3 * Copyright (c) 2000-2003 Fabrice Bellard
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #define HAVE_AV_CONFIG_H
22 #include "framehook.h"
24 #include "os_support.h"
29 #include <sys/ioctl.h>
32 #include <sys/resource.h>
36 #include <sys/types.h>
37 #include <sys/select.h>
45 #if !defined(INFINITY) && defined(HUGE_VAL)
46 #define INFINITY HUGE_VAL
49 #define MAXINT64 int64_t_C(0x7fffffffffffffff)
51 /* select an input stream for an output stream */
52 typedef struct AVStreamMap {
57 extern const OptionDef options[];
63 static AVFormatContext *input_files[MAX_FILES];
64 static int nb_input_files = 0;
66 static AVFormatContext *output_files[MAX_FILES];
67 static int nb_output_files = 0;
69 static AVStreamMap stream_maps[MAX_FILES];
70 static int nb_stream_maps;
72 static AVInputFormat *file_iformat;
73 static AVOutputFormat *file_oformat;
74 static AVImageFormat *image_format;
75 static int frame_width = 160;
76 static int frame_height = 128;
77 static float frame_aspect_ratio = 0;
78 static enum PixelFormat frame_pix_fmt = PIX_FMT_YUV420P;
79 static int frame_topBand = 0;
80 static int frame_bottomBand = 0;
81 static int frame_leftBand = 0;
82 static int frame_rightBand = 0;
83 static int frame_rate = 25;
84 static int frame_rate_base = 1;
85 static int video_bit_rate = 200*1000;
86 static int video_bit_rate_tolerance = 4000*1000;
87 static int video_qscale = 0;
88 static int video_qmin = 2;
89 static int video_qmax = 31;
90 static int video_mb_qmin = 2;
91 static int video_mb_qmax = 31;
92 static int video_qdiff = 3;
93 static float video_qblur = 0.5;
94 static float video_qcomp = 0.5;
95 #if 0 //experimental, (can be removed)
96 static float video_rc_qsquish=1.0;
97 static float video_rc_qmod_amp=0;
98 static int video_rc_qmod_freq=0;
100 static char *video_rc_override_string=NULL;
101 static char *video_rc_eq="tex^qComp";
102 static int video_rc_buffer_size=0;
103 static float video_rc_buffer_aggressivity=1.0;
104 static int video_rc_max_rate=0;
105 static int video_rc_min_rate=0;
106 static float video_rc_initial_cplx=0;
107 static float video_b_qfactor = 1.25;
108 static float video_b_qoffset = 1.25;
109 static float video_i_qfactor = -0.8;
110 static float video_i_qoffset = 0.0;
111 static int me_method = ME_EPZS;
112 static int video_disable = 0;
113 static int video_codec_id = CODEC_ID_NONE;
114 static int same_quality = 0;
115 static int b_frames = 0;
116 static int use_hq = 0;
117 static int use_4mv = 0;
119 static int use_aic = 0;
120 static int use_umv = 0;
122 static int do_deinterlace = 0;
123 static int workaround_bugs = FF_BUG_AUTODETECT;
124 static int error_resilience = 2;
125 static int error_concealment = 3;
126 static int dct_algo = 0;
127 static int idct_algo = 0;
128 static int use_part = 0;
129 static int packet_size = 0;
130 static int strict = 0;
131 static int debug = 0;
133 static int gop_size = 12;
134 static int intra_only = 0;
135 static int audio_sample_rate = 44100;
136 static int audio_bit_rate = 64000;
137 static int audio_disable = 0;
138 static int audio_channels = 1;
139 static int audio_codec_id = CODEC_ID_NONE;
141 static int64_t recording_time = 0;
142 static int file_overwrite = 0;
143 static char *str_title = NULL;
144 static char *str_author = NULL;
145 static char *str_copyright = NULL;
146 static char *str_comment = NULL;
147 static int do_benchmark = 0;
148 static int do_hex_dump = 0;
149 static int do_psnr = 0;
150 static int do_vstats = 0;
151 static int do_pass = 0;
152 static int bitexact = 0;
153 static char *pass_logfilename = NULL;
154 static int audio_stream_copy = 0;
155 static int video_stream_copy = 0;
157 static int rate_emu = 0;
159 static char *video_grab_format = "video4linux";
160 static char *video_device = NULL;
161 static int video_channel = 0;
163 static char *audio_grab_format = "audio_device";
164 static char *audio_device = NULL;
166 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
168 typedef struct AVOutputStream {
169 int file_index; /* file index */
170 int index; /* stream index in the output file */
171 int source_index; /* AVInputStream index */
172 AVStream *st; /* stream in the output file */
173 int encoding_needed; /* true if encoding needed for this stream */
175 /* input pts and corresponding output pts
178 double sync_ipts_offset;
181 int video_resample; /* video_resample and video_crop are mutually exclusive */
182 AVPicture pict_tmp; /* temporary image for resampling */
183 ImgReSampleContext *img_resample_ctx; /* for image resampling */
185 int video_crop; /* video_resample and video_crop are mutually exclusive */
186 int topBand; /* cropping area sizes */
191 ReSampleContext *resample; /* for audio resampling */
192 FifoBuffer fifo; /* for compression: one audio fifo per codec */
196 typedef struct AVInputStream {
200 int discard; /* true if stream data should be discarded */
201 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
202 int64_t sample_index; /* current sample */
203 int frame_decoded; /* true if a video or audio frame has been decoded */
205 int64_t start; /* time when read started */
206 unsigned long frame; /* current frame */
209 typedef struct AVInputFile {
210 int eof_reached; /* true if eof reached */
211 int ist_index; /* index of first stream in ist_table */
212 int buffer_size; /* current total buffer size */
213 int buffer_size_max; /* buffer size at which we consider we can stop
215 int nb_streams; /* nb streams we are aware of */
220 /* init terminal so that we can grab keys */
221 static struct termios oldtty;
223 static void term_exit(void)
225 tcsetattr (0, TCSANOW, &oldtty);
228 static volatile sig_atomic_t received_sigterm = 0;
231 sigterm_handler(int sig)
233 received_sigterm = sig;
237 static void term_init(void)
244 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
245 |INLCR|IGNCR|ICRNL|IXON);
246 tty.c_oflag |= OPOST;
247 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
248 tty.c_cflag &= ~(CSIZE|PARENB);
253 tcsetattr (0, TCSANOW, &tty);
255 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
256 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
257 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
259 register a function to be called at normal program termination
262 #ifdef CONFIG_BEOS_NETSERVER
263 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
267 /* read a key without blocking */
268 static int read_key(void)
272 #ifndef CONFIG_BEOS_NETSERVER
280 n = select(1, &rfds, NULL, NULL, &tv);
294 /* no interactive support */
295 static void term_exit(void)
299 static void term_init(void)
303 static int read_key(void)
310 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
315 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
318 /* copy stream format */
319 s->nb_streams = ic->nb_streams;
320 for(i=0;i<ic->nb_streams;i++) {
323 st = av_mallocz(sizeof(AVFormatContext));
324 memcpy(st, ic->streams[i], sizeof(AVStream));
328 av_close_input_file(ic);
332 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
334 static void do_audio_out(AVFormatContext *s,
337 unsigned char *buf, int size)
340 static uint8_t *audio_buf = NULL;
341 static uint8_t *audio_out = NULL;
342 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
344 int size_out, frame_bytes, ret;
347 /* SC: dynamic allocation of buffers */
349 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
351 audio_out = av_malloc(audio_out_size);
352 if (!audio_buf || !audio_out)
353 return; /* Should signal an error ! */
356 enc = &ost->st->codec;
358 if (ost->audio_resample) {
360 size_out = audio_resample(ost->resample,
361 (short *)buftmp, (short *)buf,
362 size / (ist->st->codec.channels * 2));
363 size_out = size_out * enc->channels * 2;
369 /* now encode as many frames as possible */
370 if (enc->frame_size > 1) {
371 /* output resampled raw samples */
372 fifo_write(&ost->fifo, buftmp, size_out,
375 frame_bytes = enc->frame_size * 2 * enc->channels;
377 while (fifo_read(&ost->fifo, audio_buf, frame_bytes,
378 &ost->fifo.rptr) == 0) {
379 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
381 av_write_frame(s, ost->index, audio_out, ret);
384 /* output a pcm frame */
385 /* XXX: change encoding codec API to avoid this ? */
386 switch(enc->codec->id) {
387 case CODEC_ID_PCM_S16LE:
388 case CODEC_ID_PCM_S16BE:
389 case CODEC_ID_PCM_U16LE:
390 case CODEC_ID_PCM_U16BE:
393 size_out = size_out >> 1;
396 ret = avcodec_encode_audio(enc, audio_out, size_out,
398 av_write_frame(s, ost->index, audio_out, ret);
402 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
406 AVPicture picture_tmp;
409 dec = &ist->st->codec;
411 /* deinterlace : must be done before any resize */
412 if (do_deinterlace) {
415 /* create temporary picture */
416 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
417 buf = av_malloc(size);
421 picture2 = &picture_tmp;
422 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
424 if (avpicture_deinterlace(picture2, picture,
425 dec->pix_fmt, dec->width, dec->height) < 0) {
426 /* if error, do not deinterlace */
435 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height);
437 if (picture != picture2)
438 *picture = *picture2;
442 /* we begin to correct av delay at this threshold */
443 #define AV_DELAY_MAX 0.100
445 static void do_video_out(AVFormatContext *s,
448 AVPicture *in_picture,
449 int *frame_size, AVOutputStream *audio_sync)
451 int nb_frames, i, ret;
452 AVPicture *final_picture, *formatted_picture;
453 AVPicture picture_format_temp, picture_crop_temp;
454 static uint8_t *video_buffer;
455 uint8_t *buf = NULL, *buf1 = NULL;
456 AVCodecContext *enc, *dec;
458 #define VIDEO_BUFFER_SIZE (1024*1024)
460 enc = &ost->st->codec;
461 dec = &ist->st->codec;
463 /* by default, we output a single frame */
468 /* NOTE: the A/V sync is always done by considering the audio is
469 the master clock. It is suffisant for transcoding or playing,
470 but not for the general case */
472 /* compute the A-V delay and duplicate/remove frames if needed */
473 double adelta, vdelta, apts, vpts, av_delay;
475 if (audio_sync->sync_ipts != AV_NOPTS_VALUE &&
476 ost->sync_ipts != AV_NOPTS_VALUE) {
478 adelta = (double)(ost->st->pts.val - audio_sync->sync_opts) *
479 s->pts_num / s->pts_den;
480 apts = audio_sync->sync_ipts + adelta;
482 vdelta = (double)(ost->st->pts.val - ost->sync_opts) *
483 s->pts_num / s->pts_den;
484 vpts = ost->sync_ipts + vdelta;
486 av_delay = apts - vpts;
487 // printf("delay=%f\n", av_delay);
488 if (av_delay < -AV_DELAY_MAX)
490 else if (av_delay > AV_DELAY_MAX)
496 if (ost->sync_ipts != AV_NOPTS_VALUE) {
497 vdelta = (double)(ost->st->pts.val) * s->pts_num / s->pts_den - (ost->sync_ipts - ost->sync_ipts_offset);
498 if (vdelta < 100 && vdelta > -100 && ost->sync_ipts_offset) {
499 if (vdelta < -AV_DELAY_MAX)
501 else if (vdelta > AV_DELAY_MAX)
504 ost->sync_ipts_offset -= vdelta;
505 if (!ost->sync_ipts_offset)
506 ost->sync_ipts_offset = 0.000001; /* one microsecond */
511 static char *action[] = { "drop frame", "copy frame", "dup frame" };
512 printf("Input PTS %12.6f, output PTS %12.6f: %s\n",
513 (double) ost->sync_ipts, (double) ost->st->pts.val * s->pts_num / s->pts_den,
523 video_buffer = av_malloc(VIDEO_BUFFER_SIZE);
527 /* convert pixel format if needed */
528 if (enc->pix_fmt != dec->pix_fmt) {
531 /* create temporary picture */
532 size = avpicture_get_size(enc->pix_fmt, dec->width, dec->height);
533 buf = av_malloc(size);
536 formatted_picture = &picture_format_temp;
537 avpicture_fill(formatted_picture, buf, enc->pix_fmt, dec->width, dec->height);
539 if (img_convert(formatted_picture, enc->pix_fmt,
540 in_picture, dec->pix_fmt,
541 dec->width, dec->height) < 0) {
542 fprintf(stderr, "pixel format conversion not handled\n");
546 formatted_picture = in_picture;
549 /* XXX: resampling could be done before raw format convertion in
550 some cases to go faster */
551 /* XXX: only works for YUV420P */
552 if (ost->video_resample) {
553 final_picture = &ost->pict_tmp;
554 img_resample(ost->img_resample_ctx, final_picture, formatted_picture);
555 } else if (ost->video_crop) {
556 picture_crop_temp.data[0] = formatted_picture->data[0] +
557 (ost->topBand * formatted_picture->linesize[0]) + ost->leftBand;
559 picture_crop_temp.data[1] = formatted_picture->data[1] +
560 ((ost->topBand >> 1) * formatted_picture->linesize[1]) +
561 (ost->leftBand >> 1);
563 picture_crop_temp.data[2] = formatted_picture->data[2] +
564 ((ost->topBand >> 1) * formatted_picture->linesize[2]) +
565 (ost->leftBand >> 1);
567 picture_crop_temp.linesize[0] = formatted_picture->linesize[0];
568 picture_crop_temp.linesize[1] = formatted_picture->linesize[1];
569 picture_crop_temp.linesize[2] = formatted_picture->linesize[2];
570 final_picture = &picture_crop_temp;
572 final_picture = formatted_picture;
574 /* duplicates frame if needed */
575 /* XXX: pb because no interleaving */
576 for(i=0;i<nb_frames;i++) {
577 if (s->oformat->flags & AVFMT_RAWPICTURE) {
578 /* raw pictures are written as AVPicture structure to
579 avoid any copies. We support temorarily the older
581 av_write_frame(s, ost->index,
582 (uint8_t *)final_picture, sizeof(AVPicture));
586 memset(&big_picture, 0, sizeof(AVFrame));
587 *(AVPicture*)&big_picture= *final_picture;
589 /* handles sameq here. This is not correct because it may
590 not be a global option */
592 big_picture.quality = ist->st->quality;
594 big_picture.quality = ost->st->quality;
596 ret = avcodec_encode_video(enc,
597 video_buffer, VIDEO_BUFFER_SIZE,
599 //enc->frame_number = enc->real_pict_num;
600 av_write_frame(s, ost->index, video_buffer, ret);
602 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
603 // enc->frame_number-1, enc->real_pict_num, ret,
605 /* if two pass, output log */
606 if (ost->logfile && enc->stats_out) {
607 fprintf(ost->logfile, "%s", enc->stats_out);
617 static double psnr(double d){
618 if(d==0) return INFINITY;
619 return -10.0*log(d)/log(10.0);
622 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
625 static FILE *fvstats=NULL;
626 static int64_t total_size = 0;
633 double ti1, bitrate, avg_bitrate;
637 today = localtime(&today2);
638 sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
641 fvstats = fopen(filename,"w");
649 enc = &ost->st->codec;
650 total_size += frame_size;
651 if (enc->codec_type == CODEC_TYPE_VIDEO) {
652 frame_number = ost->frame_number;
653 fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality);
654 if (enc->flags&CODEC_FLAG_PSNR)
655 fprintf(fvstats, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
657 fprintf(fvstats,"f_size= %6d ", frame_size);
658 /* compute pts value */
659 ti1 = (double)ost->st->pts.val * os->pts_num / os->pts_den;
663 bitrate = (double)(frame_size * 8) * enc->frame_rate / enc->frame_rate_base / 1000.0;
664 avg_bitrate = (double)(total_size * 8) / ti1 / 1000.0;
665 fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
666 (double)total_size / 1024, ti1, bitrate, avg_bitrate);
667 fprintf(fvstats,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
671 static void print_report(AVFormatContext **output_files,
672 AVOutputStream **ost_table, int nb_ostreams,
677 AVFormatContext *oc, *os;
680 int frame_number, vid, i;
681 double bitrate, ti1, pts;
682 static int64_t last_time = -1;
684 if (!is_last_report) {
686 /* display the report every 0.5 seconds */
687 cur_time = av_gettime();
688 if (last_time == -1) {
689 last_time = cur_time;
692 if ((cur_time - last_time) < 500000)
694 last_time = cur_time;
698 oc = output_files[0];
700 total_size = url_ftell(&oc->pb);
705 for(i=0;i<nb_ostreams;i++) {
707 os = output_files[ost->file_index];
708 enc = &ost->st->codec;
709 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
710 sprintf(buf + strlen(buf), "q=%2.1f ",
711 enc->coded_frame->quality);
713 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
714 frame_number = ost->frame_number;
715 sprintf(buf + strlen(buf), "frame=%5d q=%2.1f ",
716 frame_number, enc->coded_frame ? enc->coded_frame->quality : 0);
717 if (enc->flags&CODEC_FLAG_PSNR)
718 sprintf(buf + strlen(buf), "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
721 /* compute min output value */
722 pts = (double)ost->st->pts.val * os->pts_num / os->pts_den;
723 if ((pts < ti1) && (pts > 0))
728 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
730 sprintf(buf + strlen(buf),
731 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
732 (double)total_size / 1024, ti1, bitrate);
734 fprintf(stderr, "%s ", buf);
736 if (is_last_report) {
737 fprintf(stderr, "\n");
739 fprintf(stderr, "\r");
745 * The following code is the main loop of the file converter
747 static int av_encode(AVFormatContext **output_files,
749 AVFormatContext **input_files,
751 AVStreamMap *stream_maps, int nb_stream_maps)
753 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0, pts_set;
754 AVFormatContext *is, *os;
755 AVCodecContext *codec, *icodec;
756 AVOutputStream *ost, **ost_table = NULL;
757 AVInputStream *ist, **ist_table = NULL;
758 AVInputFile *file_table;
759 AVFormatContext *stream_no_data;
762 file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
766 /* input stream init */
768 for(i=0;i<nb_input_files;i++) {
770 file_table[i].ist_index = j;
771 file_table[i].nb_streams = is->nb_streams;
776 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
780 for(i=0;i<nb_istreams;i++) {
781 ist = av_mallocz(sizeof(AVInputStream));
787 for(i=0;i<nb_input_files;i++) {
789 for(k=0;k<is->nb_streams;k++) {
790 ist = ist_table[j++];
791 ist->st = is->streams[k];
794 ist->discard = 1; /* the stream is discarded by default
797 if (ist->st->codec.rate_emu) {
798 ist->start = av_gettime();
804 /* output stream init */
806 for(i=0;i<nb_output_files;i++) {
807 os = output_files[i];
808 nb_ostreams += os->nb_streams;
810 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
811 fprintf(stderr, "Number of stream maps must match number of output streams\n");
815 /* Sanity check the mapping args -- do the input files & streams exist? */
816 for(i=0;i<nb_stream_maps;i++) {
817 int fi = stream_maps[i].file_index;
818 int si = stream_maps[i].stream_index;
820 if (fi < 0 || fi > nb_input_files - 1 ||
821 si < 0 || si > file_table[fi].nb_streams - 1) {
822 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
827 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
830 for(i=0;i<nb_ostreams;i++) {
831 ost = av_mallocz(sizeof(AVOutputStream));
838 for(k=0;k<nb_output_files;k++) {
839 os = output_files[k];
840 for(i=0;i<os->nb_streams;i++) {
842 ost = ost_table[n++];
845 ost->st = os->streams[i];
846 if (nb_stream_maps > 0) {
847 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
848 stream_maps[n-1].stream_index;
850 /* Sanity check that the stream types match */
851 if (ist_table[ost->source_index]->st->codec.codec_type != ost->st->codec.codec_type) {
852 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
853 stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
854 ost->file_index, ost->index);
859 /* get corresponding input stream index : we select the first one with the right type */
861 for(j=0;j<nb_istreams;j++) {
864 ist->st->codec.codec_type == ost->st->codec.codec_type) {
865 ost->source_index = j;
871 /* try again and reuse existing stream */
872 for(j=0;j<nb_istreams;j++) {
874 if (ist->st->codec.codec_type == ost->st->codec.codec_type) {
875 ost->source_index = j;
880 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
881 ost->file_index, ost->index);
886 ist = ist_table[ost->source_index];
891 /* for each output stream, we compute the right encoding parameters */
892 for(i=0;i<nb_ostreams;i++) {
894 ist = ist_table[ost->source_index];
896 codec = &ost->st->codec;
897 icodec = &ist->st->codec;
899 if (ost->st->stream_copy) {
900 /* if stream_copy is selected, no need to decode or encode */
901 codec->codec_id = icodec->codec_id;
902 codec->codec_type = icodec->codec_type;
903 codec->codec_tag = icodec->codec_tag;
904 codec->bit_rate = icodec->bit_rate;
905 switch(codec->codec_type) {
906 case CODEC_TYPE_AUDIO:
907 codec->sample_rate = icodec->sample_rate;
908 codec->channels = icodec->channels;
910 case CODEC_TYPE_VIDEO:
911 codec->frame_rate = icodec->frame_rate;
912 codec->frame_rate_base = icodec->frame_rate_base;
913 codec->width = icodec->width;
914 codec->height = icodec->height;
920 switch(codec->codec_type) {
921 case CODEC_TYPE_AUDIO:
922 if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
925 if (codec->channels == icodec->channels &&
926 codec->sample_rate == icodec->sample_rate) {
927 ost->audio_resample = 0;
929 if (codec->channels != icodec->channels &&
930 icodec->codec_id == CODEC_ID_AC3) {
931 /* Special case for 5:1 AC3 input */
932 /* and mono or stereo output */
933 /* Request specific number of channels */
934 icodec->channels = codec->channels;
935 if (codec->sample_rate == icodec->sample_rate)
936 ost->audio_resample = 0;
938 ost->audio_resample = 1;
939 ost->resample = audio_resample_init(codec->channels, icodec->channels,
941 icodec->sample_rate);
943 /* Request specific number of channels */
944 icodec->channels = codec->channels;
946 ost->audio_resample = 1;
947 ost->resample = audio_resample_init(codec->channels, icodec->channels,
949 icodec->sample_rate);
952 ist->decoding_needed = 1;
953 ost->encoding_needed = 1;
955 case CODEC_TYPE_VIDEO:
956 if (codec->width == icodec->width &&
957 codec->height == icodec->height &&
958 frame_topBand == 0 &&
959 frame_bottomBand == 0 &&
960 frame_leftBand == 0 &&
961 frame_rightBand == 0)
963 ost->video_resample = 0;
965 } else if ((codec->width == icodec->width -
966 (frame_leftBand + frame_rightBand)) &&
967 (codec->height == icodec->height -
968 (frame_topBand + frame_bottomBand)))
970 ost->video_resample = 0;
972 ost->topBand = frame_topBand;
973 ost->leftBand = frame_leftBand;
976 ost->video_resample = 1;
977 ost->video_crop = 0; // cropping is handled as part of resample
978 buf = av_malloc((codec->width * codec->height * 3) / 2);
981 ost->pict_tmp.data[0] = buf;
982 ost->pict_tmp.data[1] = ost->pict_tmp.data[0] + (codec->width * codec->height);
983 ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (codec->width * codec->height) / 4;
984 ost->pict_tmp.linesize[0] = codec->width;
985 ost->pict_tmp.linesize[1] = codec->width / 2;
986 ost->pict_tmp.linesize[2] = codec->width / 2;
988 ost->img_resample_ctx = img_resample_full_init(
989 ost->st->codec.width, ost->st->codec.height,
990 ist->st->codec.width, ist->st->codec.height,
991 frame_topBand, frame_bottomBand,
992 frame_leftBand, frame_rightBand);
994 ost->encoding_needed = 1;
995 ist->decoding_needed = 1;
1001 if (ost->encoding_needed &&
1002 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1003 char logfilename[1024];
1008 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1010 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1011 if (codec->flags & CODEC_FLAG_PASS1) {
1012 f = fopen(logfilename, "w");
1014 perror(logfilename);
1019 /* read the log file */
1020 f = fopen(logfilename, "r");
1022 perror(logfilename);
1025 fseek(f, 0, SEEK_END);
1027 fseek(f, 0, SEEK_SET);
1028 logbuffer = av_malloc(size + 1);
1030 fprintf(stderr, "Could not allocate log buffer\n");
1033 fread(logbuffer, 1, size, f);
1035 logbuffer[size] = '\0';
1036 codec->stats_in = logbuffer;
1042 /* dump the file output parameters - cannot be done before in case
1044 for(i=0;i<nb_output_files;i++) {
1045 dump_format(output_files[i], i, output_files[i]->filename, 1);
1048 /* dump the stream mapping */
1049 fprintf(stderr, "Stream mapping:\n");
1050 for(i=0;i<nb_ostreams;i++) {
1052 fprintf(stderr, " Stream #%d.%d -> #%d.%d\n",
1053 ist_table[ost->source_index]->file_index,
1054 ist_table[ost->source_index]->index,
1059 /* open each encoder */
1060 for(i=0;i<nb_ostreams;i++) {
1062 if (ost->encoding_needed) {
1064 codec = avcodec_find_encoder(ost->st->codec.codec_id);
1066 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1067 ost->file_index, ost->index);
1070 if (avcodec_open(&ost->st->codec, codec) < 0) {
1071 fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1072 ost->file_index, ost->index);
1078 /* open each decoder */
1079 for(i=0;i<nb_istreams;i++) {
1081 if (ist->decoding_needed) {
1083 codec = avcodec_find_decoder(ist->st->codec.codec_id);
1085 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1086 ist->st->codec.codec_id, ist->file_index, ist->index);
1089 if (avcodec_open(&ist->st->codec, codec) < 0) {
1090 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1091 ist->file_index, ist->index);
1094 //if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO)
1095 // ist->st->codec.flags |= CODEC_FLAG_REPEAT_FIELD;
1096 ist->frame_decoded = 1;
1101 for(i=0;i<nb_istreams;i++) {
1105 /* compute buffer size max (should use a complete heuristic) */
1106 for(i=0;i<nb_input_files;i++) {
1107 file_table[i].buffer_size_max = 2048;
1110 /* open files and write file headers */
1111 for(i=0;i<nb_output_files;i++) {
1112 os = output_files[i];
1113 if (av_write_header(os) < 0) {
1114 fprintf(stderr, "Could not write header for output file #%d (incorrect codec paramters ?)\n", i);
1120 #ifndef CONFIG_WIN32
1121 fprintf(stderr, "Press [q] to stop encoding\n");
1129 int file_index, ist_index;
1134 int data_size, got_picture;
1136 short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
1137 void *buffer_to_free;
1141 /* if 'q' pressed, exits */
1143 /* read_key() returns 0 on EOF */
1149 /* select the stream that we must read now by looking at the
1150 smallest output pts */
1153 for(i=0;i<nb_ostreams;i++) {
1156 os = output_files[ost->file_index];
1157 ist = ist_table[ost->source_index];
1158 pts = (double)ost->st->pts.val * os->pts_num / os->pts_den;
1159 if (!file_table[ist->file_index].eof_reached &&
1162 file_index = ist->file_index;
1165 /* if none, if is finished */
1166 if (file_index < 0) {
1170 /* finish if recording time exhausted */
1171 if (recording_time > 0 && pts_min >= (recording_time / 1000000.0))
1174 /* read a packet from it and output it in the fifo */
1175 is = input_files[file_index];
1176 if (av_read_packet(is, &pkt) < 0) {
1177 file_table[file_index].eof_reached = 1;
1181 stream_no_data = is;
1186 printf("stream #%d, size=%d:\n", pkt.stream_index, pkt.size);
1187 av_hex_dump(pkt.data, pkt.size);
1189 /* the following test is needed in case new streams appear
1190 dynamically in stream : we ignore them */
1191 if (pkt.stream_index >= file_table[file_index].nb_streams)
1192 goto discard_packet;
1193 ist_index = file_table[file_index].ist_index + pkt.stream_index;
1194 ist = ist_table[ist_index];
1196 goto discard_packet;
1198 // printf("read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
1206 ipts = AV_NOPTS_VALUE;
1208 /* decode the packet if needed */
1209 data_buf = NULL; /* fail safe */
1211 if (ist->decoding_needed) {
1212 /* NOTE1: we only take into account the PTS if a new
1213 frame has begun (MPEG semantics) */
1214 /* NOTE2: even if the fraction is not initialized,
1215 av_frac_set can be used to set the integer part */
1216 if (ist->frame_decoded &&
1217 pkt.pts != AV_NOPTS_VALUE &&
1220 ist->frame_decoded = 0;
1224 switch(ist->st->codec.codec_type) {
1225 case CODEC_TYPE_AUDIO:
1226 /* XXX: could avoid copy if PCM 16 bits with same
1227 endianness as CPU */
1228 ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size,
1232 /* Some bug in mpeg audio decoder gives */
1233 /* data_size < 0, it seems they are overflows */
1234 if (data_size <= 0) {
1235 /* no audio frame */
1240 data_buf = (uint8_t *)samples;
1242 case CODEC_TYPE_VIDEO:
1244 AVFrame big_picture;
1246 data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
1247 ret = avcodec_decode_video(&ist->st->codec,
1248 &big_picture, &got_picture, ptr, len);
1249 picture= *(AVPicture*)&big_picture;
1250 ist->st->quality= big_picture.quality;
1253 fprintf(stderr, "Error while decoding stream #%d.%d\n",
1254 ist->file_index, ist->index);
1255 av_free_packet(&pkt);
1259 /* no picture yet */
1279 if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO) {
1280 pre_process_video_frame(ist, &picture, &buffer_to_free);
1283 ist->frame_decoded = 1;
1285 /* frame rate emulation */
1286 if (ist->st->codec.rate_emu) {
1287 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec.frame_rate_base, 1000000, ist->st->codec.frame_rate);
1288 int64_t now = av_gettime() - ist->start;
1296 /* mpeg PTS deordering : if it is a P or I frame, the PTS
1297 is the one of the next displayed one */
1298 /* XXX: add mpeg4 too ? */
1299 if (ist->st->codec.codec_id == CODEC_ID_MPEG1VIDEO) {
1300 if (ist->st->codec.pict_type != B_TYPE) {
1302 tmp = ist->last_ip_pts;
1303 ist->last_ip_pts = ist->frac_pts.val;
1304 ist->frac_pts.val = tmp;
1308 /* transcode raw format, encode packets and output them */
1310 for(i=0;i<nb_ostreams;i++) {
1314 if (ost->source_index == ist_index) {
1315 os = output_files[ost->file_index];
1317 if (ipts != AV_NOPTS_VALUE) {
1319 printf("%d: got pts=%f %f\n",
1320 i, pkt.pts / 90000.0,
1321 (ipts - ost->st->pts.val) / 90000.0);
1323 /* set the input output pts pairs */
1324 ost->sync_ipts = (double)ipts * is->pts_num /
1326 /* XXX: take into account the various fifos,
1327 in particular for audio */
1328 ost->sync_opts = ost->st->pts.val;
1329 //printf("ipts=%lld sync_ipts=%f sync_opts=%lld pts.val=%lld pkt.pts=%lld\n", ipts, ost->sync_ipts, ost->sync_opts, ost->st->pts.val, pkt.pts);
1331 //printf("pts.val=%lld\n", ost->st->pts.val);
1332 ost->sync_ipts = AV_NOPTS_VALUE;
1335 if (ost->encoding_needed) {
1336 switch(ost->st->codec.codec_type) {
1337 case CODEC_TYPE_AUDIO:
1338 do_audio_out(os, ost, ist, data_buf, data_size);
1340 case CODEC_TYPE_VIDEO:
1341 /* find an audio stream for synchro */
1344 AVOutputStream *audio_sync, *ost1;
1346 for(i=0;i<nb_ostreams;i++) {
1347 ost1 = ost_table[i];
1348 if (ost1->file_index == ost->file_index &&
1349 ost1->st->codec.codec_type == CODEC_TYPE_AUDIO) {
1355 do_video_out(os, ost, ist, &picture, &frame_size, audio_sync);
1356 if (do_vstats && frame_size)
1357 do_video_stats(os, ost, frame_size);
1366 /* no reencoding needed : output the packet directly */
1367 /* force the input stream PTS */
1369 memset(&avframe, 0, sizeof(AVFrame));
1370 ost->st->codec.coded_frame= &avframe;
1371 avframe.key_frame = pkt.flags & PKT_FLAG_KEY;
1373 av_write_frame(os, ost->index, data_buf, data_size);
1374 ost->st->codec.frame_number++;
1375 ost->frame_number++;
1379 av_free(buffer_to_free);
1380 ipts = AV_NOPTS_VALUE;
1383 av_free_packet(&pkt);
1385 /* dump report by using the output first video and audio streams */
1386 print_report(output_files, ost_table, nb_ostreams, 0);
1390 /* dump report by using the first video and audio streams */
1391 print_report(output_files, ost_table, nb_ostreams, 1);
1393 /* close each encoder */
1394 for(i=0;i<nb_ostreams;i++) {
1396 if (ost->encoding_needed) {
1397 av_freep(&ost->st->codec.stats_in);
1398 avcodec_close(&ost->st->codec);
1402 /* close each decoder */
1403 for(i=0;i<nb_istreams;i++) {
1405 if (ist->decoding_needed) {
1406 avcodec_close(&ist->st->codec);
1411 /* write the trailer if needed and close file */
1412 for(i=0;i<nb_output_files;i++) {
1413 os = output_files[i];
1414 av_write_trailer(os);
1420 av_free(file_table);
1423 for(i=0;i<nb_istreams;i++) {
1430 for(i=0;i<nb_ostreams;i++) {
1434 fclose(ost->logfile);
1435 ost->logfile = NULL;
1437 fifo_free(&ost->fifo); /* works even if fifo is not
1438 initialized but set to zero */
1439 av_free(ost->pict_tmp.data[0]);
1440 if (ost->video_resample)
1441 img_resample_close(ost->img_resample_ctx);
1442 if (ost->audio_resample)
1443 audio_resample_close(ost->resample);
1456 int file_read(const char *filename)
1459 unsigned char buffer[1024];
1462 if (url_open(&h, filename, O_RDONLY) < 0) {
1463 printf("could not open '%s'\n", filename);
1467 len = url_read(h, buffer, sizeof(buffer));
1470 for(i=0;i<len;i++) putchar(buffer[i]);
1477 static void show_licence(void)
1480 "ffmpeg version " FFMPEG_VERSION "\n"
1481 "Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n"
1482 "This library is free software; you can redistribute it and/or\n"
1483 "modify it under the terms of the GNU Lesser General Public\n"
1484 "License as published by the Free Software Foundation; either\n"
1485 "version 2 of the License, or (at your option) any later version.\n"
1487 "This library is distributed in the hope that it will be useful,\n"
1488 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1489 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1490 "Lesser General Public License for more details.\n"
1492 "You should have received a copy of the GNU Lesser General Public\n"
1493 "License along with this library; if not, write to the Free Software\n"
1494 "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n"
1499 static void opt_image_format(const char *arg)
1503 for(f = first_image_format; f != NULL; f = f->next) {
1504 if (!strcmp(arg, f->name))
1508 fprintf(stderr, "Unknown image format: '%s'\n", arg);
1514 static void opt_format(const char *arg)
1516 /* compatibility stuff for pgmyuv */
1517 if (!strcmp(arg, "pgmyuv")) {
1518 opt_image_format(arg);
1522 file_iformat = av_find_input_format(arg);
1523 file_oformat = guess_format(arg, NULL, NULL);
1524 if (!file_iformat && !file_oformat) {
1525 fprintf(stderr, "Unknown input or output format: %s\n", arg);
1530 static void opt_video_bitrate(const char *arg)
1532 video_bit_rate = atoi(arg) * 1000;
1535 static void opt_video_bitrate_tolerance(const char *arg)
1537 video_bit_rate_tolerance = atoi(arg) * 1000;
1540 static void opt_video_bitrate_max(const char *arg)
1542 video_rc_max_rate = atoi(arg) * 1000;
1545 static void opt_video_bitrate_min(const char *arg)
1547 video_rc_min_rate = atoi(arg) * 1000;
1550 static void opt_video_buffer_size(const char *arg)
1552 video_rc_buffer_size = atoi(arg) * 1000;
1555 static void opt_video_rc_eq(char *arg)
1560 static void opt_video_rc_override_string(char *arg)
1562 video_rc_override_string = arg;
1566 static void opt_workaround_bugs(const char *arg)
1568 workaround_bugs = atoi(arg);
1571 static void opt_dct_algo(const char *arg)
1573 dct_algo = atoi(arg);
1576 static void opt_idct_algo(const char *arg)
1578 idct_algo = atoi(arg);
1582 static void opt_error_resilience(const char *arg)
1584 error_resilience = atoi(arg);
1587 static void opt_error_concealment(const char *arg)
1589 error_concealment = atoi(arg);
1592 static void opt_debug(const char *arg)
1597 static void opt_frame_rate(const char *arg)
1599 frame_rate_base = DEFAULT_FRAME_RATE_BASE; //FIXME not optimal
1600 frame_rate = (int)(strtod(arg, 0) * frame_rate_base + 0.5);
1601 //FIXME parse fractions
1605 static void opt_frame_crop_top(const char *arg)
1607 frame_topBand = atoi(arg);
1608 if (frame_topBand < 0) {
1609 fprintf(stderr, "Incorrect top crop size\n");
1612 if ((frame_topBand % 2) != 0) {
1613 fprintf(stderr, "Top crop size must be a multiple of 2\n");
1616 if ((frame_topBand) >= frame_height){
1617 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1620 frame_height -= frame_topBand;
1623 static void opt_frame_crop_bottom(const char *arg)
1625 frame_bottomBand = atoi(arg);
1626 if (frame_bottomBand < 0) {
1627 fprintf(stderr, "Incorrect bottom crop size\n");
1630 if ((frame_bottomBand % 2) != 0) {
1631 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
1634 if ((frame_bottomBand) >= frame_height){
1635 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1638 frame_height -= frame_bottomBand;
1641 static void opt_frame_crop_left(const char *arg)
1643 frame_leftBand = atoi(arg);
1644 if (frame_leftBand < 0) {
1645 fprintf(stderr, "Incorrect left crop size\n");
1648 if ((frame_leftBand % 2) != 0) {
1649 fprintf(stderr, "Left crop size must be a multiple of 2\n");
1652 if ((frame_leftBand) >= frame_width){
1653 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1656 frame_width -= frame_leftBand;
1659 static void opt_frame_crop_right(const char *arg)
1661 frame_rightBand = atoi(arg);
1662 if (frame_rightBand < 0) {
1663 fprintf(stderr, "Incorrect right crop size\n");
1666 if ((frame_rightBand % 2) != 0) {
1667 fprintf(stderr, "Right crop size must be a multiple of 2\n");
1670 if ((frame_rightBand) >= frame_width){
1671 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1674 frame_width -= frame_rightBand;
1677 static void opt_frame_size(const char *arg)
1679 parse_image_size(&frame_width, &frame_height, arg);
1680 if (frame_width <= 0 || frame_height <= 0) {
1681 fprintf(stderr, "Incorrect frame size\n");
1684 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
1685 fprintf(stderr, "Frame size must be a multiple of 2\n");
1690 static void opt_frame_pix_fmt(const char *arg)
1692 frame_pix_fmt = avcodec_get_pix_fmt(arg);
1695 static void opt_frame_aspect_ratio(const char *arg)
1701 p = strchr(arg, ':');
1703 x = strtol(arg, (char **)&arg, 10);
1705 y = strtol(arg+1, (char **)&arg, 10);
1707 ar = (double)x / (double)y;
1709 ar = strtod(arg, (char **)&arg);
1712 fprintf(stderr, "Incorrect aspect ratio specification.\n");
1715 frame_aspect_ratio = ar;
1718 static void opt_gop_size(const char *arg)
1720 gop_size = atoi(arg);
1723 static void opt_b_frames(const char *arg)
1725 b_frames = atoi(arg);
1726 if (b_frames > FF_MAX_B_FRAMES) {
1727 fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES);
1729 } else if (b_frames < 1) {
1730 fprintf(stderr, "\nNumber of B frames must be higher than 0\n");
1735 static void opt_qscale(const char *arg)
1737 video_qscale = atoi(arg);
1738 if (video_qscale < 0 ||
1739 video_qscale > 31) {
1740 fprintf(stderr, "qscale must be >= 1 and <= 31\n");
1745 static void opt_qmin(const char *arg)
1747 video_qmin = atoi(arg);
1748 if (video_qmin < 0 ||
1750 fprintf(stderr, "qmin must be >= 1 and <= 31\n");
1755 static void opt_qmax(const char *arg)
1757 video_qmax = atoi(arg);
1758 if (video_qmax < 0 ||
1760 fprintf(stderr, "qmax must be >= 1 and <= 31\n");
1765 static void opt_mb_qmin(const char *arg)
1767 video_mb_qmin = atoi(arg);
1768 if (video_mb_qmin < 0 ||
1769 video_mb_qmin > 31) {
1770 fprintf(stderr, "qmin must be >= 1 and <= 31\n");
1775 static void opt_mb_qmax(const char *arg)
1777 video_mb_qmax = atoi(arg);
1778 if (video_mb_qmax < 0 ||
1779 video_mb_qmax > 31) {
1780 fprintf(stderr, "qmax must be >= 1 and <= 31\n");
1785 static void opt_qdiff(const char *arg)
1787 video_qdiff = atoi(arg);
1788 if (video_qdiff < 0 ||
1790 fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
1795 static void opt_qblur(const char *arg)
1797 video_qblur = atof(arg);
1800 static void opt_qcomp(const char *arg)
1802 video_qcomp = atof(arg);
1805 static void opt_rc_initial_cplx(const char *arg)
1807 video_rc_initial_cplx = atof(arg);
1809 static void opt_b_qfactor(const char *arg)
1811 video_b_qfactor = atof(arg);
1813 static void opt_i_qfactor(const char *arg)
1815 video_i_qfactor = atof(arg);
1817 static void opt_b_qoffset(const char *arg)
1819 video_b_qoffset = atof(arg);
1821 static void opt_i_qoffset(const char *arg)
1823 video_i_qoffset = atof(arg);
1826 static void opt_packet_size(const char *arg)
1828 packet_size= atoi(arg);
1831 static void opt_strict(const char *arg)
1836 static void opt_audio_bitrate(const char *arg)
1838 audio_bit_rate = atoi(arg) * 1000;
1841 static void opt_audio_rate(const char *arg)
1843 audio_sample_rate = atoi(arg);
1846 static void opt_audio_channels(const char *arg)
1848 audio_channels = atoi(arg);
1851 static void opt_video_device(const char *arg)
1853 video_device = av_strdup(arg);
1856 static void opt_video_channel(const char *arg)
1858 video_channel = strtol(arg, NULL, 0);
1861 static void opt_audio_device(const char *arg)
1863 audio_device = av_strdup(arg);
1866 static void opt_dv1394(const char *arg)
1868 video_grab_format = "dv1394";
1869 audio_grab_format = NULL;
1872 static void opt_audio_codec(const char *arg)
1876 if (!strcmp(arg, "copy")) {
1877 audio_stream_copy = 1;
1881 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
1886 fprintf(stderr, "Unknown audio codec '%s'\n", arg);
1889 audio_codec_id = p->id;
1894 static void add_frame_hooker(const char *arg)
1899 char *args = av_strdup(arg);
1901 argv[0] = strtok(args, " ");
1902 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
1905 i = frame_hook_add(argc, argv);
1908 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
1913 const char *motion_str[] = {
1923 static void opt_motion_estimation(const char *arg)
1929 fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
1932 if (!strcmp(*p, arg))
1936 me_method = (p - motion_str) + 1;
1939 static void opt_video_codec(const char *arg)
1943 if (!strcmp(arg, "copy")) {
1944 video_stream_copy = 1;
1948 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
1953 fprintf(stderr, "Unknown video codec '%s'\n", arg);
1956 video_codec_id = p->id;
1961 static void opt_map(const char *arg)
1967 m = &stream_maps[nb_stream_maps++];
1969 m->file_index = strtol(arg, (char **)&p, 0);
1973 m->stream_index = strtol(p, (char **)&p, 0);
1976 static void opt_recording_time(const char *arg)
1978 recording_time = parse_date(arg, 1);
1981 static void opt_input_file(const char *filename)
1983 AVFormatContext *ic;
1984 AVFormatParameters params, *ap = ¶ms;
1985 int err, i, ret, rfps, rfps_base;
1987 if (!strcmp(filename, "-"))
1990 /* get default parameters from command line */
1991 memset(ap, 0, sizeof(*ap));
1992 ap->sample_rate = audio_sample_rate;
1993 ap->channels = audio_channels;
1994 ap->frame_rate = frame_rate;
1995 ap->frame_rate_base = frame_rate_base;
1996 ap->width = frame_width;
1997 ap->height = frame_height;
1998 ap->image_format = image_format;
1999 ap->pix_fmt = frame_pix_fmt;
2001 /* open the input file with generic libav function */
2002 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2004 print_error(filename, err);
2008 /* If not enough info to get the stream parameters, we decode the
2009 first frames to get it. (used in mpeg case for example) */
2010 ret = av_find_stream_info(ic);
2012 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2016 /* update the current parameters so that they match the one of the input stream */
2017 for(i=0;i<ic->nb_streams;i++) {
2018 AVCodecContext *enc = &ic->streams[i]->codec;
2019 switch(enc->codec_type) {
2020 case CODEC_TYPE_AUDIO:
2021 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2022 audio_channels = enc->channels;
2023 audio_sample_rate = enc->sample_rate;
2025 case CODEC_TYPE_VIDEO:
2026 frame_height = enc->height;
2027 frame_width = enc->width;
2028 frame_aspect_ratio = enc->aspect_ratio;
2029 frame_pix_fmt = enc->pix_fmt;
2030 rfps = ic->streams[i]->r_frame_rate;
2031 rfps_base = ic->streams[i]->r_frame_rate_base;
2032 enc->workaround_bugs = workaround_bugs;
2033 enc->error_resilience = error_resilience;
2034 enc->error_concealment = error_concealment;
2035 enc->idct_algo= idct_algo;
2037 /* if(enc->codec->capabilities & CODEC_CAP_TRUNCATED)
2038 enc->flags|= CODEC_FLAG_TRUNCATED; */
2039 if(/*enc->codec_id==CODEC_ID_MPEG4 || */enc->codec_id==CODEC_ID_MPEG1VIDEO || enc->codec_id==CODEC_ID_H264)
2040 enc->flags|= CODEC_FLAG_TRUNCATED;
2043 enc->flags|= CODEC_FLAG_BITEXACT;
2045 assert(enc->frame_rate_base == rfps_base); // should be true for now
2046 if (enc->frame_rate != rfps) {
2047 fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f->%2.2f\n",
2048 i, (float)enc->frame_rate / enc->frame_rate_base,
2049 (float)rfps / rfps_base);
2051 /* update the current frame rate to match the stream frame rate */
2053 frame_rate_base = rfps_base;
2055 enc->rate_emu = rate_emu;
2062 input_files[nb_input_files] = ic;
2063 /* dump the file content */
2064 dump_format(ic, nb_input_files, filename, 0);
2066 file_iformat = NULL;
2067 file_oformat = NULL;
2068 image_format = NULL;
2073 static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
2075 int has_video, has_audio, i, j;
2076 AVFormatContext *ic;
2080 for(j=0;j<nb_input_files;j++) {
2081 ic = input_files[j];
2082 for(i=0;i<ic->nb_streams;i++) {
2083 AVCodecContext *enc = &ic->streams[i]->codec;
2084 switch(enc->codec_type) {
2085 case CODEC_TYPE_AUDIO:
2088 case CODEC_TYPE_VIDEO:
2096 *has_video_ptr = has_video;
2097 *has_audio_ptr = has_audio;
2100 static void opt_output_file(const char *filename)
2103 AVFormatContext *oc;
2104 int use_video, use_audio, nb_streams, input_has_video, input_has_audio;
2106 AVFormatParameters params, *ap = ¶ms;
2108 if (!strcmp(filename, "-"))
2111 oc = av_mallocz(sizeof(AVFormatContext));
2113 if (!file_oformat) {
2114 file_oformat = guess_format(NULL, filename, NULL);
2115 if (!file_oformat) {
2116 fprintf(stderr, "Unable for find a suitable output format for '%s'\n",
2122 oc->oformat = file_oformat;
2124 if (!strcmp(file_oformat->name, "ffm") &&
2125 strstart(filename, "http:", NULL)) {
2126 /* special case for files sent to ffserver: we get the stream
2127 parameters from ffserver */
2128 if (read_ffserver_streams(oc, filename) < 0) {
2129 fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
2133 use_video = file_oformat->video_codec != CODEC_ID_NONE;
2134 use_audio = file_oformat->audio_codec != CODEC_ID_NONE;
2136 /* disable if no corresponding type found and at least one
2138 if (nb_input_files > 0) {
2139 check_audio_video_inputs(&input_has_video, &input_has_audio);
2140 if (!input_has_video)
2142 if (!input_has_audio)
2146 /* manual disable */
2147 if (audio_disable) {
2150 if (video_disable) {
2156 AVCodecContext *video_enc;
2158 st = av_mallocz(sizeof(AVStream));
2160 fprintf(stderr, "Could not alloc stream\n");
2163 avcodec_get_context_defaults(&st->codec);
2165 video_enc = &st->codec;
2166 if (video_stream_copy) {
2167 st->stream_copy = 1;
2168 video_enc->codec_type = CODEC_TYPE_VIDEO;
2173 codec_id = file_oformat->video_codec;
2174 if (video_codec_id != CODEC_ID_NONE)
2175 codec_id = video_codec_id;
2177 video_enc->codec_id = codec_id;
2179 video_enc->bit_rate = video_bit_rate;
2180 video_enc->bit_rate_tolerance = video_bit_rate_tolerance;
2181 video_enc->frame_rate = frame_rate;
2182 video_enc->frame_rate_base = frame_rate_base;
2184 video_enc->width = frame_width;
2185 video_enc->height = frame_height;
2186 video_enc->aspect_ratio = frame_aspect_ratio;
2187 video_enc->pix_fmt = frame_pix_fmt;
2190 video_enc->gop_size = gop_size;
2192 video_enc->gop_size = 0;
2193 if (video_qscale || same_quality) {
2194 video_enc->flags |= CODEC_FLAG_QSCALE;
2195 st->quality = video_qscale;
2199 video_enc->flags |= CODEC_FLAG_BITEXACT;
2202 video_enc->flags |= CODEC_FLAG_HQ;
2206 video_enc->flags |= CODEC_FLAG_H263P_UMV;
2209 video_enc->flags |= CODEC_FLAG_H263P_AIC;
2213 video_enc->flags |= CODEC_FLAG_HQ;
2214 video_enc->flags |= CODEC_FLAG_4MV;
2218 video_enc->flags |= CODEC_FLAG_PART;
2222 video_enc->max_b_frames = b_frames;
2223 video_enc->b_frame_strategy = 0;
2224 video_enc->b_quant_factor = 2.0;
2227 video_enc->qmin = video_qmin;
2228 video_enc->qmax = video_qmax;
2229 video_enc->mb_qmin = video_mb_qmin;
2230 video_enc->mb_qmax = video_mb_qmax;
2231 video_enc->max_qdiff = video_qdiff;
2232 video_enc->qblur = video_qblur;
2233 video_enc->qcompress = video_qcomp;
2234 video_enc->rc_eq = video_rc_eq;
2235 video_enc->debug= debug;
2237 p= video_rc_override_string;
2240 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
2242 fprintf(stderr, "error parsing rc_override\n");
2245 video_enc->rc_override=
2246 av_realloc(video_enc->rc_override,
2247 sizeof(RcOverride)*(i+1));
2248 video_enc->rc_override[i].start_frame= start;
2249 video_enc->rc_override[i].end_frame = end;
2251 video_enc->rc_override[i].qscale= q;
2252 video_enc->rc_override[i].quality_factor= 1.0;
2255 video_enc->rc_override[i].qscale= 0;
2256 video_enc->rc_override[i].quality_factor= -q/100.0;
2261 video_enc->rc_override_count=i;
2263 video_enc->rc_max_rate = video_rc_max_rate;
2264 video_enc->rc_min_rate = video_rc_min_rate;
2265 video_enc->rc_buffer_size = video_rc_buffer_size;
2266 video_enc->rc_buffer_aggressivity= video_rc_buffer_aggressivity;
2267 video_enc->rc_initial_cplx= video_rc_initial_cplx;
2268 video_enc->i_quant_factor = video_i_qfactor;
2269 video_enc->b_quant_factor = video_b_qfactor;
2270 video_enc->i_quant_offset = video_i_qoffset;
2271 video_enc->b_quant_offset = video_b_qoffset;
2272 video_enc->dct_algo = dct_algo;
2273 video_enc->idct_algo = idct_algo;
2274 video_enc->strict_std_compliance = strict;
2276 video_enc->rtp_mode= 1;
2277 video_enc->rtp_payload_size= packet_size;
2281 video_enc->flags|= CODEC_FLAG_PSNR;
2283 video_enc->me_method = me_method;
2288 video_enc->flags |= CODEC_FLAG_PASS1;
2290 video_enc->flags |= CODEC_FLAG_PASS2;
2294 oc->streams[nb_streams] = st;
2299 AVCodecContext *audio_enc;
2301 st = av_mallocz(sizeof(AVStream));
2303 fprintf(stderr, "Could not alloc stream\n");
2306 avcodec_get_context_defaults(&st->codec);
2308 audio_enc = &st->codec;
2309 audio_enc->codec_type = CODEC_TYPE_AUDIO;
2310 if (audio_stream_copy) {
2311 st->stream_copy = 1;
2313 codec_id = file_oformat->audio_codec;
2314 if (audio_codec_id != CODEC_ID_NONE)
2315 codec_id = audio_codec_id;
2316 audio_enc->codec_id = codec_id;
2318 audio_enc->bit_rate = audio_bit_rate;
2319 audio_enc->sample_rate = audio_sample_rate;
2320 /* For audio codecs other than AC3 we limit */
2321 /* the number of coded channels to stereo */
2322 if (audio_channels > 2 && codec_id != CODEC_ID_AC3) {
2323 audio_enc->channels = 2;
2325 audio_enc->channels = audio_channels;
2327 oc->streams[nb_streams] = st;
2331 oc->nb_streams = nb_streams;
2334 fprintf(stderr, "No audio or video streams available\n");
2339 pstrcpy(oc->title, sizeof(oc->title), str_title);
2341 pstrcpy(oc->author, sizeof(oc->author), str_author);
2343 pstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright);
2345 pstrcpy(oc->comment, sizeof(oc->comment), str_comment);
2348 output_files[nb_output_files++] = oc;
2350 strcpy(oc->filename, filename);
2352 /* check filename in case of an image number is expected */
2353 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
2354 if (filename_number_test(oc->filename) < 0) {
2355 print_error(oc->filename, AVERROR_NUMEXPECTED);
2360 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
2361 /* test if it already exists to avoid loosing precious files */
2362 if (!file_overwrite &&
2363 (strchr(filename, ':') == NULL ||
2364 strstart(filename, "file:", NULL))) {
2365 if (url_exist(filename)) {
2368 printf("File '%s' already exists. Overwrite ? [y/N] ", filename);
2371 if (toupper(c) != 'Y') {
2372 fprintf(stderr, "Not overwriting - exiting\n");
2379 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
2380 fprintf(stderr, "Could not open '%s'\n", filename);
2385 memset(ap, 0, sizeof(*ap));
2386 ap->image_format = image_format;
2387 if (av_set_parameters(oc, ap) < 0) {
2388 fprintf(stderr, "%s: Invalid encoding parameters\n",
2393 /* reset some options */
2394 file_oformat = NULL;
2395 file_iformat = NULL;
2396 image_format = NULL;
2399 audio_codec_id = CODEC_ID_NONE;
2400 video_codec_id = CODEC_ID_NONE;
2401 audio_stream_copy = 0;
2402 video_stream_copy = 0;
2405 /* prepare dummy protocols for grab */
2406 static void prepare_grab(void)
2408 int has_video, has_audio, i, j;
2409 AVFormatContext *oc;
2410 AVFormatContext *ic;
2411 AVFormatParameters vp1, *vp = &vp1;
2412 AVFormatParameters ap1, *ap = &ap1;
2414 /* see if audio/video inputs are needed */
2417 memset(ap, 0, sizeof(*ap));
2418 memset(vp, 0, sizeof(*vp));
2419 for(j=0;j<nb_output_files;j++) {
2420 oc = output_files[j];
2421 for(i=0;i<oc->nb_streams;i++) {
2422 AVCodecContext *enc = &oc->streams[i]->codec;
2423 switch(enc->codec_type) {
2424 case CODEC_TYPE_AUDIO:
2425 if (enc->sample_rate > ap->sample_rate)
2426 ap->sample_rate = enc->sample_rate;
2427 if (enc->channels > ap->channels)
2428 ap->channels = enc->channels;
2431 case CODEC_TYPE_VIDEO:
2432 if (enc->width > vp->width)
2433 vp->width = enc->width;
2434 if (enc->height > vp->height)
2435 vp->height = enc->height;
2437 assert(enc->frame_rate_base == DEFAULT_FRAME_RATE_BASE);
2438 if (enc->frame_rate > vp->frame_rate){
2439 vp->frame_rate = enc->frame_rate;
2440 vp->frame_rate_base = enc->frame_rate_base;
2450 if (has_video == 0 && has_audio == 0) {
2451 fprintf(stderr, "Output file must have at least one audio or video stream\n");
2456 AVInputFormat *fmt1;
2457 fmt1 = av_find_input_format(video_grab_format);
2458 vp->device = video_device;
2459 vp->channel = video_channel;
2460 if (av_open_input_file(&ic, "", fmt1, 0, vp) < 0) {
2461 fprintf(stderr, "Could not find video grab device\n");
2464 /* by now video grab has one stream */
2465 ic->streams[0]->r_frame_rate = vp->frame_rate;
2466 ic->streams[0]->r_frame_rate_base = vp->frame_rate_base;
2467 input_files[nb_input_files] = ic;
2468 dump_format(ic, nb_input_files, "", 0);
2471 if (has_audio && audio_grab_format) {
2472 AVInputFormat *fmt1;
2473 fmt1 = av_find_input_format(audio_grab_format);
2474 ap->device = audio_device;
2475 if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) {
2476 fprintf(stderr, "Could not find audio grab device\n");
2479 input_files[nb_input_files] = ic;
2480 dump_format(ic, nb_input_files, "", 0);
2485 /* same option as mencoder */
2486 static void opt_pass(const char *pass_str)
2489 pass = atoi(pass_str);
2490 if (pass != 1 && pass != 2) {
2491 fprintf(stderr, "pass number can be only 1 or 2\n");
2497 #if defined(CONFIG_WIN32) || defined(CONFIG_OS2)
2498 static int64_t getutime(void)
2500 return av_gettime();
2503 static int64_t getutime(void)
2505 struct rusage rusage;
2507 getrusage(RUSAGE_SELF, &rusage);
2508 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2512 extern int ffm_nopts;
2514 static void opt_bitexact(void)
2517 /* disable generate of real time pts in ffm (need to be supressed anyway) */
2521 static void show_formats(void)
2523 AVInputFormat *ifmt;
2524 AVOutputFormat *ofmt;
2525 AVImageFormat *image_fmt;
2530 printf("Output audio/video file formats:");
2531 for(ofmt = first_oformat; ofmt != NULL; ofmt = ofmt->next) {
2532 printf(" %s", ofmt->name);
2536 printf("Input audio/video file formats:");
2537 for(ifmt = first_iformat; ifmt != NULL; ifmt = ifmt->next) {
2538 printf(" %s", ifmt->name);
2542 printf("Output image formats:");
2543 for(image_fmt = first_image_format; image_fmt != NULL;
2544 image_fmt = image_fmt->next) {
2545 if (image_fmt->img_write)
2546 printf(" %s", image_fmt->name);
2550 printf("Input image formats:");
2551 for(image_fmt = first_image_format; image_fmt != NULL;
2552 image_fmt = image_fmt->next) {
2553 if (image_fmt->img_read)
2554 printf(" %s", image_fmt->name);
2558 printf("Codecs:\n");
2559 printf(" Encoders:");
2560 for(p = first_avcodec; p != NULL; p = p->next) {
2562 printf(" %s", p->name);
2566 printf(" Decoders:");
2567 for(p = first_avcodec; p != NULL; p = p->next) {
2569 printf(" %s", p->name);
2573 printf("Supported file protocols:");
2574 for(up = first_protocol; up != NULL; up = up->next)
2575 printf(" %s:", up->name);
2578 printf("Frame size abbreviations: sqcif qcif cif 4cif\n");
2579 printf("Motion estimation methods:");
2583 if ((pp - motion_str + 1) == ME_ZERO)
2584 printf("(fastest)");
2585 else if ((pp - motion_str + 1) == ME_FULL)
2586 printf("(slowest)");
2587 else if ((pp - motion_str + 1) == ME_EPZS)
2588 printf("(default)");
2595 const OptionDef options[] = {
2596 { "L", 0, {(void*)show_licence}, "show license" },
2597 { "h", 0, {(void*)show_help}, "show help" },
2598 { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
2599 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2600 { "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
2601 { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
2602 { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
2603 { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" },
2604 { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
2605 { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
2606 { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },
2607 { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" },
2608 { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" },
2609 { "pass", HAS_ARG, {(void*)&opt_pass}, "select the pass number (1 or 2)", "n" },
2610 { "passlogfile", HAS_ARG | OPT_STRING, {(void*)&pass_logfilename}, "select two pass log file name", "file" },
2612 { "b", HAS_ARG, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" },
2613 { "r", HAS_ARG, {(void*)opt_frame_rate}, "set frame rate (in Hz)", "rate" },
2614 { "re", OPT_BOOL|OPT_EXPERT, {(void*)&rate_emu}, "read input at native frame rate" },
2615 { "s", HAS_ARG, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2616 { "aspect", HAS_ARG, {(void*)opt_frame_aspect_ratio}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2617 { "pix_fmt", HAS_ARG | OPT_EXPERT, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2618 { "croptop", HAS_ARG, {(void*)opt_frame_crop_top}, "set top crop band size (in pixels)", "size" },
2619 { "cropbottom", HAS_ARG, {(void*)opt_frame_crop_bottom}, "set bottom crop band size (in pixels)", "size" },
2620 { "cropleft", HAS_ARG, {(void*)opt_frame_crop_left}, "set left crop band size (in pixels)", "size" },
2621 { "cropright", HAS_ARG, {(void*)opt_frame_crop_right}, "set right crop band size (in pixels)", "size" },
2622 { "g", HAS_ARG | OPT_EXPERT, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" },
2623 { "intra", OPT_BOOL | OPT_EXPERT, {(void*)&intra_only}, "use only intra frames"},
2624 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2625 { "qscale", HAS_ARG | OPT_EXPERT, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" },
2626 { "qmin", HAS_ARG | OPT_EXPERT, {(void*)opt_qmin}, "min video quantiser scale (VBR)", "q" },
2627 { "qmax", HAS_ARG | OPT_EXPERT, {(void*)opt_qmax}, "max video quantiser scale (VBR)", "q" },
2628 { "mbqmin", HAS_ARG | OPT_EXPERT, {(void*)opt_mb_qmin}, "min macroblock quantiser scale (VBR)", "q" },
2629 { "mbqmax", HAS_ARG | OPT_EXPERT, {(void*)opt_mb_qmax}, "max macroblock quantiser scale (VBR)", "q" },
2630 { "qdiff", HAS_ARG | OPT_EXPERT, {(void*)opt_qdiff}, "max difference between the quantiser scale (VBR)", "q" },
2631 { "qblur", HAS_ARG | OPT_EXPERT, {(void*)opt_qblur}, "video quantiser scale blur (VBR)", "blur" },
2632 { "qcomp", HAS_ARG | OPT_EXPERT, {(void*)opt_qcomp}, "video quantiser scale compression (VBR)", "compression" },
2633 { "rc_init_cplx", HAS_ARG | OPT_EXPERT, {(void*)opt_rc_initial_cplx}, "initial complexity for 1-pass encoding", "complexity" },
2634 { "b_qfactor", HAS_ARG | OPT_EXPERT, {(void*)opt_b_qfactor}, "qp factor between p and b frames", "factor" },
2635 { "i_qfactor", HAS_ARG | OPT_EXPERT, {(void*)opt_i_qfactor}, "qp factor between p and i frames", "factor" },
2636 { "b_qoffset", HAS_ARG | OPT_EXPERT, {(void*)opt_b_qoffset}, "qp offset between p and b frames", "offset" },
2637 { "i_qoffset", HAS_ARG | OPT_EXPERT, {(void*)opt_i_qoffset}, "qp offset between p and i frames", "offset" },
2638 // { "b_strategy", HAS_ARG | OPT_EXPERT, {(void*)opt_b_strategy}, "dynamic b frame selection strategy", "strategy" },
2639 { "rc_eq", HAS_ARG | OPT_EXPERT, {(void*)opt_video_rc_eq}, "", "equation" },
2640 { "rc_override", HAS_ARG | OPT_EXPERT, {(void*)opt_video_rc_override_string}, "Rate control override", "qualities for specific intervals" },
2641 { "bt", HAS_ARG, {(void*)opt_video_bitrate_tolerance}, "set video bitrate tolerance (in kbit/s)", "tolerance" },
2642 { "maxrate", HAS_ARG, {(void*)opt_video_bitrate_max}, "set max video bitrate tolerance (in kbit/s)", "bitrate" },
2643 { "minrate", HAS_ARG, {(void*)opt_video_bitrate_min}, "set min video bitrate tolerance (in kbit/s)", "bitrate" },
2644 { "bufsize", HAS_ARG, {(void*)opt_video_buffer_size}, "set ratecontrol buffere size (in kbit)", "size" },
2645 { "vd", HAS_ARG | OPT_EXPERT, {(void*)opt_video_device}, "set video grab device", "device" },
2646 { "vc", HAS_ARG | OPT_EXPERT, {(void*)opt_video_channel}, "set video grab channel (DV1394 only)", "channel" },
2647 { "dv1394", OPT_EXPERT, {(void*)opt_dv1394}, "set DV1394 grab", "" },
2648 { "vcodec", HAS_ARG | OPT_EXPERT, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
2649 { "me", HAS_ARG | OPT_EXPERT, {(void*)opt_motion_estimation}, "set motion estimation method",
2651 { "dct_algo", HAS_ARG | OPT_EXPERT, {(void*)opt_dct_algo}, "set dct algo", "algo" },
2652 { "idct_algo", HAS_ARG | OPT_EXPERT, {(void*)opt_idct_algo}, "set idct algo", "algo" },
2653 { "er", HAS_ARG | OPT_EXPERT, {(void*)opt_error_resilience}, "set error resilience", "" },
2654 { "ec", HAS_ARG | OPT_EXPERT, {(void*)opt_error_concealment}, "set error concealment", "" },
2655 { "bf", HAS_ARG | OPT_EXPERT, {(void*)opt_b_frames}, "use 'frames' B frames (only MPEG-4)", "frames" },
2656 { "hq", OPT_BOOL | OPT_EXPERT, {(void*)&use_hq}, "activate high quality settings" },
2657 { "4mv", OPT_BOOL | OPT_EXPERT, {(void*)&use_4mv}, "use four motion vector by macroblock (only MPEG-4)" },
2658 { "part", OPT_BOOL | OPT_EXPERT, {(void*)&use_part}, "use data partitioning (only MPEG-4)" },
2659 { "bug", HAS_ARG | OPT_EXPERT, {(void*)opt_workaround_bugs}, "workaround not auto detected encoder bugs", "param" },
2660 { "ps", HAS_ARG | OPT_EXPERT, {(void*)opt_packet_size}, "packet size", "size in bits" },
2661 { "strict", HAS_ARG | OPT_EXPERT, {(void*)opt_strict}, "strictness", "how strictly to follow the standarts" },
2662 { "sameq", OPT_BOOL, {(void*)&same_quality},
2663 "use same video quality as source (implies VBR)" },
2664 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2666 { "ab", HAS_ARG, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },
2667 { "ar", HAS_ARG, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
2668 { "ac", HAS_ARG, {(void*)opt_audio_channels}, "set number of audio channels", "channels" },
2669 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2670 { "ad", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_device}, "set audio device", "device" },
2671 { "acodec", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
2672 { "deinterlace", OPT_BOOL | OPT_EXPERT, {(void*)&do_deinterlace},
2673 "deinterlace pictures" },
2674 { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
2675 "add timings for benchmarking" },
2676 { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
2677 "dump each input packet" },
2678 { "psnr", OPT_BOOL | OPT_EXPERT, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
2679 { "vstats", OPT_BOOL | OPT_EXPERT, {(void*)&do_vstats}, "dump video coding statistics to file" },
2680 { "bitexact", OPT_EXPERT, {(void*)opt_bitexact}, "only use bit exact algorithms (for codec testing)" },
2681 { "vhook", HAS_ARG | OPT_EXPERT, {(void*)add_frame_hooker}, "insert video processing module", "module name and parameters" },
2683 { "aic", OPT_BOOL | OPT_EXPERT, {(void*)&use_aic}, "enable Advanced intra coding (h263+)" },
2684 { "umv", OPT_BOOL | OPT_EXPERT, {(void*)&use_umv}, "enable Unlimited Motion Vector (h263+)" },
2689 void show_help(void)
2691 printf("ffmpeg version " FFMPEG_VERSION ", Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n");
2692 printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n"
2693 "Hyper fast Audio and Video encoder\n");
2695 show_help_options(options);
2699 void parse_arg_file(const char *filename)
2701 opt_output_file(filename);
2704 int main(int argc, char **argv)
2715 parse_options(argc, argv, options);
2717 /* file converter / grab */
2718 if (nb_output_files <= 0) {
2719 fprintf(stderr, "Must supply at least one output file\n");
2723 if (nb_input_files == 0) {
2728 av_encode(output_files, nb_output_files, input_files, nb_input_files,
2729 stream_maps, nb_stream_maps);
2730 ti = getutime() - ti;
2732 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
2736 for(i=0;i<nb_output_files;i++) {
2737 /* maybe av_close_output_file ??? */
2738 AVFormatContext *s = output_files[i];
2740 if (!(s->oformat->flags & AVFMT_NOFILE))
2742 for(j=0;j<s->nb_streams;j++)
2743 av_free(s->streams[j]);
2746 for(i=0;i<nb_input_files;i++)
2747 av_close_input_file(input_files[i]);
2752 #ifdef POWERPC_TBL_PERFORMANCE_REPORT
2753 extern void powerpc_display_perf_report(void);
2754 powerpc_display_perf_report();
2755 #endif /* POWERPC_TBL_PERFORMANCE_REPORT */
2757 #ifndef CONFIG_WIN32
2758 if (received_sigterm) {
2760 "Received signal %d: terminating.\n",
2761 (int) received_sigterm);
2765 exit(0); /* not all OS-es handle main() return value */