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/avfiltergraph.h"
52 # include "libavfilter/buffersrc.h"
53 # include "libavfilter/buffersink.h"
55 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
62 #if HAVE_GETPROCESSMEMORYINFO
68 #include <sys/select.h>
80 #include "libavutil/avassert.h"
82 const char program_name[] = "avconv";
83 const int program_birth_year = 2000;
85 static FILE *vstats_file;
87 static int64_t video_size = 0;
88 static int64_t audio_size = 0;
89 static int64_t extra_size = 0;
90 static int nb_frames_dup = 0;
91 static int nb_frames_drop = 0;
96 /* signal to input threads that they should exit; set by the main thread */
97 static int transcoding_finished;
100 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
102 InputStream **input_streams = NULL;
103 int nb_input_streams = 0;
104 InputFile **input_files = NULL;
105 int nb_input_files = 0;
107 OutputStream **output_streams = NULL;
108 int nb_output_streams = 0;
109 OutputFile **output_files = NULL;
110 int nb_output_files = 0;
112 FilterGraph **filtergraphs;
115 static void term_exit(void)
117 av_log(NULL, AV_LOG_QUIET, "");
120 static volatile int received_sigterm = 0;
121 static volatile int received_nb_signals = 0;
124 sigterm_handler(int sig)
126 received_sigterm = sig;
127 received_nb_signals++;
131 static void term_init(void)
133 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
134 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
136 signal(SIGXCPU, sigterm_handler);
140 static int decode_interrupt_cb(void *ctx)
142 return received_nb_signals > 1;
145 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
147 static void exit_program(void)
151 for (i = 0; i < nb_filtergraphs; i++) {
152 avfilter_graph_free(&filtergraphs[i]->graph);
153 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
154 av_freep(&filtergraphs[i]->inputs[j]->name);
155 av_freep(&filtergraphs[i]->inputs[j]);
157 av_freep(&filtergraphs[i]->inputs);
158 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
159 av_freep(&filtergraphs[i]->outputs[j]->name);
160 av_freep(&filtergraphs[i]->outputs[j]);
162 av_freep(&filtergraphs[i]->outputs);
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);
215 avformat_network_deinit();
217 if (received_sigterm) {
218 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
219 (int) received_sigterm);
224 void assert_avoptions(AVDictionary *m)
226 AVDictionaryEntry *t;
227 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
228 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
233 static void abort_codec_experimental(AVCodec *c, int encoder)
235 const char *codec_string = encoder ? "encoder" : "decoder";
237 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
238 "results.\nAdd '-strict experimental' if you want to use it.\n",
239 codec_string, c->name);
240 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
241 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
242 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
243 codec_string, codec->name);
248 * Update the requested input sample format based on the output sample format.
249 * This is currently only used to request float output from decoders which
250 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
251 * Ideally this will be removed in the future when decoders do not do format
252 * conversion and only output in their native format.
254 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
257 /* if sample formats match or a decoder sample format has already been
258 requested, just return */
259 if (enc->sample_fmt == dec->sample_fmt ||
260 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
263 /* if decoder supports more than one output format */
264 if (dec_codec && dec_codec->sample_fmts &&
265 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
266 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
267 const enum AVSampleFormat *p;
268 int min_dec = INT_MAX, min_inc = INT_MAX;
269 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
270 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
272 /* find a matching sample format in the encoder */
273 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
274 if (*p == enc->sample_fmt) {
275 dec->request_sample_fmt = *p;
278 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
279 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
280 int fmt_diff = 32 * abs(dfmt - efmt);
281 if (av_sample_fmt_is_planar(*p) !=
282 av_sample_fmt_is_planar(enc->sample_fmt))
287 } else if (dfmt > efmt) {
288 if (fmt_diff < min_inc) {
293 if (fmt_diff < min_dec) {
301 /* if none match, provide the one that matches quality closest */
302 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
306 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
308 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
309 AVCodecContext *avctx = ost->st->codec;
313 * Audio encoders may split the packets -- #frames in != #packets out.
314 * But there is no reordering, so we can limit the number of output packets
315 * by simply dropping them here.
316 * Counting encoded video frames needs to be done separately because of
317 * reordering, see do_video_out()
319 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
320 if (ost->frame_number >= ost->max_frames) {
328 AVPacket new_pkt = *pkt;
329 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
330 &new_pkt.data, &new_pkt.size,
331 pkt->data, pkt->size,
332 pkt->flags & AV_PKT_FLAG_KEY);
335 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
336 av_buffer_default_free, NULL, 0);
340 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
341 bsfc->filter->name, pkt->stream_index,
342 avctx->codec ? avctx->codec->name : "copy");
352 pkt->stream_index = ost->index;
353 ret = av_interleaved_write_frame(s, pkt);
355 print_error("av_interleaved_write_frame()", ret);
360 static int check_recording_time(OutputStream *ost)
362 OutputFile *of = output_files[ost->file_index];
364 if (of->recording_time != INT64_MAX &&
365 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
366 AV_TIME_BASE_Q) >= 0) {
373 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
376 AVCodecContext *enc = ost->st->codec;
380 av_init_packet(&pkt);
384 if (!check_recording_time(ost))
387 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
388 frame->pts = ost->sync_opts;
389 ost->sync_opts = frame->pts + frame->nb_samples;
391 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
392 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
397 if (pkt.pts != AV_NOPTS_VALUE)
398 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
399 if (pkt.dts != AV_NOPTS_VALUE)
400 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
401 if (pkt.duration > 0)
402 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
404 write_frame(s, &pkt, ost);
406 audio_size += pkt.size;
410 #if FF_API_DEINTERLACE
411 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
415 AVPicture picture_tmp;
418 dec = ist->st->codec;
420 /* deinterlace : must be done before any resize */
421 if (do_deinterlace) {
424 /* create temporary picture */
425 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
426 buf = av_malloc(size);
430 picture2 = &picture_tmp;
431 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
433 if (avpicture_deinterlace(picture2, picture,
434 dec->pix_fmt, dec->width, dec->height) < 0) {
435 /* if error, do not deinterlace */
436 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
445 if (picture != picture2)
446 *picture = *picture2;
451 static void do_subtitle_out(AVFormatContext *s,
457 static uint8_t *subtitle_out = NULL;
458 int subtitle_out_max_size = 1024 * 1024;
459 int subtitle_out_size, nb, i;
463 if (pts == AV_NOPTS_VALUE) {
464 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
470 enc = ost->st->codec;
473 subtitle_out = av_malloc(subtitle_out_max_size);
476 /* Note: DVB subtitle need one packet to draw them and one other
477 packet to clear them */
478 /* XXX: signal it in the codec context ? */
479 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
484 for (i = 0; i < nb; i++) {
485 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
486 if (!check_recording_time(ost))
489 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
490 // start_display_time is required to be 0
491 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
492 sub->end_display_time -= sub->start_display_time;
493 sub->start_display_time = 0;
494 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
495 subtitle_out_max_size, sub);
496 if (subtitle_out_size < 0) {
497 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
501 av_init_packet(&pkt);
502 pkt.data = subtitle_out;
503 pkt.size = subtitle_out_size;
504 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
505 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
506 /* XXX: the pts correction is handled here. Maybe handling
507 it in the codec would be better */
509 pkt.pts += 90 * sub->start_display_time;
511 pkt.pts += 90 * sub->end_display_time;
513 write_frame(s, &pkt, ost);
517 static void do_video_out(AVFormatContext *s,
522 int ret, format_video_sync;
524 AVCodecContext *enc = ost->st->codec;
528 format_video_sync = video_sync_method;
529 if (format_video_sync == VSYNC_AUTO)
530 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
531 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
532 if (format_video_sync != VSYNC_PASSTHROUGH &&
534 in_picture->pts != AV_NOPTS_VALUE &&
535 in_picture->pts < ost->sync_opts) {
537 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
541 if (in_picture->pts == AV_NOPTS_VALUE)
542 in_picture->pts = ost->sync_opts;
543 ost->sync_opts = in_picture->pts;
546 if (!ost->frame_number)
547 ost->first_pts = in_picture->pts;
549 av_init_packet(&pkt);
553 if (!check_recording_time(ost) ||
554 ost->frame_number >= ost->max_frames)
557 if (s->oformat->flags & AVFMT_RAWPICTURE &&
558 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
559 /* raw pictures are written as AVPicture structure to
560 avoid any copies. We support temporarily the older
562 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
563 enc->coded_frame->top_field_first = in_picture->top_field_first;
564 pkt.data = (uint8_t *)in_picture;
565 pkt.size = sizeof(AVPicture);
566 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
567 pkt.flags |= AV_PKT_FLAG_KEY;
569 write_frame(s, &pkt, ost);
573 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
574 ost->top_field_first >= 0)
575 in_picture->top_field_first = !!ost->top_field_first;
577 in_picture->quality = ost->st->codec->global_quality;
578 if (!enc->me_threshold)
579 in_picture->pict_type = 0;
580 if (ost->forced_kf_index < ost->forced_kf_count &&
581 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
582 in_picture->pict_type = AV_PICTURE_TYPE_I;
583 ost->forced_kf_index++;
585 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
587 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
592 if (pkt.pts != AV_NOPTS_VALUE)
593 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
594 if (pkt.dts != AV_NOPTS_VALUE)
595 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
597 write_frame(s, &pkt, ost);
598 *frame_size = pkt.size;
599 video_size += pkt.size;
601 /* if two pass, output log */
602 if (ost->logfile && enc->stats_out) {
603 fprintf(ost->logfile, "%s", enc->stats_out);
609 * For video, number of frames in == number of packets out.
610 * But there may be reordering, so we can't throw away frames on encoder
611 * flush, we need to limit them here, before they go into encoder.
616 static double psnr(double d)
618 return -10.0 * log(d) / log(10.0);
621 static void do_video_stats(OutputStream *ost, int frame_size)
625 double ti1, bitrate, avg_bitrate;
627 /* this is executed just the first time do_video_stats is called */
629 vstats_file = fopen(vstats_filename, "w");
636 enc = ost->st->codec;
637 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
638 frame_number = ost->frame_number;
639 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
640 if (enc->flags&CODEC_FLAG_PSNR)
641 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
643 fprintf(vstats_file,"f_size= %6d ", frame_size);
644 /* compute pts value */
645 ti1 = ost->sync_opts * av_q2d(enc->time_base);
649 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
650 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
651 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
652 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
653 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
658 * Read one frame for lavfi output for ost and encode it.
660 static int poll_filter(OutputStream *ost)
662 OutputFile *of = output_files[ost->file_index];
663 AVFrame *filtered_frame = NULL;
666 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
667 return AVERROR(ENOMEM);
669 avcodec_get_frame_defaults(ost->filtered_frame);
670 filtered_frame = ost->filtered_frame;
672 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
673 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
674 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
675 ost->st->codec->frame_size);
677 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
682 if (filtered_frame->pts != AV_NOPTS_VALUE) {
683 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
684 ost->filter->filter->inputs[0]->time_base,
685 ost->st->codec->time_base) -
686 av_rescale_q(of->start_time,
688 ost->st->codec->time_base);
690 if (of->start_time && filtered_frame->pts < 0) {
691 av_frame_unref(filtered_frame);
696 switch (ost->filter->filter->inputs[0]->type) {
697 case AVMEDIA_TYPE_VIDEO:
698 if (!ost->frame_aspect_ratio)
699 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
701 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
702 if (vstats_filename && frame_size)
703 do_video_stats(ost, frame_size);
705 case AVMEDIA_TYPE_AUDIO:
706 do_audio_out(of->ctx, ost, filtered_frame);
709 // TODO support subtitle filters
713 av_frame_unref(filtered_frame);
719 * Read as many frames from possible from lavfi and encode them.
721 * Always read from the active stream with the lowest timestamp. If no frames
722 * are available for it then return EAGAIN and wait for more input. This way we
723 * can use lavfi sources that generate unlimited amount of frames without memory
726 static int poll_filters(void)
730 while (ret >= 0 && !received_sigterm) {
731 OutputStream *ost = NULL;
732 int64_t min_pts = INT64_MAX;
734 /* choose output stream with the lowest timestamp */
735 for (i = 0; i < nb_output_streams; i++) {
736 int64_t pts = output_streams[i]->sync_opts;
738 if (!output_streams[i]->filter || output_streams[i]->finished)
741 pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
745 ost = output_streams[i];
752 ret = poll_filter(ost);
754 if (ret == AVERROR_EOF) {
755 OutputFile *of = output_files[ost->file_index];
760 for (j = 0; j < of->ctx->nb_streams; j++)
761 output_streams[of->ost_index + j]->finished = 1;
765 } else if (ret == AVERROR(EAGAIN))
772 static void print_report(int is_last_report, int64_t timer_start)
779 int frame_number, vid, i;
780 double bitrate, ti1, pts;
781 static int64_t last_time = -1;
782 static int qp_histogram[52];
784 if (!print_stats && !is_last_report)
787 if (!is_last_report) {
789 /* display the report every 0.5 seconds */
790 cur_time = av_gettime();
791 if (last_time == -1) {
792 last_time = cur_time;
795 if ((cur_time - last_time) < 500000)
797 last_time = cur_time;
801 oc = output_files[0]->ctx;
803 total_size = avio_size(oc->pb);
804 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
805 total_size = avio_tell(oc->pb);
806 if (total_size < 0) {
808 av_strerror(total_size, errbuf, sizeof(errbuf));
809 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
810 "avio_tell() failed: %s\n", errbuf);
817 for (i = 0; i < nb_output_streams; i++) {
819 ost = output_streams[i];
820 enc = ost->st->codec;
821 if (!ost->stream_copy && enc->coded_frame)
822 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
823 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
824 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
826 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
827 float t = (av_gettime() - timer_start) / 1000000.0;
829 frame_number = ost->frame_number;
830 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
831 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
833 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
837 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
839 for (j = 0; j < 32; j++)
840 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
842 if (enc->flags&CODEC_FLAG_PSNR) {
844 double error, error_sum = 0;
845 double scale, scale_sum = 0;
846 char type[3] = { 'Y','U','V' };
847 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
848 for (j = 0; j < 3; j++) {
849 if (is_last_report) {
850 error = enc->error[j];
851 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
853 error = enc->coded_frame->error[j];
854 scale = enc->width * enc->height * 255.0 * 255.0;
860 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
862 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
866 /* compute min output value */
867 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
868 if ((pts < ti1) && (pts > 0))
874 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
876 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
877 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
878 (double)total_size / 1024, ti1, bitrate);
880 if (nb_frames_dup || nb_frames_drop)
881 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
882 nb_frames_dup, nb_frames_drop);
884 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
888 if (is_last_report) {
889 int64_t raw= audio_size + video_size + extra_size;
890 av_log(NULL, AV_LOG_INFO, "\n");
891 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
895 100.0 * (total_size - raw) / raw
900 static void flush_encoders(void)
904 for (i = 0; i < nb_output_streams; i++) {
905 OutputStream *ost = output_streams[i];
906 AVCodecContext *enc = ost->st->codec;
907 AVFormatContext *os = output_files[ost->file_index]->ctx;
908 int stop_encoding = 0;
910 if (!ost->encoding_needed)
913 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
915 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
919 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
923 switch (ost->st->codec->codec_type) {
924 case AVMEDIA_TYPE_AUDIO:
925 encode = avcodec_encode_audio2;
929 case AVMEDIA_TYPE_VIDEO:
930 encode = avcodec_encode_video2;
941 av_init_packet(&pkt);
945 ret = encode(enc, &pkt, NULL, &got_packet);
947 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
951 if (ost->logfile && enc->stats_out) {
952 fprintf(ost->logfile, "%s", enc->stats_out);
958 if (pkt.pts != AV_NOPTS_VALUE)
959 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
960 if (pkt.dts != AV_NOPTS_VALUE)
961 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
962 if (pkt.duration > 0)
963 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
964 write_frame(os, &pkt, ost);
974 * Check whether a packet from ist should be written into ost at this time
976 static int check_output_constraints(InputStream *ist, OutputStream *ost)
978 OutputFile *of = output_files[ost->file_index];
979 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
981 if (ost->source_index != ist_index)
984 if (of->start_time && ist->last_dts < of->start_time)
990 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
992 OutputFile *of = output_files[ost->file_index];
993 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
996 av_init_packet(&opkt);
998 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
999 !ost->copy_initial_nonkeyframes)
1002 if (of->recording_time != INT64_MAX &&
1003 ist->last_dts >= of->recording_time + of->start_time) {
1008 /* force the input stream PTS */
1009 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1010 audio_size += pkt->size;
1011 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1012 video_size += pkt->size;
1016 if (pkt->pts != AV_NOPTS_VALUE)
1017 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1019 opkt.pts = AV_NOPTS_VALUE;
1021 if (pkt->dts == AV_NOPTS_VALUE)
1022 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1024 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1025 opkt.dts -= ost_tb_start_time;
1027 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1028 opkt.flags = pkt->flags;
1030 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1031 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1032 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1033 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1034 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1036 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) {
1037 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1042 opkt.data = pkt->data;
1043 opkt.size = pkt->size;
1046 write_frame(of->ctx, &opkt, ost);
1047 ost->st->codec->frame_number++;
1050 static void rate_emu_sleep(InputStream *ist)
1052 if (input_files[ist->file_index]->rate_emu) {
1053 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
1054 int64_t now = av_gettime() - ist->start;
1056 av_usleep(pts - now);
1060 int guess_input_channel_layout(InputStream *ist)
1062 AVCodecContext *dec = ist->st->codec;
1064 if (!dec->channel_layout) {
1065 char layout_name[256];
1067 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1068 if (!dec->channel_layout)
1070 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1071 dec->channels, dec->channel_layout);
1072 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1073 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1078 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1080 AVFrame *decoded_frame, *f;
1081 AVCodecContext *avctx = ist->st->codec;
1082 int i, ret, err = 0, resample_changed;
1084 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1085 return AVERROR(ENOMEM);
1086 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1087 return AVERROR(ENOMEM);
1088 decoded_frame = ist->decoded_frame;
1090 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1091 if (!*got_output || ret < 0) {
1093 for (i = 0; i < ist->nb_filters; i++)
1094 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1099 /* if the decoder provides a pts, use it instead of the last packet pts.
1100 the decoder could be delaying output by a packet or more. */
1101 if (decoded_frame->pts != AV_NOPTS_VALUE)
1102 ist->next_dts = decoded_frame->pts;
1103 else if (pkt->pts != AV_NOPTS_VALUE) {
1104 decoded_frame->pts = pkt->pts;
1105 pkt->pts = AV_NOPTS_VALUE;
1108 rate_emu_sleep(ist);
1110 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1111 ist->resample_channels != avctx->channels ||
1112 ist->resample_channel_layout != decoded_frame->channel_layout ||
1113 ist->resample_sample_rate != decoded_frame->sample_rate;
1114 if (resample_changed) {
1115 char layout1[64], layout2[64];
1117 if (!guess_input_channel_layout(ist)) {
1118 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1119 "layout for Input Stream #%d.%d\n", ist->file_index,
1123 decoded_frame->channel_layout = avctx->channel_layout;
1125 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1126 ist->resample_channel_layout);
1127 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1128 decoded_frame->channel_layout);
1130 av_log(NULL, AV_LOG_INFO,
1131 "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",
1132 ist->file_index, ist->st->index,
1133 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1134 ist->resample_channels, layout1,
1135 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1136 avctx->channels, layout2);
1138 ist->resample_sample_fmt = decoded_frame->format;
1139 ist->resample_sample_rate = decoded_frame->sample_rate;
1140 ist->resample_channel_layout = decoded_frame->channel_layout;
1141 ist->resample_channels = avctx->channels;
1143 for (i = 0; i < nb_filtergraphs; i++)
1144 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1145 configure_filtergraph(filtergraphs[i]) < 0) {
1146 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1151 if (decoded_frame->pts != AV_NOPTS_VALUE)
1152 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1154 (AVRational){1, ist->st->codec->sample_rate});
1155 for (i = 0; i < ist->nb_filters; i++) {
1156 if (i < ist->nb_filters - 1) {
1157 f = ist->filter_frame;
1158 err = av_frame_ref(f, decoded_frame);
1164 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1169 av_frame_unref(ist->filter_frame);
1170 av_frame_unref(decoded_frame);
1171 return err < 0 ? err : ret;
1174 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1176 AVFrame *decoded_frame, *f;
1177 void *buffer_to_free = NULL;
1178 int i, ret = 0, err = 0, resample_changed;
1180 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1181 return AVERROR(ENOMEM);
1182 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1183 return AVERROR(ENOMEM);
1184 decoded_frame = ist->decoded_frame;
1186 ret = avcodec_decode_video2(ist->st->codec,
1187 decoded_frame, got_output, pkt);
1188 if (!*got_output || ret < 0) {
1190 for (i = 0; i < ist->nb_filters; i++)
1191 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1196 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1197 decoded_frame->pkt_dts);
1199 #if FF_API_DEINTERLACE
1200 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1203 rate_emu_sleep(ist);
1205 if (ist->st->sample_aspect_ratio.num)
1206 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1208 resample_changed = ist->resample_width != decoded_frame->width ||
1209 ist->resample_height != decoded_frame->height ||
1210 ist->resample_pix_fmt != decoded_frame->format;
1211 if (resample_changed) {
1212 av_log(NULL, AV_LOG_INFO,
1213 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1214 ist->file_index, ist->st->index,
1215 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1216 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1218 ret = poll_filters();
1219 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1220 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1222 ist->resample_width = decoded_frame->width;
1223 ist->resample_height = decoded_frame->height;
1224 ist->resample_pix_fmt = decoded_frame->format;
1226 for (i = 0; i < nb_filtergraphs; i++)
1227 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1228 configure_filtergraph(filtergraphs[i]) < 0) {
1229 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1234 for (i = 0; i < ist->nb_filters; i++) {
1235 if (i < ist->nb_filters - 1) {
1236 f = ist->filter_frame;
1237 err = av_frame_ref(f, decoded_frame);
1243 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1248 av_frame_unref(ist->filter_frame);
1249 av_frame_unref(decoded_frame);
1250 av_free(buffer_to_free);
1251 return err < 0 ? err : ret;
1254 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1256 AVSubtitle subtitle;
1257 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1258 &subtitle, got_output, pkt);
1264 rate_emu_sleep(ist);
1266 for (i = 0; i < nb_output_streams; i++) {
1267 OutputStream *ost = output_streams[i];
1269 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1272 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1275 avsubtitle_free(&subtitle);
1279 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1280 static int output_packet(InputStream *ist, const AVPacket *pkt)
1286 if (ist->next_dts == AV_NOPTS_VALUE)
1287 ist->next_dts = ist->last_dts;
1291 av_init_packet(&avpkt);
1299 if (pkt->dts != AV_NOPTS_VALUE)
1300 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1302 // while we have more to decode or while the decoder did output something on EOF
1303 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1307 ist->last_dts = ist->next_dts;
1309 if (avpkt.size && avpkt.size != pkt->size) {
1310 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1311 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1312 ist->showed_multi_packet_warning = 1;
1315 switch (ist->st->codec->codec_type) {
1316 case AVMEDIA_TYPE_AUDIO:
1317 ret = decode_audio (ist, &avpkt, &got_output);
1319 case AVMEDIA_TYPE_VIDEO:
1320 ret = decode_video (ist, &avpkt, &got_output);
1322 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1323 else if (ist->st->avg_frame_rate.num)
1324 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1326 else if (ist->st->codec->time_base.num != 0) {
1327 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1328 ist->st->codec->ticks_per_frame;
1329 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
1332 case AVMEDIA_TYPE_SUBTITLE:
1333 ret = transcode_subtitles(ist, &avpkt, &got_output);
1341 // touch data and size only if not EOF
1351 /* handle stream copy */
1352 if (!ist->decoding_needed) {
1353 rate_emu_sleep(ist);
1354 ist->last_dts = ist->next_dts;
1355 switch (ist->st->codec->codec_type) {
1356 case AVMEDIA_TYPE_AUDIO:
1357 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1358 ist->st->codec->sample_rate;
1360 case AVMEDIA_TYPE_VIDEO:
1361 if (ist->st->codec->time_base.num != 0) {
1362 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1363 ist->next_dts += ((int64_t)AV_TIME_BASE *
1364 ist->st->codec->time_base.num * ticks) /
1365 ist->st->codec->time_base.den;
1370 for (i = 0; pkt && i < nb_output_streams; i++) {
1371 OutputStream *ost = output_streams[i];
1373 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1376 do_streamcopy(ist, ost, pkt);
1382 static void print_sdp(void)
1386 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1390 for (i = 0; i < nb_output_files; i++)
1391 avc[i] = output_files[i]->ctx;
1393 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1394 printf("SDP:\n%s\n", sdp);
1399 static int init_input_stream(int ist_index, char *error, int error_len)
1402 InputStream *ist = input_streams[ist_index];
1403 if (ist->decoding_needed) {
1404 AVCodec *codec = ist->dec;
1406 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1407 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1408 return AVERROR(EINVAL);
1411 /* update requested sample format for the decoder based on the
1412 corresponding encoder sample format */
1413 for (i = 0; i < nb_output_streams; i++) {
1414 OutputStream *ost = output_streams[i];
1415 if (ost->source_index == ist_index) {
1416 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1421 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1423 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1424 av_dict_set(&ist->opts, "threads", "auto", 0);
1425 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1426 if (ret == AVERROR_EXPERIMENTAL)
1427 abort_codec_experimental(codec, 0);
1428 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1429 ist->file_index, ist->st->index);
1432 assert_avoptions(ist->opts);
1435 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;
1436 ist->next_dts = AV_NOPTS_VALUE;
1437 init_pts_correction(&ist->pts_ctx);
1443 static InputStream *get_input_stream(OutputStream *ost)
1445 if (ost->source_index >= 0)
1446 return input_streams[ost->source_index];
1449 FilterGraph *fg = ost->filter->graph;
1452 for (i = 0; i < fg->nb_inputs; i++)
1453 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
1454 return fg->inputs[i]->ist;
1460 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1461 AVCodecContext *avctx)
1467 for (p = kf; *p; p++)
1470 ost->forced_kf_count = n;
1471 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1472 if (!ost->forced_kf_pts) {
1473 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1478 for (i = 0; i < n; i++) {
1479 char *next = strchr(p, ',');
1484 t = parse_time_or_die("force_key_frames", p, 1);
1485 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1491 static int transcode_init(void)
1493 int ret = 0, i, j, k;
1494 AVFormatContext *oc;
1495 AVCodecContext *codec;
1501 /* init framerate emulation */
1502 for (i = 0; i < nb_input_files; i++) {
1503 InputFile *ifile = input_files[i];
1504 if (ifile->rate_emu)
1505 for (j = 0; j < ifile->nb_streams; j++)
1506 input_streams[j + ifile->ist_index]->start = av_gettime();
1509 /* output stream init */
1510 for (i = 0; i < nb_output_files; i++) {
1511 oc = output_files[i]->ctx;
1512 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1513 av_dump_format(oc, i, oc->filename, 1);
1514 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1515 return AVERROR(EINVAL);
1519 /* init complex filtergraphs */
1520 for (i = 0; i < nb_filtergraphs; i++)
1521 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1524 /* for each output stream, we compute the right encoding parameters */
1525 for (i = 0; i < nb_output_streams; i++) {
1526 AVCodecContext *icodec = NULL;
1527 ost = output_streams[i];
1528 oc = output_files[ost->file_index]->ctx;
1529 ist = get_input_stream(ost);
1531 if (ost->attachment_filename)
1534 codec = ost->st->codec;
1537 icodec = ist->st->codec;
1539 ost->st->disposition = ist->st->disposition;
1540 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1541 codec->chroma_sample_location = icodec->chroma_sample_location;
1544 if (ost->stream_copy) {
1545 uint64_t extra_size;
1547 av_assert0(ist && !ost->filter);
1549 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1551 if (extra_size > INT_MAX) {
1552 return AVERROR(EINVAL);
1555 /* if stream_copy is selected, no need to decode or encode */
1556 codec->codec_id = icodec->codec_id;
1557 codec->codec_type = icodec->codec_type;
1559 if (!codec->codec_tag) {
1560 if (!oc->oformat->codec_tag ||
1561 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
1562 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
1563 codec->codec_tag = icodec->codec_tag;
1566 codec->bit_rate = icodec->bit_rate;
1567 codec->rc_max_rate = icodec->rc_max_rate;
1568 codec->rc_buffer_size = icodec->rc_buffer_size;
1569 codec->field_order = icodec->field_order;
1570 codec->extradata = av_mallocz(extra_size);
1571 if (!codec->extradata) {
1572 return AVERROR(ENOMEM);
1574 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1575 codec->extradata_size = icodec->extradata_size;
1577 codec->time_base = icodec->time_base;
1578 codec->time_base.num *= icodec->ticks_per_frame;
1579 av_reduce(&codec->time_base.num, &codec->time_base.den,
1580 codec->time_base.num, codec->time_base.den, INT_MAX);
1582 codec->time_base = ist->st->time_base;
1584 switch (codec->codec_type) {
1585 case AVMEDIA_TYPE_AUDIO:
1586 if (audio_volume != 256) {
1587 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1590 codec->channel_layout = icodec->channel_layout;
1591 codec->sample_rate = icodec->sample_rate;
1592 codec->channels = icodec->channels;
1593 codec->frame_size = icodec->frame_size;
1594 codec->audio_service_type = icodec->audio_service_type;
1595 codec->block_align = icodec->block_align;
1597 case AVMEDIA_TYPE_VIDEO:
1598 codec->pix_fmt = icodec->pix_fmt;
1599 codec->width = icodec->width;
1600 codec->height = icodec->height;
1601 codec->has_b_frames = icodec->has_b_frames;
1602 if (!codec->sample_aspect_ratio.num) {
1603 codec->sample_aspect_ratio =
1604 ost->st->sample_aspect_ratio =
1605 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1606 ist->st->codec->sample_aspect_ratio.num ?
1607 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1610 case AVMEDIA_TYPE_SUBTITLE:
1611 codec->width = icodec->width;
1612 codec->height = icodec->height;
1614 case AVMEDIA_TYPE_DATA:
1615 case AVMEDIA_TYPE_ATTACHMENT:
1622 /* should only happen when a default codec is not present. */
1623 snprintf(error, sizeof(error), "Automatic encoder selection "
1624 "failed for output stream #%d:%d. Default encoder for "
1625 "format %s is probably disabled. Please choose an "
1626 "encoder manually.\n", ost->file_index, ost->index,
1628 ret = AVERROR(EINVAL);
1633 ist->decoding_needed = 1;
1634 ost->encoding_needed = 1;
1637 * We want CFR output if and only if one of those is true:
1638 * 1) user specified output framerate with -r
1639 * 2) user specified -vsync cfr
1640 * 3) output format is CFR and the user didn't force vsync to
1641 * something else than CFR
1643 * in such a case, set ost->frame_rate
1645 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1646 !ost->frame_rate.num && ist &&
1647 (video_sync_method == VSYNC_CFR ||
1648 (video_sync_method == VSYNC_AUTO &&
1649 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1650 ost->frame_rate = ist->framerate.num ? ist->framerate :
1651 ist->st->avg_frame_rate.num ?
1652 ist->st->avg_frame_rate :
1653 (AVRational){25, 1};
1655 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1656 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1657 ost->frame_rate = ost->enc->supported_framerates[idx];
1662 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
1663 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
1665 fg = init_simple_filtergraph(ist, ost);
1666 if (configure_filtergraph(fg)) {
1667 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1672 switch (codec->codec_type) {
1673 case AVMEDIA_TYPE_AUDIO:
1674 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
1675 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1676 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1677 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
1678 codec->time_base = (AVRational){ 1, codec->sample_rate };
1680 case AVMEDIA_TYPE_VIDEO:
1681 codec->time_base = ost->filter->filter->inputs[0]->time_base;
1683 codec->width = ost->filter->filter->inputs[0]->w;
1684 codec->height = ost->filter->filter->inputs[0]->h;
1685 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1686 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1687 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
1688 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1689 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
1692 (codec->width != icodec->width ||
1693 codec->height != icodec->height ||
1694 codec->pix_fmt != icodec->pix_fmt)) {
1695 codec->bits_per_raw_sample = 0;
1698 if (ost->forced_keyframes)
1699 parse_forced_key_frames(ost->forced_keyframes, ost,
1702 case AVMEDIA_TYPE_SUBTITLE:
1703 codec->time_base = (AVRational){1, 1000};
1710 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1711 char logfilename[1024];
1714 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1715 ost->logfile_prefix ? ost->logfile_prefix :
1716 DEFAULT_PASS_LOGFILENAME_PREFIX,
1718 if (!strcmp(ost->enc->name, "libx264")) {
1719 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1721 if (codec->flags & CODEC_FLAG_PASS1) {
1722 f = fopen(logfilename, "wb");
1724 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1725 logfilename, strerror(errno));
1731 size_t logbuffer_size;
1732 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1733 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1737 codec->stats_in = logbuffer;
1744 /* open each encoder */
1745 for (i = 0; i < nb_output_streams; i++) {
1746 ost = output_streams[i];
1747 if (ost->encoding_needed) {
1748 AVCodec *codec = ost->enc;
1749 AVCodecContext *dec = NULL;
1751 if ((ist = get_input_stream(ost)))
1752 dec = ist->st->codec;
1753 if (dec && dec->subtitle_header) {
1754 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1755 if (!ost->st->codec->subtitle_header) {
1756 ret = AVERROR(ENOMEM);
1759 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1760 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1762 if (!av_dict_get(ost->opts, "threads", NULL, 0))
1763 av_dict_set(&ost->opts, "threads", "auto", 0);
1764 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
1765 if (ret == AVERROR_EXPERIMENTAL)
1766 abort_codec_experimental(codec, 1);
1767 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1768 ost->file_index, ost->index);
1771 assert_avoptions(ost->opts);
1772 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1773 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1774 "It takes bits/s as argument, not kbits/s\n");
1775 extra_size += ost->st->codec->extradata_size;
1777 if (ost->st->codec->me_threshold)
1778 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
1780 av_opt_set_dict(ost->st->codec, &ost->opts);
1784 /* init input streams */
1785 for (i = 0; i < nb_input_streams; i++)
1786 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1789 /* discard unused programs */
1790 for (i = 0; i < nb_input_files; i++) {
1791 InputFile *ifile = input_files[i];
1792 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1793 AVProgram *p = ifile->ctx->programs[j];
1794 int discard = AVDISCARD_ALL;
1796 for (k = 0; k < p->nb_stream_indexes; k++)
1797 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1798 discard = AVDISCARD_DEFAULT;
1801 p->discard = discard;
1805 /* open files and write file headers */
1806 for (i = 0; i < nb_output_files; i++) {
1807 oc = output_files[i]->ctx;
1808 oc->interrupt_callback = int_cb;
1809 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1811 const char *errbuf_ptr = errbuf;
1812 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
1813 errbuf_ptr = strerror(AVUNERROR(ret));
1814 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
1815 ret = AVERROR(EINVAL);
1818 assert_avoptions(output_files[i]->opts);
1819 if (strcmp(oc->oformat->name, "rtp")) {
1825 /* dump the file output parameters - cannot be done before in case
1827 for (i = 0; i < nb_output_files; i++) {
1828 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
1831 /* dump the stream mapping */
1832 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
1833 for (i = 0; i < nb_input_streams; i++) {
1834 ist = input_streams[i];
1836 for (j = 0; j < ist->nb_filters; j++) {
1837 if (ist->filters[j]->graph->graph_desc) {
1838 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1839 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
1840 ist->filters[j]->name);
1841 if (nb_filtergraphs > 1)
1842 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1843 av_log(NULL, AV_LOG_INFO, "\n");
1848 for (i = 0; i < nb_output_streams; i++) {
1849 ost = output_streams[i];
1851 if (ost->attachment_filename) {
1852 /* an attached file */
1853 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
1854 ost->attachment_filename, ost->file_index, ost->index);
1858 if (ost->filter && ost->filter->graph->graph_desc) {
1859 /* output from a complex graph */
1860 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
1861 if (nb_filtergraphs > 1)
1862 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
1864 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
1865 ost->index, ost->enc ? ost->enc->name : "?");
1869 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
1870 input_streams[ost->source_index]->file_index,
1871 input_streams[ost->source_index]->st->index,
1874 if (ost->sync_ist != input_streams[ost->source_index])
1875 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
1876 ost->sync_ist->file_index,
1877 ost->sync_ist->st->index);
1878 if (ost->stream_copy)
1879 av_log(NULL, AV_LOG_INFO, " (copy)");
1881 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
1882 input_streams[ost->source_index]->dec->name : "?",
1883 ost->enc ? ost->enc->name : "?");
1884 av_log(NULL, AV_LOG_INFO, "\n");
1888 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
1899 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
1900 static int need_output(void)
1904 for (i = 0; i < nb_output_streams; i++) {
1905 OutputStream *ost = output_streams[i];
1906 OutputFile *of = output_files[ost->file_index];
1907 AVFormatContext *os = output_files[ost->file_index]->ctx;
1909 if (ost->finished ||
1910 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
1912 if (ost->frame_number >= ost->max_frames) {
1914 for (j = 0; j < of->ctx->nb_streams; j++)
1915 output_streams[of->ost_index + j]->finished = 1;
1925 static InputFile *select_input_file(void)
1927 InputFile *ifile = NULL;
1928 int64_t ipts_min = INT64_MAX;
1931 for (i = 0; i < nb_input_streams; i++) {
1932 InputStream *ist = input_streams[i];
1933 int64_t ipts = ist->last_dts;
1935 if (ist->discard || input_files[ist->file_index]->eagain)
1937 if (!input_files[ist->file_index]->eof_reached) {
1938 if (ipts < ipts_min) {
1940 ifile = input_files[ist->file_index];
1949 static void *input_thread(void *arg)
1954 while (!transcoding_finished && ret >= 0) {
1956 ret = av_read_frame(f->ctx, &pkt);
1958 if (ret == AVERROR(EAGAIN)) {
1965 pthread_mutex_lock(&f->fifo_lock);
1966 while (!av_fifo_space(f->fifo))
1967 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
1969 av_dup_packet(&pkt);
1970 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
1972 pthread_mutex_unlock(&f->fifo_lock);
1979 static void free_input_threads(void)
1983 if (nb_input_files == 1)
1986 transcoding_finished = 1;
1988 for (i = 0; i < nb_input_files; i++) {
1989 InputFile *f = input_files[i];
1992 if (!f->fifo || f->joined)
1995 pthread_mutex_lock(&f->fifo_lock);
1996 while (av_fifo_size(f->fifo)) {
1997 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
1998 av_free_packet(&pkt);
2000 pthread_cond_signal(&f->fifo_cond);
2001 pthread_mutex_unlock(&f->fifo_lock);
2003 pthread_join(f->thread, NULL);
2006 while (av_fifo_size(f->fifo)) {
2007 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2008 av_free_packet(&pkt);
2010 av_fifo_free(f->fifo);
2014 static int init_input_threads(void)
2018 if (nb_input_files == 1)
2021 for (i = 0; i < nb_input_files; i++) {
2022 InputFile *f = input_files[i];
2024 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2025 return AVERROR(ENOMEM);
2027 pthread_mutex_init(&f->fifo_lock, NULL);
2028 pthread_cond_init (&f->fifo_cond, NULL);
2030 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2031 return AVERROR(ret);
2036 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2040 pthread_mutex_lock(&f->fifo_lock);
2042 if (av_fifo_size(f->fifo)) {
2043 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2044 pthread_cond_signal(&f->fifo_cond);
2049 ret = AVERROR(EAGAIN);
2052 pthread_mutex_unlock(&f->fifo_lock);
2058 static int get_input_packet(InputFile *f, AVPacket *pkt)
2061 if (nb_input_files > 1)
2062 return get_input_packet_mt(f, pkt);
2064 return av_read_frame(f->ctx, pkt);
2067 static int got_eagain(void)
2070 for (i = 0; i < nb_input_files; i++)
2071 if (input_files[i]->eagain)
2076 static void reset_eagain(void)
2079 for (i = 0; i < nb_input_files; i++)
2080 input_files[i]->eagain = 0;
2084 * Read one packet from an input file and send it for
2085 * - decoding -> lavfi (audio/video)
2086 * - decoding -> encoding -> muxing (subtitles)
2087 * - muxing (streamcopy)
2090 * - 0 -- one packet was read and processed
2091 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2092 * this function should be called again
2093 * - AVERROR_EOF -- this function should not be called again
2095 static int process_input(void)
2098 AVFormatContext *is;
2103 /* select the stream that we must read now */
2104 ifile = select_input_file();
2105 /* if none, if is finished */
2110 return AVERROR(EAGAIN);
2112 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2117 ret = get_input_packet(ifile, &pkt);
2119 if (ret == AVERROR(EAGAIN)) {
2124 if (ret != AVERROR_EOF) {
2125 print_error(is->filename, ret);
2129 ifile->eof_reached = 1;
2131 for (i = 0; i < ifile->nb_streams; i++) {
2132 ist = input_streams[ifile->ist_index + i];
2133 if (ist->decoding_needed)
2134 output_packet(ist, NULL);
2136 /* mark all outputs that don't go through lavfi as finished */
2137 for (j = 0; j < nb_output_streams; j++) {
2138 OutputStream *ost = output_streams[j];
2140 if (ost->source_index == ifile->ist_index + i &&
2141 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2146 return AVERROR(EAGAIN);
2152 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2153 is->streams[pkt.stream_index]);
2155 /* the following test is needed in case new streams appear
2156 dynamically in stream : we ignore them */
2157 if (pkt.stream_index >= ifile->nb_streams)
2158 goto discard_packet;
2160 ist = input_streams[ifile->ist_index + pkt.stream_index];
2162 goto discard_packet;
2164 if (pkt.dts != AV_NOPTS_VALUE)
2165 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2166 if (pkt.pts != AV_NOPTS_VALUE)
2167 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2169 if (pkt.pts != AV_NOPTS_VALUE)
2170 pkt.pts *= ist->ts_scale;
2171 if (pkt.dts != AV_NOPTS_VALUE)
2172 pkt.dts *= ist->ts_scale;
2174 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2175 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2176 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2177 int64_t delta = pkt_dts - ist->next_dts;
2179 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2180 ifile->ts_offset -= delta;
2181 av_log(NULL, AV_LOG_DEBUG,
2182 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2183 delta, ifile->ts_offset);
2184 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2185 if (pkt.pts != AV_NOPTS_VALUE)
2186 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2190 ret = output_packet(ist, &pkt);
2192 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2193 ist->file_index, ist->st->index);
2199 av_free_packet(&pkt);
2205 * The following code is the main loop of the file converter
2207 static int transcode(void)
2209 int ret, i, need_input = 1;
2210 AVFormatContext *os;
2213 int64_t timer_start;
2215 ret = transcode_init();
2219 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2222 timer_start = av_gettime();
2225 if ((ret = init_input_threads()) < 0)
2229 while (!received_sigterm) {
2230 /* check if there's any stream where output is still needed */
2231 if (!need_output()) {
2232 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2236 /* read and process one input packet if needed */
2238 ret = process_input();
2239 if (ret == AVERROR_EOF)
2243 ret = poll_filters();
2245 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
2248 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2252 /* dump report by using the output first video and audio streams */
2253 print_report(0, timer_start);
2256 free_input_threads();
2259 /* at the end of stream, we must flush the decoder buffers */
2260 for (i = 0; i < nb_input_streams; i++) {
2261 ist = input_streams[i];
2262 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2263 output_packet(ist, NULL);
2271 /* write the trailer if needed and close file */
2272 for (i = 0; i < nb_output_files; i++) {
2273 os = output_files[i]->ctx;
2274 av_write_trailer(os);
2277 /* dump report by using the first video and audio streams */
2278 print_report(1, timer_start);
2280 /* close each encoder */
2281 for (i = 0; i < nb_output_streams; i++) {
2282 ost = output_streams[i];
2283 if (ost->encoding_needed) {
2284 av_freep(&ost->st->codec->stats_in);
2285 avcodec_close(ost->st->codec);
2289 /* close each decoder */
2290 for (i = 0; i < nb_input_streams; i++) {
2291 ist = input_streams[i];
2292 if (ist->decoding_needed) {
2293 avcodec_close(ist->st->codec);
2302 free_input_threads();
2305 if (output_streams) {
2306 for (i = 0; i < nb_output_streams; i++) {
2307 ost = output_streams[i];
2309 if (ost->stream_copy)
2310 av_freep(&ost->st->codec->extradata);
2312 fclose(ost->logfile);
2313 ost->logfile = NULL;
2315 av_freep(&ost->st->codec->subtitle_header);
2316 av_free(ost->forced_kf_pts);
2317 av_dict_free(&ost->opts);
2318 av_dict_free(&ost->resample_opts);
2325 static int64_t getutime(void)
2328 struct rusage rusage;
2330 getrusage(RUSAGE_SELF, &rusage);
2331 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2332 #elif HAVE_GETPROCESSTIMES
2334 FILETIME c, e, k, u;
2335 proc = GetCurrentProcess();
2336 GetProcessTimes(proc, &c, &e, &k, &u);
2337 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2339 return av_gettime();
2343 static int64_t getmaxrss(void)
2345 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2346 struct rusage rusage;
2347 getrusage(RUSAGE_SELF, &rusage);
2348 return (int64_t)rusage.ru_maxrss * 1024;
2349 #elif HAVE_GETPROCESSMEMORYINFO
2351 PROCESS_MEMORY_COUNTERS memcounters;
2352 proc = GetCurrentProcess();
2353 memcounters.cb = sizeof(memcounters);
2354 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2355 return memcounters.PeakPagefileUsage;
2361 int main(int argc, char **argv)
2366 atexit(exit_program);
2368 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2369 parse_loglevel(argc, argv, options);
2371 avcodec_register_all();
2373 avdevice_register_all();
2375 avfilter_register_all();
2377 avformat_network_init();
2381 /* parse options and open all input/output files */
2382 ret = avconv_parse_options(argc, argv);
2386 if (nb_output_files <= 0 && nb_input_files == 0) {
2388 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2392 /* file converter / grab */
2393 if (nb_output_files <= 0) {
2394 fprintf(stderr, "At least one output file must be specified\n");
2399 if (transcode() < 0)
2401 ti = getutime() - ti;
2403 int maxrss = getmaxrss() / 1024;
2404 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);