|
|
file_format = NULL;
|
|
audio_disable = 0;
|
|
video_disable = 0;
|
|
audio_codec_id = CODEC_ID_NONE;
|
|
video_codec_id = CODEC_ID_NONE;
|
|
}
|
|
|
|
#ifdef CONFIG_GRAB
|
|
|
|
/* prepare dummy protocols for grab */
|
|
void prepare_grab(void)
|
|
{
|
|
int has_video, has_audio, i, j;
|
|
AVFormatContext *oc;
|
|
AVFormatContext *ic;
|
|
AVFormatParameters ap1, *ap = &ap1;
|
|
|
|
/* see if audio/video inputs are needed */
|
|
has_video = 0;
|
|
has_audio = 0;
|
|
memset(ap, 0, sizeof(*ap));
|
|
for(j=0;j<nb_output_files;j++) {
|
|
oc = output_files[j];
|
|
for(i=0;i<oc->nb_streams;i++) {
|
|
AVCodecContext *enc = &oc->streams[i]->codec;
|
|
switch(enc->codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
if (enc->sample_rate > ap->sample_rate)
|
|
ap->sample_rate = enc->sample_rate;
|
|
if (enc->channels > ap->channels)
|
|
ap->channels = enc->channels;
|
|
has_audio = 1;
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
if (enc->width > ap->width)
|
|
ap->width = enc->width;
|
|
if (enc->height > ap->height)
|
|
ap->height = enc->height;
|
|
if (enc->frame_rate > ap->frame_rate)
|
|
ap->frame_rate = enc->frame_rate;
|
|
has_video = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (has_video == 0 && has_audio == 0) {
|
|
fprintf(stderr, "Output file must have at least one audio or video stream\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (has_video) {
|
|
ic = av_open_input_file("", "video_grab_device", 0, ap);
|
|
if (!ic) {
|
|
fprintf(stderr, "Could not open video grab device\n");
|
|
exit(1);
|
|
}
|
|
input_files[nb_input_files] = ic;
|
|
dump_format(ic, nb_input_files, v4l_device, 0);
|
|
nb_input_files++;
|
|
}
|
|
if (has_audio) {
|
|
ic = av_open_input_file("", "audio_device", 0, ap);
|
|
if (!ic) {
|
|
fprintf(stderr, "Could not open audio grab device\n");
|
|
exit(1);
|
|
}
|
|
input_files[nb_input_files] = ic;
|
|
dump_format(ic, nb_input_files, audio_device, 0);
|
|
nb_input_files++;
|
|
}
|
|
}
|
|
|
|
#else
|
|
|
|
void prepare_grab(void)
|
|
{
|
|
fprintf(stderr, "Must supply at least one input file\n");
|
|
exit(1);
|
|
}
|
|
|
|
#endif
|
|
|
|
/* open the necessary output devices for playing */
|
|
void prepare_play(void)
|
|
{
|
|
file_format = guess_format("audio_device", NULL, NULL);
|
|
if (!file_format) {
|
|
fprintf(stderr, "Could not find audio device\n");
|
|
exit(1);
|
|
}
|
|
|
|
opt_output_file(audio_device);
|
|
}
|
|
|
|
|
|
#ifndef CONFIG_WIN32
|
|
INT64 getutime(void)
|
|
{
|
|
struct rusage rusage;
|
|
|
|
getrusage(RUSAGE_SELF, &rusage);
|
|
return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
|
|
}
|
|
#else
|
|
INT64 getutime(void)
|
|
{
|
|
return gettime();
|
|
}
|
|
#endif
|
|
|
|
void show_formats(void)
|
|
{
|
|
AVFormat *f;
|
|
URLProtocol *up;
|
|
AVCodec *p;
|
|
const char **pp;
|
|
|
|
printf("File formats:\n");
|
|
printf(" Encoding:");
|
|
for(f = first_format; f != NULL; f = f->next) {
|
|
if (f->write_header)
|
|
printf(" %s", f->name);
|
|
}
|
|
printf("\n");
|
|
printf(" Decoding:");
|
|
for(f = first_format; f != NULL; f = f->next) {
|
|
if (f->read_header)
|
|
printf(" %s", f->name);
|
|
}
|
|
printf("\n");
|
|
|
|
printf("Codecs:\n");
|
|
printf(" Encoders:");
|
|
for(p = first_avcodec; p != NULL; p = p->next) {
|
|
if (p->encode)
|
|
printf(" %s", p->name);
|
|
}
|
|
printf("\n");
|
|
|
|
printf(" Decoders:");
|
|
for(p = first_avcodec; p != NULL; p = p->next) {
|
|
if (p->decode)
|
|
printf(" %s", p->name);
|
|
}
|
|
printf("\n");
|
|
|
|
printf("Supported file protocols:");
|
|
for(up = first_protocol; up != NULL; up = up->next)
|
|
printf(" %s:", up->name);
|
|
printf("\n");
|
|
|
|
printf("Frame size abbreviations: sqcif qcif cif 4cif\n");
|
|
printf("Motion estimation methods:");
|
|
pp = motion_str;
|
|
while (*pp) {
|
|
printf(" %s", *pp);
|
|
if ((pp - motion_str) == ME_ZERO)
|
|
printf("(fastest)");
|
|
else if ((pp - motion_str) == ME_FULL)
|
|
printf("(slowest)");
|
|
else if ((pp - motion_str) == ME_LOG)
|
|
printf("(default)");
|
|
pp++;
|
|
}
|
|
printf("\n");
|
|
exit(1);
|
|
}
|
|
|
|
void show_help(void)
|
|
{
|
|
const char *prog;
|
|
const OptionDef *po;
|
|
int i, expert;
|
|
|
|
prog = do_play ? "ffplay" : "ffmpeg";
|
|
|
|
printf("%s version " FFMPEG_VERSION ", Copyright (c) 2000, 2001 Gerard Lantau\n",
|
|
prog);
|
|
|
|
if (!do_play) {
|
|
printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n"
|
|
"Hyper fast MPEG1/MPEG4/H263/RV and AC3/MPEG audio encoder\n");
|
|
} else {
|
|
printf("usage: ffplay [options] input_file...\n"
|
|
"Simple audio player\n");
|
|
}
|
|
|
|
printf("\n"
|
|
"Main options are:\n");
|
|
for(i=0;i<2;i++) {
|
|
if (i == 1)
|
|
printf("\nAdvanced options are:\n");
|
|
for(po = options; po->name != NULL; po++) {
|
|
char buf[64];
|
|
expert = (po->flags & OPT_EXPERT) != 0;
|
|
if (expert == i) {
|
|
strcpy(buf, po->name);
|
|
if (po->flags & HAS_ARG) {
|
|
strcat(buf, " ");
|
|
strcat(buf, po->argname);
|
|
}
|
|
printf("-%-17s %s\n", buf, po->help);
|
|
}
|
|
}
|
|
}
|
|
|
|
exit(1);
|
|
}
|
|
|
|
const OptionDef options[] = {
|
|
{ "L", 0, {(void*)show_licence}, "show license" },
|
|
{ "h", 0, {(void*)show_help}, "show help" },
|
|
{ "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
|
|
{ "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
|
|
{ "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
|
|
{ "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
|
|
{ "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" },
|
|
{ "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
|
|
{ "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
|
|
{ "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },
|
|
{ "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" },
|
|
{ "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" },
|
|
/* video options */
|
|
{ "b", HAS_ARG, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" },
|
|
{ "r", HAS_ARG, {(void*)opt_frame_rate}, "set frame rate (in Hz)", "rate" },
|
|
{ "s", HAS_ARG, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
|
|
{ "g", HAS_ARG | OPT_EXPERT, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" },
|
|
{ "intra", OPT_BOOL | OPT_EXPERT, {(void*)&intra_only}, "use only intra frames"},
|
|
{ "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
|
|
{ "qscale", HAS_ARG | OPT_EXPERT, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" },
|
|
#ifdef CONFIG_GRAB
|
|
{ "vd", HAS_ARG | OPT_EXPERT, {(void*)opt_video_device}, "set video device", "device" },
|
|
#endif
|
|
{ "vcodec", HAS_ARG | OPT_EXPERT, {(void*)opt_video_codec}, "force video codec", "codec" },
|
|
{ "me", HAS_ARG | OPT_EXPERT, {(void*)opt_motion_estimation}, "set motion estimation method",
|
|
"method" },
|
|
{ "sameq", OPT_BOOL, {(void*)&same_quality},
|
|
"use same video quality as source (implies VBR)" },
|
|
/* audio options */
|
|
{ "ab", HAS_ARG, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },
|
|
{ "ar", HAS_ARG, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
|
|
{ "ac", HAS_ARG, {(void*)opt_audio_channels}, "set number of audio channels", "channels" },
|
|
{ "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
|
|
#ifdef CONFIG_GRAB
|
|
{ "ad", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_device}, "set audio device", "device" },
|
|
#endif
|
|
{ "acodec", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_codec}, "force audio codec", "codec" },
|
|
{ "deinterlace", OPT_BOOL | OPT_EXPERT, {(void*)&do_deinterlace},
|
|
"deinterlace pictures" },
|
|
{ "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
|
|
"add timings for benchmarking" },
|
|
{ "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
|
|
"dump each input packet" },
|
|
|
|
{ NULL, },
|
|
};
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int optindex, i;
|
|
const char *opt, *arg;
|
|
const OptionDef *po;
|
|
INT64 ti;
|
|
|
|
register_all();
|
|
|
|
/* detect if invoked as player */
|
|
i = strlen(argv[0]);
|
|
if (i >= 6 && !strcmp(argv[0] + i - 6, "ffplay"))
|
|
do_play = 1;
|
|
|
|
if (argc <= 1)
|
|
show_help();
|
|
|
|
/* parse options */
|
|
optindex = 1;
|
|
while (optindex < argc) {
|
|
opt = argv[optindex++];
|
|
|
|
if (opt[0] == '-' && opt[1] != '\0') {
|
|
po = options;
|
|
while (po->name != NULL) {
|
|
if (!strcmp(opt + 1, po->name))
|
|
break;
|
|
po++;
|
|
}
|
|
if (!po->name) {
|
|
fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
|
|
exit(1);
|
|
}
|
|
arg = NULL;
|
|
if (po->flags & HAS_ARG)
|
|
arg = argv[optindex++];
|
|
if (po->flags & OPT_STRING) {
|
|
char *str;
|
|
str = strdup(arg);
|
|
*po->u.str_arg = str;
|
|
} else if (po->flags & OPT_BOOL) {
|
|
*po->u.int_arg = 1;
|
|
} else {
|
|
po->u.func_arg(arg);
|
|
}
|
|
} else {
|
|
if (!do_play) {
|
|
opt_output_file(opt);
|
|
} else {
|
|
opt_input_file(opt);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if (!do_play) {
|
|
/* file converter / grab */
|
|
if (nb_output_files <= 0) {
|
|
fprintf(stderr, "Must supply at least one output file\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (nb_input_files == 0) {
|
|
prepare_grab();
|
|
}
|
|
} else {
|
|
/* player */
|
|
if (nb_input_files <= 0) {
|
|
fprintf(stderr, "Must supply at least one input file\n");
|
|
exit(1);
|
|
}
|
|
prepare_play();
|
|
}
|
|
|
|
ti = getutime();
|
|
av_encode(output_files, nb_output_files, input_files, nb_input_files,
|
|
stream_maps, nb_stream_maps);
|
|
ti = getutime() - ti;
|
|
if (do_benchmark) {
|
|
printf("bench: utime=%0.3fs\n", ti / 1000000.0);
|
|
}
|
|
|
|
/* close files */
|
|
for(i=0;i<nb_output_files;i++) {
|
|
if (!(output_files[i]->format->flags & AVFMT_NOFILE))
|
|
url_fclose(&output_files[i]->pb);
|
|
}
|
|
for(i=0;i<nb_input_files;i++) {
|
|
if (!(input_files[i]->format->flags & AVFMT_NOFILE))
|
|
url_fclose(&input_files[i]->pb);
|
|
}
|
|
|
|
return 0;
|
|
}
|