3 * Copyright (c) 2000-2011 The libav developers.
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 #include "libavformat/avformat.h"
31 #include "libavdevice/avdevice.h"
32 #include "libswscale/swscale.h"
33 #include "libavresample/avresample.h"
34 #include "libavutil/opt.h"
35 #include "libavutil/channel_layout.h"
36 #include "libavutil/parseutils.h"
37 #include "libavutil/samplefmt.h"
38 #include "libavutil/colorspace.h"
39 #include "libavutil/fifo.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/dict.h"
42 #include "libavutil/mathematics.h"
43 #include "libavutil/pixdesc.h"
44 #include "libavutil/avstring.h"
45 #include "libavutil/libm.h"
46 #include "libavutil/imgutils.h"
47 #include "libavutil/time.h"
48 #include "libavformat/os_support.h"
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/buffersrc.h"
52 # include "libavfilter/buffersink.h"
54 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/resource.h>
58 #elif HAVE_GETPROCESSTIMES
61 #if HAVE_GETPROCESSMEMORYINFO
67 #include <sys/select.h>
79 #include "libavutil/avassert.h"
81 const char program_name[] = "avconv";
82 const int program_birth_year = 2000;
84 static FILE *vstats_file;
86 static int64_t video_size = 0;
87 static int64_t audio_size = 0;
88 static int64_t extra_size = 0;
89 static int nb_frames_dup = 0;
90 static int nb_frames_drop = 0;
95 /* signal to input threads that they should exit; set by the main thread */
96 static int transcoding_finished;
99 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
101 InputStream **input_streams = NULL;
102 int nb_input_streams = 0;
103 InputFile **input_files = NULL;
104 int nb_input_files = 0;
106 OutputStream **output_streams = NULL;
107 int nb_output_streams = 0;
108 OutputFile **output_files = NULL;
109 int nb_output_files = 0;
111 FilterGraph **filtergraphs;
114 static void term_exit(void)
116 av_log(NULL, AV_LOG_QUIET, "");
119 static volatile int received_sigterm = 0;
120 static volatile int received_nb_signals = 0;
123 sigterm_handler(int sig)
125 received_sigterm = sig;
126 received_nb_signals++;
130 static void term_init(void)
132 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
133 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
135 signal(SIGXCPU, sigterm_handler);
139 static int decode_interrupt_cb(void *ctx)
141 return received_nb_signals > 1;
144 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
146 static void exit_program(void)
150 for (i = 0; i < nb_filtergraphs; i++) {
151 avfilter_graph_free(&filtergraphs[i]->graph);
152 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
153 av_freep(&filtergraphs[i]->inputs[j]->name);
154 av_freep(&filtergraphs[i]->inputs[j]);
156 av_freep(&filtergraphs[i]->inputs);
157 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
158 av_freep(&filtergraphs[i]->outputs[j]->name);
159 av_freep(&filtergraphs[i]->outputs[j]);
161 av_freep(&filtergraphs[i]->outputs);
162 av_freep(&filtergraphs[i]->graph_desc);
163 av_freep(&filtergraphs[i]);
165 av_freep(&filtergraphs);
168 for (i = 0; i < nb_output_files; i++) {
169 AVFormatContext *s = output_files[i]->ctx;
170 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
172 avformat_free_context(s);
173 av_dict_free(&output_files[i]->opts);
174 av_freep(&output_files[i]);
176 for (i = 0; i < nb_output_streams; i++) {
177 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
179 AVBitStreamFilterContext *next = bsfc->next;
180 av_bitstream_filter_close(bsfc);
183 output_streams[i]->bitstream_filters = NULL;
184 avcodec_free_frame(&output_streams[i]->filtered_frame);
186 av_freep(&output_streams[i]->forced_keyframes);
187 av_freep(&output_streams[i]->avfilter);
188 av_freep(&output_streams[i]->logfile_prefix);
189 av_freep(&output_streams[i]);
191 for (i = 0; i < nb_input_files; i++) {
192 avformat_close_input(&input_files[i]->ctx);
193 av_freep(&input_files[i]);
195 for (i = 0; i < nb_input_streams; i++) {
196 av_frame_free(&input_streams[i]->decoded_frame);
197 av_frame_free(&input_streams[i]->filter_frame);
198 av_dict_free(&input_streams[i]->opts);
199 av_freep(&input_streams[i]->filters);
200 av_freep(&input_streams[i]);
205 av_free(vstats_filename);
207 av_freep(&input_streams);
208 av_freep(&input_files);
209 av_freep(&output_streams);
210 av_freep(&output_files);
214 avformat_network_deinit();
216 if (received_sigterm) {
217 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
218 (int) received_sigterm);
223 void assert_avoptions(AVDictionary *m)
225 AVDictionaryEntry *t;
226 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
227 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
232 static void abort_codec_experimental(AVCodec *c, int encoder)
234 const char *codec_string = encoder ? "encoder" : "decoder";
236 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
237 "results.\nAdd '-strict experimental' if you want to use it.\n",
238 codec_string, c->name);
239 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
240 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
241 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
242 codec_string, codec->name);
247 * Update the requested input sample format based on the output sample format.
248 * This is currently only used to request float output from decoders which
249 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
250 * Ideally this will be removed in the future when decoders do not do format
251 * conversion and only output in their native format.
253 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
256 /* if sample formats match or a decoder sample format has already been
257 requested, just return */
258 if (enc->sample_fmt == dec->sample_fmt ||
259 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
262 /* if decoder supports more than one output format */
263 if (dec_codec && dec_codec->sample_fmts &&
264 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
265 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
266 const enum AVSampleFormat *p;
267 int min_dec = INT_MAX, min_inc = INT_MAX;
268 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
269 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
271 /* find a matching sample format in the encoder */
272 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
273 if (*p == enc->sample_fmt) {
274 dec->request_sample_fmt = *p;
277 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
278 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
279 int fmt_diff = 32 * abs(dfmt - efmt);
280 if (av_sample_fmt_is_planar(*p) !=
281 av_sample_fmt_is_planar(enc->sample_fmt))
286 } else if (dfmt > efmt) {
287 if (fmt_diff < min_inc) {
292 if (fmt_diff < min_dec) {
300 /* if none match, provide the one that matches quality closest */
301 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
305 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
307 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
308 AVCodecContext *avctx = ost->st->codec;
312 * Audio encoders may split the packets -- #frames in != #packets out.
313 * But there is no reordering, so we can limit the number of output packets
314 * by simply dropping them here.
315 * Counting encoded video frames needs to be done separately because of
316 * reordering, see do_video_out()
318 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
319 if (ost->frame_number >= ost->max_frames) {
327 AVPacket new_pkt = *pkt;
328 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
329 &new_pkt.data, &new_pkt.size,
330 pkt->data, pkt->size,
331 pkt->flags & AV_PKT_FLAG_KEY);
334 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
335 av_buffer_default_free, NULL, 0);
339 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
340 bsfc->filter->name, pkt->stream_index,
341 avctx->codec ? avctx->codec->name : "copy");
351 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
352 ost->last_mux_dts != AV_NOPTS_VALUE &&
353 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
354 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
355 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
356 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
358 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
361 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
362 "in incorrect timestamps in the output file.\n",
363 ost->last_mux_dts + 1);
364 pkt->dts = ost->last_mux_dts + 1;
365 if (pkt->pts != AV_NOPTS_VALUE)
366 pkt->pts = FFMAX(pkt->pts, pkt->dts);
368 ost->last_mux_dts = pkt->dts;
370 pkt->stream_index = ost->index;
371 ret = av_interleaved_write_frame(s, pkt);
373 print_error("av_interleaved_write_frame()", ret);
378 static int check_recording_time(OutputStream *ost)
380 OutputFile *of = output_files[ost->file_index];
382 if (of->recording_time != INT64_MAX &&
383 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
384 AV_TIME_BASE_Q) >= 0) {
391 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
394 AVCodecContext *enc = ost->st->codec;
398 av_init_packet(&pkt);
402 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
403 frame->pts = ost->sync_opts;
404 ost->sync_opts = frame->pts + frame->nb_samples;
406 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
407 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
412 if (pkt.pts != AV_NOPTS_VALUE)
413 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
414 if (pkt.dts != AV_NOPTS_VALUE)
415 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
416 if (pkt.duration > 0)
417 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
419 write_frame(s, &pkt, ost);
421 audio_size += pkt.size;
425 static void do_subtitle_out(AVFormatContext *s,
431 static uint8_t *subtitle_out = NULL;
432 int subtitle_out_max_size = 1024 * 1024;
433 int subtitle_out_size, nb, i;
437 if (pts == AV_NOPTS_VALUE) {
438 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
444 enc = ost->st->codec;
447 subtitle_out = av_malloc(subtitle_out_max_size);
450 /* Note: DVB subtitle need one packet to draw them and one other
451 packet to clear them */
452 /* XXX: signal it in the codec context ? */
453 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
458 for (i = 0; i < nb; i++) {
459 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
460 if (!check_recording_time(ost))
463 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
464 // start_display_time is required to be 0
465 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
466 sub->end_display_time -= sub->start_display_time;
467 sub->start_display_time = 0;
468 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
469 subtitle_out_max_size, sub);
470 if (subtitle_out_size < 0) {
471 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
475 av_init_packet(&pkt);
476 pkt.data = subtitle_out;
477 pkt.size = subtitle_out_size;
478 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
479 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
480 /* XXX: the pts correction is handled here. Maybe handling
481 it in the codec would be better */
483 pkt.pts += 90 * sub->start_display_time;
485 pkt.pts += 90 * sub->end_display_time;
487 write_frame(s, &pkt, ost);
491 static void do_video_out(AVFormatContext *s,
496 int ret, format_video_sync;
498 AVCodecContext *enc = ost->st->codec;
502 format_video_sync = video_sync_method;
503 if (format_video_sync == VSYNC_AUTO)
504 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
505 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
506 if (format_video_sync != VSYNC_PASSTHROUGH &&
508 in_picture->pts != AV_NOPTS_VALUE &&
509 in_picture->pts < ost->sync_opts) {
511 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
515 if (in_picture->pts == AV_NOPTS_VALUE)
516 in_picture->pts = ost->sync_opts;
517 ost->sync_opts = in_picture->pts;
520 if (!ost->frame_number)
521 ost->first_pts = in_picture->pts;
523 av_init_packet(&pkt);
527 if (ost->frame_number >= ost->max_frames)
530 if (s->oformat->flags & AVFMT_RAWPICTURE &&
531 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
532 /* raw pictures are written as AVPicture structure to
533 avoid any copies. We support temporarily the older
535 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
536 enc->coded_frame->top_field_first = in_picture->top_field_first;
537 pkt.data = (uint8_t *)in_picture;
538 pkt.size = sizeof(AVPicture);
539 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
540 pkt.flags |= AV_PKT_FLAG_KEY;
542 write_frame(s, &pkt, ost);
546 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
547 ost->top_field_first >= 0)
548 in_picture->top_field_first = !!ost->top_field_first;
550 in_picture->quality = ost->st->codec->global_quality;
551 if (!enc->me_threshold)
552 in_picture->pict_type = 0;
553 if (ost->forced_kf_index < ost->forced_kf_count &&
554 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
555 in_picture->pict_type = AV_PICTURE_TYPE_I;
556 ost->forced_kf_index++;
558 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
560 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
565 if (pkt.pts != AV_NOPTS_VALUE)
566 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
567 if (pkt.dts != AV_NOPTS_VALUE)
568 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
570 write_frame(s, &pkt, ost);
571 *frame_size = pkt.size;
572 video_size += pkt.size;
574 /* if two pass, output log */
575 if (ost->logfile && enc->stats_out) {
576 fprintf(ost->logfile, "%s", enc->stats_out);
582 * For video, number of frames in == number of packets out.
583 * But there may be reordering, so we can't throw away frames on encoder
584 * flush, we need to limit them here, before they go into encoder.
589 static double psnr(double d)
591 return -10.0 * log(d) / log(10.0);
594 static void do_video_stats(OutputStream *ost, int frame_size)
598 double ti1, bitrate, avg_bitrate;
600 /* this is executed just the first time do_video_stats is called */
602 vstats_file = fopen(vstats_filename, "w");
609 enc = ost->st->codec;
610 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
611 frame_number = ost->frame_number;
612 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
613 if (enc->flags&CODEC_FLAG_PSNR)
614 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
616 fprintf(vstats_file,"f_size= %6d ", frame_size);
617 /* compute pts value */
618 ti1 = ost->sync_opts * av_q2d(enc->time_base);
622 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
623 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
624 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
625 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
626 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
631 * Read one frame for lavfi output for ost and encode it.
633 static int poll_filter(OutputStream *ost)
635 OutputFile *of = output_files[ost->file_index];
636 AVFrame *filtered_frame = NULL;
639 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
640 return AVERROR(ENOMEM);
642 avcodec_get_frame_defaults(ost->filtered_frame);
643 filtered_frame = ost->filtered_frame;
645 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
646 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
647 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
648 ost->st->codec->frame_size);
650 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
655 if (filtered_frame->pts != AV_NOPTS_VALUE) {
656 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
657 ost->filter->filter->inputs[0]->time_base,
658 ost->st->codec->time_base) -
659 av_rescale_q(of->start_time,
661 ost->st->codec->time_base);
664 switch (ost->filter->filter->inputs[0]->type) {
665 case AVMEDIA_TYPE_VIDEO:
666 if (!ost->frame_aspect_ratio)
667 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
669 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
670 if (vstats_filename && frame_size)
671 do_video_stats(ost, frame_size);
673 case AVMEDIA_TYPE_AUDIO:
674 do_audio_out(of->ctx, ost, filtered_frame);
677 // TODO support subtitle filters
681 av_frame_unref(filtered_frame);
687 * Read as many frames from possible from lavfi and encode them.
689 * Always read from the active stream with the lowest timestamp. If no frames
690 * are available for it then return EAGAIN and wait for more input. This way we
691 * can use lavfi sources that generate unlimited amount of frames without memory
694 static int poll_filters(void)
698 while (ret >= 0 && !received_sigterm) {
699 OutputStream *ost = NULL;
700 int64_t min_pts = INT64_MAX;
702 /* choose output stream with the lowest timestamp */
703 for (i = 0; i < nb_output_streams; i++) {
704 int64_t pts = output_streams[i]->sync_opts;
706 if (!output_streams[i]->filter || output_streams[i]->finished)
709 pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
713 ost = output_streams[i];
720 ret = poll_filter(ost);
722 if (ret == AVERROR_EOF) {
723 OutputFile *of = output_files[ost->file_index];
728 for (j = 0; j < of->ctx->nb_streams; j++)
729 output_streams[of->ost_index + j]->finished = 1;
733 } else if (ret == AVERROR(EAGAIN))
740 static void print_report(int is_last_report, int64_t timer_start)
747 int frame_number, vid, i;
748 double bitrate, ti1, pts;
749 static int64_t last_time = -1;
750 static int qp_histogram[52];
752 if (!print_stats && !is_last_report)
755 if (!is_last_report) {
757 /* display the report every 0.5 seconds */
758 cur_time = av_gettime();
759 if (last_time == -1) {
760 last_time = cur_time;
763 if ((cur_time - last_time) < 500000)
765 last_time = cur_time;
769 oc = output_files[0]->ctx;
771 total_size = avio_size(oc->pb);
772 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
773 total_size = avio_tell(oc->pb);
774 if (total_size < 0) {
776 av_strerror(total_size, errbuf, sizeof(errbuf));
777 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
778 "avio_tell() failed: %s\n", errbuf);
785 for (i = 0; i < nb_output_streams; i++) {
787 ost = output_streams[i];
788 enc = ost->st->codec;
789 if (!ost->stream_copy && enc->coded_frame)
790 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
791 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
792 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
794 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
795 float t = (av_gettime() - timer_start) / 1000000.0;
797 frame_number = ost->frame_number;
798 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
799 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
801 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
805 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
807 for (j = 0; j < 32; j++)
808 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
810 if (enc->flags&CODEC_FLAG_PSNR) {
812 double error, error_sum = 0;
813 double scale, scale_sum = 0;
814 char type[3] = { 'Y','U','V' };
815 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
816 for (j = 0; j < 3; j++) {
817 if (is_last_report) {
818 error = enc->error[j];
819 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
821 error = enc->coded_frame->error[j];
822 scale = enc->width * enc->height * 255.0 * 255.0;
828 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
830 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
834 /* compute min output value */
835 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
836 if ((pts < ti1) && (pts > 0))
842 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
844 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
845 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
846 (double)total_size / 1024, ti1, bitrate);
848 if (nb_frames_dup || nb_frames_drop)
849 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
850 nb_frames_dup, nb_frames_drop);
852 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
856 if (is_last_report) {
857 int64_t raw= audio_size + video_size + extra_size;
858 av_log(NULL, AV_LOG_INFO, "\n");
859 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
863 100.0 * (total_size - raw) / raw
868 static void flush_encoders(void)
872 for (i = 0; i < nb_output_streams; i++) {
873 OutputStream *ost = output_streams[i];
874 AVCodecContext *enc = ost->st->codec;
875 AVFormatContext *os = output_files[ost->file_index]->ctx;
876 int stop_encoding = 0;
878 if (!ost->encoding_needed)
881 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
883 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
887 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
891 switch (ost->st->codec->codec_type) {
892 case AVMEDIA_TYPE_AUDIO:
893 encode = avcodec_encode_audio2;
897 case AVMEDIA_TYPE_VIDEO:
898 encode = avcodec_encode_video2;
909 av_init_packet(&pkt);
913 ret = encode(enc, &pkt, NULL, &got_packet);
915 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
919 if (ost->logfile && enc->stats_out) {
920 fprintf(ost->logfile, "%s", enc->stats_out);
926 if (pkt.pts != AV_NOPTS_VALUE)
927 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
928 if (pkt.dts != AV_NOPTS_VALUE)
929 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
930 if (pkt.duration > 0)
931 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
932 write_frame(os, &pkt, ost);
942 * Check whether a packet from ist should be written into ost at this time
944 static int check_output_constraints(InputStream *ist, OutputStream *ost)
946 OutputFile *of = output_files[ost->file_index];
947 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
949 if (ost->source_index != ist_index)
952 if (of->start_time && ist->last_dts < of->start_time)
958 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
960 OutputFile *of = output_files[ost->file_index];
961 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
964 av_init_packet(&opkt);
966 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
967 !ost->copy_initial_nonkeyframes)
970 if (of->recording_time != INT64_MAX &&
971 ist->last_dts >= of->recording_time + of->start_time) {
976 /* force the input stream PTS */
977 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
978 audio_size += pkt->size;
979 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
980 video_size += pkt->size;
984 if (pkt->pts != AV_NOPTS_VALUE)
985 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
987 opkt.pts = AV_NOPTS_VALUE;
989 if (pkt->dts == AV_NOPTS_VALUE)
990 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
992 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
993 opkt.dts -= ost_tb_start_time;
995 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
996 opkt.flags = pkt->flags;
998 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
999 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1000 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1001 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1002 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1004 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) {
1005 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1010 opkt.data = pkt->data;
1011 opkt.size = pkt->size;
1014 write_frame(of->ctx, &opkt, ost);
1015 ost->st->codec->frame_number++;
1018 int guess_input_channel_layout(InputStream *ist)
1020 AVCodecContext *dec = ist->st->codec;
1022 if (!dec->channel_layout) {
1023 char layout_name[256];
1025 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1026 if (!dec->channel_layout)
1028 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1029 dec->channels, dec->channel_layout);
1030 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1031 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1036 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1038 AVFrame *decoded_frame, *f;
1039 AVCodecContext *avctx = ist->st->codec;
1040 int i, ret, err = 0, resample_changed;
1042 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1043 return AVERROR(ENOMEM);
1044 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1045 return AVERROR(ENOMEM);
1046 decoded_frame = ist->decoded_frame;
1048 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1049 if (!*got_output || ret < 0) {
1051 for (i = 0; i < ist->nb_filters; i++)
1052 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1057 /* if the decoder provides a pts, use it instead of the last packet pts.
1058 the decoder could be delaying output by a packet or more. */
1059 if (decoded_frame->pts != AV_NOPTS_VALUE)
1060 ist->next_dts = decoded_frame->pts;
1061 else if (pkt->pts != AV_NOPTS_VALUE) {
1062 decoded_frame->pts = pkt->pts;
1063 pkt->pts = AV_NOPTS_VALUE;
1066 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1067 ist->resample_channels != avctx->channels ||
1068 ist->resample_channel_layout != decoded_frame->channel_layout ||
1069 ist->resample_sample_rate != decoded_frame->sample_rate;
1070 if (resample_changed) {
1071 char layout1[64], layout2[64];
1073 if (!guess_input_channel_layout(ist)) {
1074 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1075 "layout for Input Stream #%d.%d\n", ist->file_index,
1079 decoded_frame->channel_layout = avctx->channel_layout;
1081 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1082 ist->resample_channel_layout);
1083 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1084 decoded_frame->channel_layout);
1086 av_log(NULL, AV_LOG_INFO,
1087 "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n",
1088 ist->file_index, ist->st->index,
1089 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1090 ist->resample_channels, layout1,
1091 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1092 avctx->channels, layout2);
1094 ist->resample_sample_fmt = decoded_frame->format;
1095 ist->resample_sample_rate = decoded_frame->sample_rate;
1096 ist->resample_channel_layout = decoded_frame->channel_layout;
1097 ist->resample_channels = avctx->channels;
1099 for (i = 0; i < nb_filtergraphs; i++)
1100 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1101 configure_filtergraph(filtergraphs[i]) < 0) {
1102 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1107 if (decoded_frame->pts != AV_NOPTS_VALUE)
1108 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1110 (AVRational){1, ist->st->codec->sample_rate});
1111 for (i = 0; i < ist->nb_filters; i++) {
1112 if (i < ist->nb_filters - 1) {
1113 f = ist->filter_frame;
1114 err = av_frame_ref(f, decoded_frame);
1120 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1125 av_frame_unref(ist->filter_frame);
1126 av_frame_unref(decoded_frame);
1127 return err < 0 ? err : ret;
1130 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1132 AVFrame *decoded_frame, *f;
1133 void *buffer_to_free = NULL;
1134 int i, ret = 0, err = 0, resample_changed;
1136 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1137 return AVERROR(ENOMEM);
1138 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1139 return AVERROR(ENOMEM);
1140 decoded_frame = ist->decoded_frame;
1142 ret = avcodec_decode_video2(ist->st->codec,
1143 decoded_frame, got_output, pkt);
1144 if (!*got_output || ret < 0) {
1146 for (i = 0; i < ist->nb_filters; i++)
1147 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1152 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1153 decoded_frame->pkt_dts);
1156 if (ist->st->sample_aspect_ratio.num)
1157 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1159 resample_changed = ist->resample_width != decoded_frame->width ||
1160 ist->resample_height != decoded_frame->height ||
1161 ist->resample_pix_fmt != decoded_frame->format;
1162 if (resample_changed) {
1163 av_log(NULL, AV_LOG_INFO,
1164 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1165 ist->file_index, ist->st->index,
1166 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1167 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1169 ret = poll_filters();
1170 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1171 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1173 ist->resample_width = decoded_frame->width;
1174 ist->resample_height = decoded_frame->height;
1175 ist->resample_pix_fmt = decoded_frame->format;
1177 for (i = 0; i < nb_filtergraphs; i++)
1178 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1179 configure_filtergraph(filtergraphs[i]) < 0) {
1180 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1185 for (i = 0; i < ist->nb_filters; i++) {
1186 if (i < ist->nb_filters - 1) {
1187 f = ist->filter_frame;
1188 err = av_frame_ref(f, decoded_frame);
1194 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1199 av_frame_unref(ist->filter_frame);
1200 av_frame_unref(decoded_frame);
1201 av_free(buffer_to_free);
1202 return err < 0 ? err : ret;
1205 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1207 AVSubtitle subtitle;
1208 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1209 &subtitle, got_output, pkt);
1215 for (i = 0; i < nb_output_streams; i++) {
1216 OutputStream *ost = output_streams[i];
1218 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1221 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1224 avsubtitle_free(&subtitle);
1228 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1229 static int output_packet(InputStream *ist, const AVPacket *pkt)
1235 if (ist->next_dts == AV_NOPTS_VALUE)
1236 ist->next_dts = ist->last_dts;
1240 av_init_packet(&avpkt);
1248 if (pkt->dts != AV_NOPTS_VALUE)
1249 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1251 // while we have more to decode or while the decoder did output something on EOF
1252 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1256 ist->last_dts = ist->next_dts;
1258 if (avpkt.size && avpkt.size != pkt->size) {
1259 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1260 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1261 ist->showed_multi_packet_warning = 1;
1264 switch (ist->st->codec->codec_type) {
1265 case AVMEDIA_TYPE_AUDIO:
1266 ret = decode_audio (ist, &avpkt, &got_output);
1268 case AVMEDIA_TYPE_VIDEO:
1269 ret = decode_video (ist, &avpkt, &got_output);
1271 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1272 else if (ist->st->avg_frame_rate.num)
1273 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1275 else if (ist->st->codec->time_base.num != 0) {
1276 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1277 ist->st->codec->ticks_per_frame;
1278 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
1281 case AVMEDIA_TYPE_SUBTITLE:
1282 ret = transcode_subtitles(ist, &avpkt, &got_output);
1290 // touch data and size only if not EOF
1300 /* handle stream copy */
1301 if (!ist->decoding_needed) {
1302 ist->last_dts = ist->next_dts;
1303 switch (ist->st->codec->codec_type) {
1304 case AVMEDIA_TYPE_AUDIO:
1305 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1306 ist->st->codec->sample_rate;
1308 case AVMEDIA_TYPE_VIDEO:
1309 if (ist->st->codec->time_base.num != 0) {
1310 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1311 ist->next_dts += ((int64_t)AV_TIME_BASE *
1312 ist->st->codec->time_base.num * ticks) /
1313 ist->st->codec->time_base.den;
1318 for (i = 0; pkt && i < nb_output_streams; i++) {
1319 OutputStream *ost = output_streams[i];
1321 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1324 do_streamcopy(ist, ost, pkt);
1330 static void print_sdp(void)
1334 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1338 for (i = 0; i < nb_output_files; i++)
1339 avc[i] = output_files[i]->ctx;
1341 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1342 printf("SDP:\n%s\n", sdp);
1347 static int init_input_stream(int ist_index, char *error, int error_len)
1350 InputStream *ist = input_streams[ist_index];
1351 if (ist->decoding_needed) {
1352 AVCodec *codec = ist->dec;
1354 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1355 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1356 return AVERROR(EINVAL);
1359 /* update requested sample format for the decoder based on the
1360 corresponding encoder sample format */
1361 for (i = 0; i < nb_output_streams; i++) {
1362 OutputStream *ost = output_streams[i];
1363 if (ost->source_index == ist_index) {
1364 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1369 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1371 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1372 av_dict_set(&ist->opts, "threads", "auto", 0);
1373 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1374 if (ret == AVERROR_EXPERIMENTAL)
1375 abort_codec_experimental(codec, 0);
1376 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1377 ist->file_index, ist->st->index);
1380 assert_avoptions(ist->opts);
1383 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1384 ist->next_dts = AV_NOPTS_VALUE;
1385 init_pts_correction(&ist->pts_ctx);
1391 static InputStream *get_input_stream(OutputStream *ost)
1393 if (ost->source_index >= 0)
1394 return input_streams[ost->source_index];
1397 FilterGraph *fg = ost->filter->graph;
1400 for (i = 0; i < fg->nb_inputs; i++)
1401 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
1402 return fg->inputs[i]->ist;
1408 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1409 AVCodecContext *avctx)
1415 for (p = kf; *p; p++)
1418 ost->forced_kf_count = n;
1419 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1420 if (!ost->forced_kf_pts) {
1421 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1426 for (i = 0; i < n; i++) {
1427 char *next = strchr(p, ',');
1432 t = parse_time_or_die("force_key_frames", p, 1);
1433 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1439 static int transcode_init(void)
1441 int ret = 0, i, j, k;
1442 AVFormatContext *oc;
1443 AVCodecContext *codec;
1449 /* init framerate emulation */
1450 for (i = 0; i < nb_input_files; i++) {
1451 InputFile *ifile = input_files[i];
1452 if (ifile->rate_emu)
1453 for (j = 0; j < ifile->nb_streams; j++)
1454 input_streams[j + ifile->ist_index]->start = av_gettime();
1457 /* output stream init */
1458 for (i = 0; i < nb_output_files; i++) {
1459 oc = output_files[i]->ctx;
1460 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1461 av_dump_format(oc, i, oc->filename, 1);
1462 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1463 return AVERROR(EINVAL);
1467 /* init complex filtergraphs */
1468 for (i = 0; i < nb_filtergraphs; i++)
1469 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1472 /* for each output stream, we compute the right encoding parameters */
1473 for (i = 0; i < nb_output_streams; i++) {
1474 AVCodecContext *icodec = NULL;
1475 ost = output_streams[i];
1476 oc = output_files[ost->file_index]->ctx;
1477 ist = get_input_stream(ost);
1479 if (ost->attachment_filename)
1482 codec = ost->st->codec;
1485 icodec = ist->st->codec;
1487 ost->st->disposition = ist->st->disposition;
1488 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1489 codec->chroma_sample_location = icodec->chroma_sample_location;
1492 if (ost->stream_copy) {
1493 uint64_t extra_size;
1495 av_assert0(ist && !ost->filter);
1497 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1499 if (extra_size > INT_MAX) {
1500 return AVERROR(EINVAL);
1503 /* if stream_copy is selected, no need to decode or encode */
1504 codec->codec_id = icodec->codec_id;
1505 codec->codec_type = icodec->codec_type;
1507 if (!codec->codec_tag) {
1508 if (!oc->oformat->codec_tag ||
1509 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
1510 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
1511 codec->codec_tag = icodec->codec_tag;
1514 codec->bit_rate = icodec->bit_rate;
1515 codec->rc_max_rate = icodec->rc_max_rate;
1516 codec->rc_buffer_size = icodec->rc_buffer_size;
1517 codec->field_order = icodec->field_order;
1518 codec->extradata = av_mallocz(extra_size);
1519 if (!codec->extradata) {
1520 return AVERROR(ENOMEM);
1522 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1523 codec->extradata_size = icodec->extradata_size;
1525 codec->time_base = icodec->time_base;
1526 codec->time_base.num *= icodec->ticks_per_frame;
1527 av_reduce(&codec->time_base.num, &codec->time_base.den,
1528 codec->time_base.num, codec->time_base.den, INT_MAX);
1530 codec->time_base = ist->st->time_base;
1532 switch (codec->codec_type) {
1533 case AVMEDIA_TYPE_AUDIO:
1534 if (audio_volume != 256) {
1535 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1538 codec->channel_layout = icodec->channel_layout;
1539 codec->sample_rate = icodec->sample_rate;
1540 codec->channels = icodec->channels;
1541 codec->frame_size = icodec->frame_size;
1542 codec->audio_service_type = icodec->audio_service_type;
1543 codec->block_align = icodec->block_align;
1545 case AVMEDIA_TYPE_VIDEO:
1546 codec->pix_fmt = icodec->pix_fmt;
1547 codec->width = icodec->width;
1548 codec->height = icodec->height;
1549 codec->has_b_frames = icodec->has_b_frames;
1550 if (!codec->sample_aspect_ratio.num) {
1551 codec->sample_aspect_ratio =
1552 ost->st->sample_aspect_ratio =
1553 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1554 ist->st->codec->sample_aspect_ratio.num ?
1555 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1558 case AVMEDIA_TYPE_SUBTITLE:
1559 codec->width = icodec->width;
1560 codec->height = icodec->height;
1562 case AVMEDIA_TYPE_DATA:
1563 case AVMEDIA_TYPE_ATTACHMENT:
1570 /* should only happen when a default codec is not present. */
1571 snprintf(error, sizeof(error), "Automatic encoder selection "
1572 "failed for output stream #%d:%d. Default encoder for "
1573 "format %s is probably disabled. Please choose an "
1574 "encoder manually.\n", ost->file_index, ost->index,
1576 ret = AVERROR(EINVAL);
1581 ist->decoding_needed = 1;
1582 ost->encoding_needed = 1;
1585 * We want CFR output if and only if one of those is true:
1586 * 1) user specified output framerate with -r
1587 * 2) user specified -vsync cfr
1588 * 3) output format is CFR and the user didn't force vsync to
1589 * something else than CFR
1591 * in such a case, set ost->frame_rate
1593 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1594 !ost->frame_rate.num && ist &&
1595 (video_sync_method == VSYNC_CFR ||
1596 (video_sync_method == VSYNC_AUTO &&
1597 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1598 ost->frame_rate = ist->framerate.num ? ist->framerate :
1599 ist->st->avg_frame_rate.num ?
1600 ist->st->avg_frame_rate :
1601 (AVRational){25, 1};
1603 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1604 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1605 ost->frame_rate = ost->enc->supported_framerates[idx];
1610 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
1611 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
1613 fg = init_simple_filtergraph(ist, ost);
1614 if (configure_filtergraph(fg)) {
1615 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1620 switch (codec->codec_type) {
1621 case AVMEDIA_TYPE_AUDIO:
1622 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
1623 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1624 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1625 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
1626 codec->time_base = (AVRational){ 1, codec->sample_rate };
1628 case AVMEDIA_TYPE_VIDEO:
1629 codec->time_base = ost->filter->filter->inputs[0]->time_base;
1631 codec->width = ost->filter->filter->inputs[0]->w;
1632 codec->height = ost->filter->filter->inputs[0]->h;
1633 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1634 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1635 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
1636 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1637 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
1640 (codec->width != icodec->width ||
1641 codec->height != icodec->height ||
1642 codec->pix_fmt != icodec->pix_fmt)) {
1643 codec->bits_per_raw_sample = 0;
1646 if (ost->forced_keyframes)
1647 parse_forced_key_frames(ost->forced_keyframes, ost,
1650 case AVMEDIA_TYPE_SUBTITLE:
1651 codec->time_base = (AVRational){1, 1000};
1658 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1659 char logfilename[1024];
1662 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1663 ost->logfile_prefix ? ost->logfile_prefix :
1664 DEFAULT_PASS_LOGFILENAME_PREFIX,
1666 if (!strcmp(ost->enc->name, "libx264")) {
1667 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1669 if (codec->flags & CODEC_FLAG_PASS1) {
1670 f = fopen(logfilename, "wb");
1672 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1673 logfilename, strerror(errno));
1679 size_t logbuffer_size;
1680 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1681 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1685 codec->stats_in = logbuffer;
1692 /* open each encoder */
1693 for (i = 0; i < nb_output_streams; i++) {
1694 ost = output_streams[i];
1695 if (ost->encoding_needed) {
1696 AVCodec *codec = ost->enc;
1697 AVCodecContext *dec = NULL;
1699 if ((ist = get_input_stream(ost)))
1700 dec = ist->st->codec;
1701 if (dec && dec->subtitle_header) {
1702 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1703 if (!ost->st->codec->subtitle_header) {
1704 ret = AVERROR(ENOMEM);
1707 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1708 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1710 if (!av_dict_get(ost->opts, "threads", NULL, 0))
1711 av_dict_set(&ost->opts, "threads", "auto", 0);
1712 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
1713 if (ret == AVERROR_EXPERIMENTAL)
1714 abort_codec_experimental(codec, 1);
1715 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1716 ost->file_index, ost->index);
1719 assert_avoptions(ost->opts);
1720 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1721 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1722 "It takes bits/s as argument, not kbits/s\n");
1723 extra_size += ost->st->codec->extradata_size;
1725 if (ost->st->codec->me_threshold)
1726 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
1728 av_opt_set_dict(ost->st->codec, &ost->opts);
1732 /* init input streams */
1733 for (i = 0; i < nb_input_streams; i++)
1734 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1737 /* discard unused programs */
1738 for (i = 0; i < nb_input_files; i++) {
1739 InputFile *ifile = input_files[i];
1740 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1741 AVProgram *p = ifile->ctx->programs[j];
1742 int discard = AVDISCARD_ALL;
1744 for (k = 0; k < p->nb_stream_indexes; k++)
1745 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1746 discard = AVDISCARD_DEFAULT;
1749 p->discard = discard;
1753 /* open files and write file headers */
1754 for (i = 0; i < nb_output_files; i++) {
1755 oc = output_files[i]->ctx;
1756 oc->interrupt_callback = int_cb;
1757 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1759 const char *errbuf_ptr = errbuf;
1760 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
1761 errbuf_ptr = strerror(AVUNERROR(ret));
1762 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
1763 ret = AVERROR(EINVAL);
1766 assert_avoptions(output_files[i]->opts);
1767 if (strcmp(oc->oformat->name, "rtp")) {
1773 /* dump the file output parameters - cannot be done before in case
1775 for (i = 0; i < nb_output_files; i++) {
1776 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
1779 /* dump the stream mapping */
1780 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
1781 for (i = 0; i < nb_input_streams; i++) {
1782 ist = input_streams[i];
1784 for (j = 0; j < ist->nb_filters; j++) {
1785 if (ist->filters[j]->graph->graph_desc) {
1786 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1787 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
1788 ist->filters[j]->name);
1789 if (nb_filtergraphs > 1)
1790 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1791 av_log(NULL, AV_LOG_INFO, "\n");
1796 for (i = 0; i < nb_output_streams; i++) {
1797 ost = output_streams[i];
1799 if (ost->attachment_filename) {
1800 /* an attached file */
1801 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
1802 ost->attachment_filename, ost->file_index, ost->index);
1806 if (ost->filter && ost->filter->graph->graph_desc) {
1807 /* output from a complex graph */
1808 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
1809 if (nb_filtergraphs > 1)
1810 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
1812 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
1813 ost->index, ost->enc ? ost->enc->name : "?");
1817 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
1818 input_streams[ost->source_index]->file_index,
1819 input_streams[ost->source_index]->st->index,
1822 if (ost->sync_ist != input_streams[ost->source_index])
1823 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
1824 ost->sync_ist->file_index,
1825 ost->sync_ist->st->index);
1826 if (ost->stream_copy)
1827 av_log(NULL, AV_LOG_INFO, " (copy)");
1829 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
1830 input_streams[ost->source_index]->dec->name : "?",
1831 ost->enc ? ost->enc->name : "?");
1832 av_log(NULL, AV_LOG_INFO, "\n");
1836 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
1847 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
1848 static int need_output(void)
1852 for (i = 0; i < nb_output_streams; i++) {
1853 OutputStream *ost = output_streams[i];
1854 OutputFile *of = output_files[ost->file_index];
1855 AVFormatContext *os = output_files[ost->file_index]->ctx;
1857 if (ost->finished ||
1858 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
1860 if (ost->frame_number >= ost->max_frames) {
1862 for (j = 0; j < of->ctx->nb_streams; j++)
1863 output_streams[of->ost_index + j]->finished = 1;
1873 static InputFile *select_input_file(void)
1875 InputFile *ifile = NULL;
1876 int64_t ipts_min = INT64_MAX;
1879 for (i = 0; i < nb_input_streams; i++) {
1880 InputStream *ist = input_streams[i];
1881 int64_t ipts = ist->last_dts;
1883 if (ist->discard || input_files[ist->file_index]->eagain)
1885 if (!input_files[ist->file_index]->eof_reached) {
1886 if (ipts < ipts_min) {
1888 ifile = input_files[ist->file_index];
1897 static void *input_thread(void *arg)
1902 while (!transcoding_finished && ret >= 0) {
1904 ret = av_read_frame(f->ctx, &pkt);
1906 if (ret == AVERROR(EAGAIN)) {
1913 pthread_mutex_lock(&f->fifo_lock);
1914 while (!av_fifo_space(f->fifo))
1915 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
1917 av_dup_packet(&pkt);
1918 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
1920 pthread_mutex_unlock(&f->fifo_lock);
1927 static void free_input_threads(void)
1931 if (nb_input_files == 1)
1934 transcoding_finished = 1;
1936 for (i = 0; i < nb_input_files; i++) {
1937 InputFile *f = input_files[i];
1940 if (!f->fifo || f->joined)
1943 pthread_mutex_lock(&f->fifo_lock);
1944 while (av_fifo_size(f->fifo)) {
1945 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
1946 av_free_packet(&pkt);
1948 pthread_cond_signal(&f->fifo_cond);
1949 pthread_mutex_unlock(&f->fifo_lock);
1951 pthread_join(f->thread, NULL);
1954 while (av_fifo_size(f->fifo)) {
1955 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
1956 av_free_packet(&pkt);
1958 av_fifo_free(f->fifo);
1962 static int init_input_threads(void)
1966 if (nb_input_files == 1)
1969 for (i = 0; i < nb_input_files; i++) {
1970 InputFile *f = input_files[i];
1972 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
1973 return AVERROR(ENOMEM);
1975 pthread_mutex_init(&f->fifo_lock, NULL);
1976 pthread_cond_init (&f->fifo_cond, NULL);
1978 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
1979 return AVERROR(ret);
1984 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
1988 pthread_mutex_lock(&f->fifo_lock);
1990 if (av_fifo_size(f->fifo)) {
1991 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
1992 pthread_cond_signal(&f->fifo_cond);
1997 ret = AVERROR(EAGAIN);
2000 pthread_mutex_unlock(&f->fifo_lock);
2006 static int get_input_packet(InputFile *f, AVPacket *pkt)
2010 for (i = 0; i < f->nb_streams; i++) {
2011 InputStream *ist = input_streams[f->ist_index + i];
2012 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2013 int64_t now = av_gettime() - ist->start;
2015 return AVERROR(EAGAIN);
2020 if (nb_input_files > 1)
2021 return get_input_packet_mt(f, pkt);
2023 return av_read_frame(f->ctx, pkt);
2026 static int got_eagain(void)
2029 for (i = 0; i < nb_input_files; i++)
2030 if (input_files[i]->eagain)
2035 static void reset_eagain(void)
2038 for (i = 0; i < nb_input_files; i++)
2039 input_files[i]->eagain = 0;
2043 * Read one packet from an input file and send it for
2044 * - decoding -> lavfi (audio/video)
2045 * - decoding -> encoding -> muxing (subtitles)
2046 * - muxing (streamcopy)
2049 * - 0 -- one packet was read and processed
2050 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2051 * this function should be called again
2052 * - AVERROR_EOF -- this function should not be called again
2054 static int process_input(void)
2057 AVFormatContext *is;
2062 /* select the stream that we must read now */
2063 ifile = select_input_file();
2064 /* if none, if is finished */
2069 return AVERROR(EAGAIN);
2071 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2076 ret = get_input_packet(ifile, &pkt);
2078 if (ret == AVERROR(EAGAIN)) {
2083 if (ret != AVERROR_EOF) {
2084 print_error(is->filename, ret);
2088 ifile->eof_reached = 1;
2090 for (i = 0; i < ifile->nb_streams; i++) {
2091 ist = input_streams[ifile->ist_index + i];
2092 if (ist->decoding_needed)
2093 output_packet(ist, NULL);
2095 /* mark all outputs that don't go through lavfi as finished */
2096 for (j = 0; j < nb_output_streams; j++) {
2097 OutputStream *ost = output_streams[j];
2099 if (ost->source_index == ifile->ist_index + i &&
2100 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2105 return AVERROR(EAGAIN);
2111 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2112 is->streams[pkt.stream_index]);
2114 /* the following test is needed in case new streams appear
2115 dynamically in stream : we ignore them */
2116 if (pkt.stream_index >= ifile->nb_streams)
2117 goto discard_packet;
2119 ist = input_streams[ifile->ist_index + pkt.stream_index];
2121 goto discard_packet;
2123 if (pkt.dts != AV_NOPTS_VALUE)
2124 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2125 if (pkt.pts != AV_NOPTS_VALUE)
2126 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2128 if (pkt.pts != AV_NOPTS_VALUE)
2129 pkt.pts *= ist->ts_scale;
2130 if (pkt.dts != AV_NOPTS_VALUE)
2131 pkt.dts *= ist->ts_scale;
2133 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2134 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2135 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2136 int64_t delta = pkt_dts - ist->next_dts;
2138 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2139 ifile->ts_offset -= delta;
2140 av_log(NULL, AV_LOG_DEBUG,
2141 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2142 delta, ifile->ts_offset);
2143 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2144 if (pkt.pts != AV_NOPTS_VALUE)
2145 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2149 ret = output_packet(ist, &pkt);
2151 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2152 ist->file_index, ist->st->index);
2158 av_free_packet(&pkt);
2164 * The following code is the main loop of the file converter
2166 static int transcode(void)
2168 int ret, i, need_input = 1;
2169 AVFormatContext *os;
2172 int64_t timer_start;
2174 ret = transcode_init();
2178 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2181 timer_start = av_gettime();
2184 if ((ret = init_input_threads()) < 0)
2188 while (!received_sigterm) {
2189 /* check if there's any stream where output is still needed */
2190 if (!need_output()) {
2191 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2195 /* read and process one input packet if needed */
2197 ret = process_input();
2198 if (ret == AVERROR_EOF)
2202 ret = poll_filters();
2204 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
2207 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2211 /* dump report by using the output first video and audio streams */
2212 print_report(0, timer_start);
2215 free_input_threads();
2218 /* at the end of stream, we must flush the decoder buffers */
2219 for (i = 0; i < nb_input_streams; i++) {
2220 ist = input_streams[i];
2221 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2222 output_packet(ist, NULL);
2230 /* write the trailer if needed and close file */
2231 for (i = 0; i < nb_output_files; i++) {
2232 os = output_files[i]->ctx;
2233 av_write_trailer(os);
2236 /* dump report by using the first video and audio streams */
2237 print_report(1, timer_start);
2239 /* close each encoder */
2240 for (i = 0; i < nb_output_streams; i++) {
2241 ost = output_streams[i];
2242 if (ost->encoding_needed) {
2243 av_freep(&ost->st->codec->stats_in);
2244 avcodec_close(ost->st->codec);
2248 /* close each decoder */
2249 for (i = 0; i < nb_input_streams; i++) {
2250 ist = input_streams[i];
2251 if (ist->decoding_needed) {
2252 avcodec_close(ist->st->codec);
2261 free_input_threads();
2264 if (output_streams) {
2265 for (i = 0; i < nb_output_streams; i++) {
2266 ost = output_streams[i];
2268 if (ost->stream_copy)
2269 av_freep(&ost->st->codec->extradata);
2271 fclose(ost->logfile);
2272 ost->logfile = NULL;
2274 av_freep(&ost->st->codec->subtitle_header);
2275 av_free(ost->forced_kf_pts);
2276 av_dict_free(&ost->opts);
2277 av_dict_free(&ost->resample_opts);
2284 static int64_t getutime(void)
2287 struct rusage rusage;
2289 getrusage(RUSAGE_SELF, &rusage);
2290 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2291 #elif HAVE_GETPROCESSTIMES
2293 FILETIME c, e, k, u;
2294 proc = GetCurrentProcess();
2295 GetProcessTimes(proc, &c, &e, &k, &u);
2296 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2298 return av_gettime();
2302 static int64_t getmaxrss(void)
2304 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2305 struct rusage rusage;
2306 getrusage(RUSAGE_SELF, &rusage);
2307 return (int64_t)rusage.ru_maxrss * 1024;
2308 #elif HAVE_GETPROCESSMEMORYINFO
2310 PROCESS_MEMORY_COUNTERS memcounters;
2311 proc = GetCurrentProcess();
2312 memcounters.cb = sizeof(memcounters);
2313 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2314 return memcounters.PeakPagefileUsage;
2320 int main(int argc, char **argv)
2325 atexit(exit_program);
2327 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2328 parse_loglevel(argc, argv, options);
2330 avcodec_register_all();
2332 avdevice_register_all();
2334 avfilter_register_all();
2336 avformat_network_init();
2340 /* parse options and open all input/output files */
2341 ret = avconv_parse_options(argc, argv);
2345 if (nb_output_files <= 0 && nb_input_files == 0) {
2347 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2351 /* file converter / grab */
2352 if (nb_output_files <= 0) {
2353 fprintf(stderr, "At least one output file must be specified\n");
2358 if (transcode() < 0)
2360 ti = getutime() - ti;
2362 int maxrss = getmaxrss() / 1024;
2363 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);