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/fifo.h"
39 #include "libavutil/intreadwrite.h"
40 #include "libavutil/dict.h"
41 #include "libavutil/mathematics.h"
42 #include "libavutil/pixdesc.h"
43 #include "libavutil/avstring.h"
44 #include "libavutil/libm.h"
45 #include "libavutil/imgutils.h"
46 #include "libavutil/time.h"
47 #include "libavformat/os_support.h"
49 # include "libavfilter/avfilter.h"
50 # include "libavfilter/buffersrc.h"
51 # include "libavfilter/buffersink.h"
53 #if HAVE_SYS_RESOURCE_H
55 #include <sys/types.h>
56 #include <sys/resource.h>
57 #elif HAVE_GETPROCESSTIMES
60 #if HAVE_GETPROCESSMEMORYINFO
66 #include <sys/select.h>
78 #include "libavutil/avassert.h"
80 const char program_name[] = "avconv";
81 const int program_birth_year = 2000;
83 static FILE *vstats_file;
85 static int64_t video_size = 0;
86 static int64_t audio_size = 0;
87 static int64_t extra_size = 0;
88 static int nb_frames_dup = 0;
89 static int nb_frames_drop = 0;
94 /* signal to input threads that they should exit; set by the main thread */
95 static int transcoding_finished;
98 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
100 InputStream **input_streams = NULL;
101 int nb_input_streams = 0;
102 InputFile **input_files = NULL;
103 int nb_input_files = 0;
105 OutputStream **output_streams = NULL;
106 int nb_output_streams = 0;
107 OutputFile **output_files = NULL;
108 int nb_output_files = 0;
110 FilterGraph **filtergraphs;
113 static void term_exit(void)
115 av_log(NULL, AV_LOG_QUIET, "");
118 static volatile int received_sigterm = 0;
119 static volatile int received_nb_signals = 0;
122 sigterm_handler(int sig)
124 received_sigterm = sig;
125 received_nb_signals++;
129 static void term_init(void)
131 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
132 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
134 signal(SIGXCPU, sigterm_handler);
138 static int decode_interrupt_cb(void *ctx)
140 return received_nb_signals > 1;
143 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
145 static void avconv_cleanup(int ret)
149 for (i = 0; i < nb_filtergraphs; i++) {
150 avfilter_graph_free(&filtergraphs[i]->graph);
151 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
152 av_freep(&filtergraphs[i]->inputs[j]->name);
153 av_freep(&filtergraphs[i]->inputs[j]);
155 av_freep(&filtergraphs[i]->inputs);
156 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
157 av_freep(&filtergraphs[i]->outputs[j]->name);
158 av_freep(&filtergraphs[i]->outputs[j]);
160 av_freep(&filtergraphs[i]->outputs);
161 av_freep(&filtergraphs[i]->graph_desc);
162 av_freep(&filtergraphs[i]);
164 av_freep(&filtergraphs);
167 for (i = 0; i < nb_output_files; i++) {
168 AVFormatContext *s = output_files[i]->ctx;
169 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
171 avformat_free_context(s);
172 av_dict_free(&output_files[i]->opts);
173 av_freep(&output_files[i]);
175 for (i = 0; i < nb_output_streams; i++) {
176 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
178 AVBitStreamFilterContext *next = bsfc->next;
179 av_bitstream_filter_close(bsfc);
182 output_streams[i]->bitstream_filters = NULL;
183 avcodec_free_frame(&output_streams[i]->filtered_frame);
185 av_parser_close(output_streams[i]->parser);
187 av_freep(&output_streams[i]->forced_keyframes);
188 av_freep(&output_streams[i]->avfilter);
189 av_freep(&output_streams[i]->logfile_prefix);
190 av_freep(&output_streams[i]);
192 for (i = 0; i < nb_input_files; i++) {
193 avformat_close_input(&input_files[i]->ctx);
194 av_freep(&input_files[i]);
196 for (i = 0; i < nb_input_streams; i++) {
197 av_frame_free(&input_streams[i]->decoded_frame);
198 av_frame_free(&input_streams[i]->filter_frame);
199 av_dict_free(&input_streams[i]->opts);
200 av_freep(&input_streams[i]->filters);
201 av_freep(&input_streams[i]);
206 av_free(vstats_filename);
208 av_freep(&input_streams);
209 av_freep(&input_files);
210 av_freep(&output_streams);
211 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 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
353 ost->last_mux_dts != AV_NOPTS_VALUE &&
354 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
355 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
356 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
357 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
359 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
362 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
363 "in incorrect timestamps in the output file.\n",
364 ost->last_mux_dts + 1);
365 pkt->dts = ost->last_mux_dts + 1;
366 if (pkt->pts != AV_NOPTS_VALUE)
367 pkt->pts = FFMAX(pkt->pts, pkt->dts);
369 ost->last_mux_dts = pkt->dts;
371 pkt->stream_index = ost->index;
372 ret = av_interleaved_write_frame(s, pkt);
374 print_error("av_interleaved_write_frame()", ret);
379 static int check_recording_time(OutputStream *ost)
381 OutputFile *of = output_files[ost->file_index];
383 if (of->recording_time != INT64_MAX &&
384 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
385 AV_TIME_BASE_Q) >= 0) {
392 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
395 AVCodecContext *enc = ost->st->codec;
399 av_init_packet(&pkt);
403 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
404 frame->pts = ost->sync_opts;
405 ost->sync_opts = frame->pts + frame->nb_samples;
407 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
408 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
413 if (pkt.pts != AV_NOPTS_VALUE)
414 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
415 if (pkt.dts != AV_NOPTS_VALUE)
416 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
417 if (pkt.duration > 0)
418 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
420 write_frame(s, &pkt, ost);
422 audio_size += pkt.size;
426 static void do_subtitle_out(AVFormatContext *s,
432 static uint8_t *subtitle_out = NULL;
433 int subtitle_out_max_size = 1024 * 1024;
434 int subtitle_out_size, nb, i;
438 if (pts == AV_NOPTS_VALUE) {
439 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
445 enc = ost->st->codec;
448 subtitle_out = av_malloc(subtitle_out_max_size);
451 /* Note: DVB subtitle need one packet to draw them and one other
452 packet to clear them */
453 /* XXX: signal it in the codec context ? */
454 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
459 for (i = 0; i < nb; i++) {
460 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
461 if (!check_recording_time(ost))
464 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
465 // start_display_time is required to be 0
466 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
467 sub->end_display_time -= sub->start_display_time;
468 sub->start_display_time = 0;
469 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
470 subtitle_out_max_size, sub);
471 if (subtitle_out_size < 0) {
472 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
476 av_init_packet(&pkt);
477 pkt.data = subtitle_out;
478 pkt.size = subtitle_out_size;
479 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
480 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
481 /* XXX: the pts correction is handled here. Maybe handling
482 it in the codec would be better */
484 pkt.pts += 90 * sub->start_display_time;
486 pkt.pts += 90 * sub->end_display_time;
488 write_frame(s, &pkt, ost);
492 static void do_video_out(AVFormatContext *s,
497 int ret, format_video_sync;
499 AVCodecContext *enc = ost->st->codec;
503 format_video_sync = video_sync_method;
504 if (format_video_sync == VSYNC_AUTO)
505 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
506 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
507 if (format_video_sync != VSYNC_PASSTHROUGH &&
509 in_picture->pts != AV_NOPTS_VALUE &&
510 in_picture->pts < ost->sync_opts) {
512 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
516 if (in_picture->pts == AV_NOPTS_VALUE)
517 in_picture->pts = ost->sync_opts;
518 ost->sync_opts = in_picture->pts;
521 if (!ost->frame_number)
522 ost->first_pts = in_picture->pts;
524 av_init_packet(&pkt);
528 if (ost->frame_number >= ost->max_frames)
531 if (s->oformat->flags & AVFMT_RAWPICTURE &&
532 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
533 /* raw pictures are written as AVPicture structure to
534 avoid any copies. We support temporarily the older
536 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
537 enc->coded_frame->top_field_first = in_picture->top_field_first;
538 pkt.data = (uint8_t *)in_picture;
539 pkt.size = sizeof(AVPicture);
540 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
541 pkt.flags |= AV_PKT_FLAG_KEY;
543 write_frame(s, &pkt, ost);
547 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
548 ost->top_field_first >= 0)
549 in_picture->top_field_first = !!ost->top_field_first;
551 in_picture->quality = ost->st->codec->global_quality;
552 if (!enc->me_threshold)
553 in_picture->pict_type = 0;
554 if (ost->forced_kf_index < ost->forced_kf_count &&
555 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
556 in_picture->pict_type = AV_PICTURE_TYPE_I;
557 ost->forced_kf_index++;
559 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
561 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
566 if (pkt.pts != AV_NOPTS_VALUE)
567 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
568 if (pkt.dts != AV_NOPTS_VALUE)
569 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
571 write_frame(s, &pkt, ost);
572 *frame_size = pkt.size;
573 video_size += pkt.size;
575 /* if two pass, output log */
576 if (ost->logfile && enc->stats_out) {
577 fprintf(ost->logfile, "%s", enc->stats_out);
583 * For video, number of frames in == number of packets out.
584 * But there may be reordering, so we can't throw away frames on encoder
585 * flush, we need to limit them here, before they go into encoder.
590 static double psnr(double d)
592 return -10.0 * log(d) / log(10.0);
595 static void do_video_stats(OutputStream *ost, int frame_size)
599 double ti1, bitrate, avg_bitrate;
601 /* this is executed just the first time do_video_stats is called */
603 vstats_file = fopen(vstats_filename, "w");
610 enc = ost->st->codec;
611 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
612 frame_number = ost->frame_number;
613 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
614 if (enc->flags&CODEC_FLAG_PSNR)
615 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
617 fprintf(vstats_file,"f_size= %6d ", frame_size);
618 /* compute pts value */
619 ti1 = ost->sync_opts * av_q2d(enc->time_base);
623 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
624 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
625 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
626 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
627 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
632 * Read one frame for lavfi output for ost and encode it.
634 static int poll_filter(OutputStream *ost)
636 OutputFile *of = output_files[ost->file_index];
637 AVFrame *filtered_frame = NULL;
640 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
641 return AVERROR(ENOMEM);
643 avcodec_get_frame_defaults(ost->filtered_frame);
644 filtered_frame = ost->filtered_frame;
646 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
647 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
648 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
649 ost->st->codec->frame_size);
651 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
656 if (filtered_frame->pts != AV_NOPTS_VALUE) {
657 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
658 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
659 ost->filter->filter->inputs[0]->time_base,
660 ost->st->codec->time_base) -
661 av_rescale_q(start_time,
663 ost->st->codec->time_base);
666 switch (ost->filter->filter->inputs[0]->type) {
667 case AVMEDIA_TYPE_VIDEO:
668 if (!ost->frame_aspect_ratio)
669 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
671 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
672 if (vstats_filename && frame_size)
673 do_video_stats(ost, frame_size);
675 case AVMEDIA_TYPE_AUDIO:
676 do_audio_out(of->ctx, ost, filtered_frame);
679 // TODO support subtitle filters
683 av_frame_unref(filtered_frame);
689 * Read as many frames from possible from lavfi and encode them.
691 * Always read from the active stream with the lowest timestamp. If no frames
692 * are available for it then return EAGAIN and wait for more input. This way we
693 * can use lavfi sources that generate unlimited amount of frames without memory
696 static int poll_filters(void)
700 while (ret >= 0 && !received_sigterm) {
701 OutputStream *ost = NULL;
702 int64_t min_pts = INT64_MAX;
704 /* choose output stream with the lowest timestamp */
705 for (i = 0; i < nb_output_streams; i++) {
706 int64_t pts = output_streams[i]->sync_opts;
708 if (!output_streams[i]->filter || output_streams[i]->finished)
711 pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
715 ost = output_streams[i];
722 ret = poll_filter(ost);
724 if (ret == AVERROR_EOF) {
725 OutputFile *of = output_files[ost->file_index];
730 for (j = 0; j < of->ctx->nb_streams; j++)
731 output_streams[of->ost_index + j]->finished = 1;
735 } else if (ret == AVERROR(EAGAIN))
742 static void print_report(int is_last_report, int64_t timer_start)
749 int frame_number, vid, i;
750 double bitrate, ti1, pts;
751 static int64_t last_time = -1;
752 static int qp_histogram[52];
754 if (!print_stats && !is_last_report)
757 if (!is_last_report) {
759 /* display the report every 0.5 seconds */
760 cur_time = av_gettime();
761 if (last_time == -1) {
762 last_time = cur_time;
765 if ((cur_time - last_time) < 500000)
767 last_time = cur_time;
771 oc = output_files[0]->ctx;
773 total_size = avio_size(oc->pb);
774 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
775 total_size = avio_tell(oc->pb);
776 if (total_size < 0) {
778 av_strerror(total_size, errbuf, sizeof(errbuf));
779 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
780 "avio_tell() failed: %s\n", errbuf);
787 for (i = 0; i < nb_output_streams; i++) {
789 ost = output_streams[i];
790 enc = ost->st->codec;
791 if (!ost->stream_copy && enc->coded_frame)
792 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
793 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
794 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
796 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
797 float t = (av_gettime() - timer_start) / 1000000.0;
799 frame_number = ost->frame_number;
800 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
801 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
803 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
807 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
809 for (j = 0; j < 32; j++)
810 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
812 if (enc->flags&CODEC_FLAG_PSNR) {
814 double error, error_sum = 0;
815 double scale, scale_sum = 0;
816 char type[3] = { 'Y','U','V' };
817 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
818 for (j = 0; j < 3; j++) {
819 if (is_last_report) {
820 error = enc->error[j];
821 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
823 error = enc->coded_frame->error[j];
824 scale = enc->width * enc->height * 255.0 * 255.0;
830 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
832 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
836 /* compute min output value */
837 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
838 if ((pts < ti1) && (pts > 0))
844 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
846 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
847 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
848 (double)total_size / 1024, ti1, bitrate);
850 if (nb_frames_dup || nb_frames_drop)
851 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
852 nb_frames_dup, nb_frames_drop);
854 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
858 if (is_last_report) {
859 int64_t raw= audio_size + video_size + extra_size;
860 av_log(NULL, AV_LOG_INFO, "\n");
861 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
865 100.0 * (total_size - raw) / raw
870 static void flush_encoders(void)
874 for (i = 0; i < nb_output_streams; i++) {
875 OutputStream *ost = output_streams[i];
876 AVCodecContext *enc = ost->st->codec;
877 AVFormatContext *os = output_files[ost->file_index]->ctx;
878 int stop_encoding = 0;
880 if (!ost->encoding_needed)
883 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
885 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
889 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
893 switch (ost->st->codec->codec_type) {
894 case AVMEDIA_TYPE_AUDIO:
895 encode = avcodec_encode_audio2;
899 case AVMEDIA_TYPE_VIDEO:
900 encode = avcodec_encode_video2;
911 av_init_packet(&pkt);
915 ret = encode(enc, &pkt, NULL, &got_packet);
917 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
921 if (ost->logfile && enc->stats_out) {
922 fprintf(ost->logfile, "%s", enc->stats_out);
928 if (pkt.pts != AV_NOPTS_VALUE)
929 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
930 if (pkt.dts != AV_NOPTS_VALUE)
931 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
932 if (pkt.duration > 0)
933 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
934 write_frame(os, &pkt, ost);
944 * Check whether a packet from ist should be written into ost at this time
946 static int check_output_constraints(InputStream *ist, OutputStream *ost)
948 OutputFile *of = output_files[ost->file_index];
949 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
951 if (ost->source_index != ist_index)
954 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
960 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
962 OutputFile *of = output_files[ost->file_index];
963 InputFile *f = input_files [ist->file_index];
964 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
965 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
968 av_init_packet(&opkt);
970 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
971 !ost->copy_initial_nonkeyframes)
974 if (of->recording_time != INT64_MAX &&
975 ist->last_dts >= of->recording_time + start_time) {
980 if (f->recording_time != INT64_MAX) {
981 start_time = f->ctx->start_time;
982 if (f->start_time != AV_NOPTS_VALUE)
983 start_time += f->start_time;
984 if (ist->last_dts >= f->recording_time + start_time) {
990 /* force the input stream PTS */
991 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
992 audio_size += pkt->size;
993 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
994 video_size += pkt->size;
998 if (pkt->pts != AV_NOPTS_VALUE)
999 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1001 opkt.pts = AV_NOPTS_VALUE;
1003 if (pkt->dts == AV_NOPTS_VALUE)
1004 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1006 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1007 opkt.dts -= ost_tb_start_time;
1009 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1010 opkt.flags = pkt->flags;
1012 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1013 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1014 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1015 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1016 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1018 if (av_parser_change(ost->parser, ost->st->codec,
1019 &opkt.data, &opkt.size,
1020 pkt->data, pkt->size,
1021 pkt->flags & AV_PKT_FLAG_KEY)) {
1022 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1027 opkt.data = pkt->data;
1028 opkt.size = pkt->size;
1031 write_frame(of->ctx, &opkt, ost);
1032 ost->st->codec->frame_number++;
1035 int guess_input_channel_layout(InputStream *ist)
1037 AVCodecContext *dec = ist->st->codec;
1039 if (!dec->channel_layout) {
1040 char layout_name[256];
1042 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1043 if (!dec->channel_layout)
1045 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1046 dec->channels, dec->channel_layout);
1047 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1048 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1053 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1055 AVFrame *decoded_frame, *f;
1056 AVCodecContext *avctx = ist->st->codec;
1057 int i, ret, err = 0, resample_changed;
1059 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1060 return AVERROR(ENOMEM);
1061 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1062 return AVERROR(ENOMEM);
1063 decoded_frame = ist->decoded_frame;
1065 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1066 if (!*got_output || ret < 0) {
1068 for (i = 0; i < ist->nb_filters; i++)
1069 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1074 /* if the decoder provides a pts, use it instead of the last packet pts.
1075 the decoder could be delaying output by a packet or more. */
1076 if (decoded_frame->pts != AV_NOPTS_VALUE)
1077 ist->next_dts = decoded_frame->pts;
1078 else if (pkt->pts != AV_NOPTS_VALUE) {
1079 decoded_frame->pts = pkt->pts;
1080 pkt->pts = AV_NOPTS_VALUE;
1083 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1084 ist->resample_channels != avctx->channels ||
1085 ist->resample_channel_layout != decoded_frame->channel_layout ||
1086 ist->resample_sample_rate != decoded_frame->sample_rate;
1087 if (resample_changed) {
1088 char layout1[64], layout2[64];
1090 if (!guess_input_channel_layout(ist)) {
1091 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1092 "layout for Input Stream #%d.%d\n", ist->file_index,
1096 decoded_frame->channel_layout = avctx->channel_layout;
1098 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1099 ist->resample_channel_layout);
1100 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1101 decoded_frame->channel_layout);
1103 av_log(NULL, AV_LOG_INFO,
1104 "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",
1105 ist->file_index, ist->st->index,
1106 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1107 ist->resample_channels, layout1,
1108 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1109 avctx->channels, layout2);
1111 ist->resample_sample_fmt = decoded_frame->format;
1112 ist->resample_sample_rate = decoded_frame->sample_rate;
1113 ist->resample_channel_layout = decoded_frame->channel_layout;
1114 ist->resample_channels = avctx->channels;
1116 for (i = 0; i < nb_filtergraphs; i++)
1117 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1118 configure_filtergraph(filtergraphs[i]) < 0) {
1119 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1124 if (decoded_frame->pts != AV_NOPTS_VALUE)
1125 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1127 (AVRational){1, ist->st->codec->sample_rate});
1128 for (i = 0; i < ist->nb_filters; i++) {
1129 if (i < ist->nb_filters - 1) {
1130 f = ist->filter_frame;
1131 err = av_frame_ref(f, decoded_frame);
1137 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1142 av_frame_unref(ist->filter_frame);
1143 av_frame_unref(decoded_frame);
1144 return err < 0 ? err : ret;
1147 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1149 AVFrame *decoded_frame, *f;
1150 int i, ret = 0, err = 0, resample_changed;
1152 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1153 return AVERROR(ENOMEM);
1154 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1155 return AVERROR(ENOMEM);
1156 decoded_frame = ist->decoded_frame;
1158 ret = avcodec_decode_video2(ist->st->codec,
1159 decoded_frame, got_output, pkt);
1160 if (!*got_output || ret < 0) {
1162 for (i = 0; i < ist->nb_filters; i++)
1163 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1168 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1169 decoded_frame->pkt_dts);
1172 if (ist->st->sample_aspect_ratio.num)
1173 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1175 resample_changed = ist->resample_width != decoded_frame->width ||
1176 ist->resample_height != decoded_frame->height ||
1177 ist->resample_pix_fmt != decoded_frame->format;
1178 if (resample_changed) {
1179 av_log(NULL, AV_LOG_INFO,
1180 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1181 ist->file_index, ist->st->index,
1182 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1183 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1185 ret = poll_filters();
1186 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1187 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1189 ist->resample_width = decoded_frame->width;
1190 ist->resample_height = decoded_frame->height;
1191 ist->resample_pix_fmt = decoded_frame->format;
1193 for (i = 0; i < nb_filtergraphs; i++)
1194 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1195 configure_filtergraph(filtergraphs[i]) < 0) {
1196 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1201 for (i = 0; i < ist->nb_filters; i++) {
1202 if (i < ist->nb_filters - 1) {
1203 f = ist->filter_frame;
1204 err = av_frame_ref(f, decoded_frame);
1210 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1215 av_frame_unref(ist->filter_frame);
1216 av_frame_unref(decoded_frame);
1217 return err < 0 ? err : ret;
1220 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1222 AVSubtitle subtitle;
1223 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1224 &subtitle, got_output, pkt);
1230 for (i = 0; i < nb_output_streams; i++) {
1231 OutputStream *ost = output_streams[i];
1233 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1236 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1239 avsubtitle_free(&subtitle);
1243 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1244 static int output_packet(InputStream *ist, const AVPacket *pkt)
1250 if (ist->next_dts == AV_NOPTS_VALUE)
1251 ist->next_dts = ist->last_dts;
1255 av_init_packet(&avpkt);
1263 if (pkt->dts != AV_NOPTS_VALUE)
1264 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1266 // while we have more to decode or while the decoder did output something on EOF
1267 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1271 ist->last_dts = ist->next_dts;
1273 if (avpkt.size && avpkt.size != pkt->size) {
1274 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1275 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1276 ist->showed_multi_packet_warning = 1;
1279 switch (ist->st->codec->codec_type) {
1280 case AVMEDIA_TYPE_AUDIO:
1281 ret = decode_audio (ist, &avpkt, &got_output);
1283 case AVMEDIA_TYPE_VIDEO:
1284 ret = decode_video (ist, &avpkt, &got_output);
1286 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1287 else if (ist->st->avg_frame_rate.num)
1288 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1290 else if (ist->st->codec->time_base.num != 0) {
1291 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1292 ist->st->codec->ticks_per_frame;
1293 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
1296 case AVMEDIA_TYPE_SUBTITLE:
1297 ret = transcode_subtitles(ist, &avpkt, &got_output);
1305 // touch data and size only if not EOF
1315 /* handle stream copy */
1316 if (!ist->decoding_needed) {
1317 ist->last_dts = ist->next_dts;
1318 switch (ist->st->codec->codec_type) {
1319 case AVMEDIA_TYPE_AUDIO:
1320 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1321 ist->st->codec->sample_rate;
1323 case AVMEDIA_TYPE_VIDEO:
1324 if (ist->st->codec->time_base.num != 0) {
1325 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1326 ist->next_dts += ((int64_t)AV_TIME_BASE *
1327 ist->st->codec->time_base.num * ticks) /
1328 ist->st->codec->time_base.den;
1333 for (i = 0; pkt && i < nb_output_streams; i++) {
1334 OutputStream *ost = output_streams[i];
1336 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1339 do_streamcopy(ist, ost, pkt);
1345 static void print_sdp(void)
1349 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1353 for (i = 0; i < nb_output_files; i++)
1354 avc[i] = output_files[i]->ctx;
1356 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1357 printf("SDP:\n%s\n", sdp);
1362 static int init_input_stream(int ist_index, char *error, int error_len)
1365 InputStream *ist = input_streams[ist_index];
1366 if (ist->decoding_needed) {
1367 AVCodec *codec = ist->dec;
1369 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1370 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1371 return AVERROR(EINVAL);
1374 /* update requested sample format for the decoder based on the
1375 corresponding encoder sample format */
1376 for (i = 0; i < nb_output_streams; i++) {
1377 OutputStream *ost = output_streams[i];
1378 if (ost->source_index == ist_index) {
1379 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1384 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1386 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1387 av_dict_set(&ist->opts, "threads", "auto", 0);
1388 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1390 if (ret == AVERROR_EXPERIMENTAL)
1391 abort_codec_experimental(codec, 0);
1393 av_strerror(ret, errbuf, sizeof(errbuf));
1395 snprintf(error, error_len,
1396 "Error while opening decoder for input stream "
1398 ist->file_index, ist->st->index, errbuf);
1401 assert_avoptions(ist->opts);
1404 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;
1405 ist->next_dts = AV_NOPTS_VALUE;
1406 init_pts_correction(&ist->pts_ctx);
1412 static InputStream *get_input_stream(OutputStream *ost)
1414 if (ost->source_index >= 0)
1415 return input_streams[ost->source_index];
1418 FilterGraph *fg = ost->filter->graph;
1421 for (i = 0; i < fg->nb_inputs; i++)
1422 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
1423 return fg->inputs[i]->ist;
1429 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1430 AVCodecContext *avctx)
1436 for (p = kf; *p; p++)
1439 ost->forced_kf_count = n;
1440 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1441 if (!ost->forced_kf_pts) {
1442 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1447 for (i = 0; i < n; i++) {
1448 char *next = strchr(p, ',');
1453 t = parse_time_or_die("force_key_frames", p, 1);
1454 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1460 static int transcode_init(void)
1462 int ret = 0, i, j, k;
1463 AVFormatContext *oc;
1464 AVCodecContext *codec;
1470 /* init framerate emulation */
1471 for (i = 0; i < nb_input_files; i++) {
1472 InputFile *ifile = input_files[i];
1473 if (ifile->rate_emu)
1474 for (j = 0; j < ifile->nb_streams; j++)
1475 input_streams[j + ifile->ist_index]->start = av_gettime();
1478 /* output stream init */
1479 for (i = 0; i < nb_output_files; i++) {
1480 oc = output_files[i]->ctx;
1481 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1482 av_dump_format(oc, i, oc->filename, 1);
1483 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1484 return AVERROR(EINVAL);
1488 /* init complex filtergraphs */
1489 for (i = 0; i < nb_filtergraphs; i++)
1490 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1493 /* for each output stream, we compute the right encoding parameters */
1494 for (i = 0; i < nb_output_streams; i++) {
1495 AVCodecContext *icodec = NULL;
1496 ost = output_streams[i];
1497 oc = output_files[ost->file_index]->ctx;
1498 ist = get_input_stream(ost);
1500 if (ost->attachment_filename)
1503 codec = ost->st->codec;
1506 icodec = ist->st->codec;
1508 ost->st->disposition = ist->st->disposition;
1509 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1510 codec->chroma_sample_location = icodec->chroma_sample_location;
1513 if (ost->stream_copy) {
1515 uint64_t extra_size;
1517 av_assert0(ist && !ost->filter);
1519 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1521 if (extra_size > INT_MAX) {
1522 return AVERROR(EINVAL);
1525 /* if stream_copy is selected, no need to decode or encode */
1526 codec->codec_id = icodec->codec_id;
1527 codec->codec_type = icodec->codec_type;
1529 if (!codec->codec_tag) {
1530 if (!oc->oformat->codec_tag ||
1531 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
1532 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
1533 codec->codec_tag = icodec->codec_tag;
1536 codec->bit_rate = icodec->bit_rate;
1537 codec->rc_max_rate = icodec->rc_max_rate;
1538 codec->rc_buffer_size = icodec->rc_buffer_size;
1539 codec->field_order = icodec->field_order;
1540 codec->extradata = av_mallocz(extra_size);
1541 if (!codec->extradata) {
1542 return AVERROR(ENOMEM);
1544 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1545 codec->extradata_size = icodec->extradata_size;
1547 codec->time_base = icodec->time_base;
1548 codec->time_base.num *= icodec->ticks_per_frame;
1549 av_reduce(&codec->time_base.num, &codec->time_base.den,
1550 codec->time_base.num, codec->time_base.den, INT_MAX);
1552 codec->time_base = ist->st->time_base;
1554 ost->parser = av_parser_init(codec->codec_id);
1556 switch (codec->codec_type) {
1557 case AVMEDIA_TYPE_AUDIO:
1558 if (audio_volume != 256) {
1559 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1562 codec->channel_layout = icodec->channel_layout;
1563 codec->sample_rate = icodec->sample_rate;
1564 codec->channels = icodec->channels;
1565 codec->frame_size = icodec->frame_size;
1566 codec->audio_service_type = icodec->audio_service_type;
1567 codec->block_align = icodec->block_align;
1569 case AVMEDIA_TYPE_VIDEO:
1570 codec->pix_fmt = icodec->pix_fmt;
1571 codec->width = icodec->width;
1572 codec->height = icodec->height;
1573 codec->has_b_frames = icodec->has_b_frames;
1574 if (ost->frame_aspect_ratio)
1575 sar = av_d2q(ost->frame_aspect_ratio * codec->height / codec->width, 255);
1576 else if (ist->st->sample_aspect_ratio.num)
1577 sar = ist->st->sample_aspect_ratio;
1579 sar = icodec->sample_aspect_ratio;
1580 ost->st->sample_aspect_ratio = codec->sample_aspect_ratio = sar;
1582 case AVMEDIA_TYPE_SUBTITLE:
1583 codec->width = icodec->width;
1584 codec->height = icodec->height;
1586 case AVMEDIA_TYPE_DATA:
1587 case AVMEDIA_TYPE_ATTACHMENT:
1594 /* should only happen when a default codec is not present. */
1595 snprintf(error, sizeof(error), "Automatic encoder selection "
1596 "failed for output stream #%d:%d. Default encoder for "
1597 "format %s is probably disabled. Please choose an "
1598 "encoder manually.\n", ost->file_index, ost->index,
1600 ret = AVERROR(EINVAL);
1605 ist->decoding_needed = 1;
1606 ost->encoding_needed = 1;
1609 * We want CFR output if and only if one of those is true:
1610 * 1) user specified output framerate with -r
1611 * 2) user specified -vsync cfr
1612 * 3) output format is CFR and the user didn't force vsync to
1613 * something else than CFR
1615 * in such a case, set ost->frame_rate
1617 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1618 !ost->frame_rate.num && ist &&
1619 (video_sync_method == VSYNC_CFR ||
1620 (video_sync_method == VSYNC_AUTO &&
1621 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1622 ost->frame_rate = ist->framerate.num ? ist->framerate :
1623 ist->st->avg_frame_rate.num ?
1624 ist->st->avg_frame_rate :
1625 (AVRational){25, 1};
1627 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1628 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1629 ost->frame_rate = ost->enc->supported_framerates[idx];
1634 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
1635 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
1637 fg = init_simple_filtergraph(ist, ost);
1638 if (configure_filtergraph(fg)) {
1639 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1644 switch (codec->codec_type) {
1645 case AVMEDIA_TYPE_AUDIO:
1646 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
1647 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1648 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1649 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
1650 codec->time_base = (AVRational){ 1, codec->sample_rate };
1652 case AVMEDIA_TYPE_VIDEO:
1653 codec->time_base = ost->filter->filter->inputs[0]->time_base;
1655 codec->width = ost->filter->filter->inputs[0]->w;
1656 codec->height = ost->filter->filter->inputs[0]->h;
1657 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1658 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1659 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
1660 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1661 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
1664 (codec->width != icodec->width ||
1665 codec->height != icodec->height ||
1666 codec->pix_fmt != icodec->pix_fmt)) {
1667 codec->bits_per_raw_sample = 0;
1670 if (ost->forced_keyframes)
1671 parse_forced_key_frames(ost->forced_keyframes, ost,
1674 case AVMEDIA_TYPE_SUBTITLE:
1675 codec->time_base = (AVRational){1, 1000};
1682 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1683 char logfilename[1024];
1686 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1687 ost->logfile_prefix ? ost->logfile_prefix :
1688 DEFAULT_PASS_LOGFILENAME_PREFIX,
1690 if (!strcmp(ost->enc->name, "libx264")) {
1691 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1693 if (codec->flags & CODEC_FLAG_PASS1) {
1694 f = fopen(logfilename, "wb");
1696 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1697 logfilename, strerror(errno));
1703 size_t logbuffer_size;
1704 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1705 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1709 codec->stats_in = logbuffer;
1716 /* open each encoder */
1717 for (i = 0; i < nb_output_streams; i++) {
1718 ost = output_streams[i];
1719 if (ost->encoding_needed) {
1720 AVCodec *codec = ost->enc;
1721 AVCodecContext *dec = NULL;
1723 if ((ist = get_input_stream(ost)))
1724 dec = ist->st->codec;
1725 if (dec && dec->subtitle_header) {
1726 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1727 if (!ost->st->codec->subtitle_header) {
1728 ret = AVERROR(ENOMEM);
1731 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1732 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1734 if (!av_dict_get(ost->opts, "threads", NULL, 0))
1735 av_dict_set(&ost->opts, "threads", "auto", 0);
1736 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
1737 if (ret == AVERROR_EXPERIMENTAL)
1738 abort_codec_experimental(codec, 1);
1739 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1740 ost->file_index, ost->index);
1743 assert_avoptions(ost->opts);
1744 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1745 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1746 "It takes bits/s as argument, not kbits/s\n");
1747 extra_size += ost->st->codec->extradata_size;
1749 av_opt_set_dict(ost->st->codec, &ost->opts);
1753 /* init input streams */
1754 for (i = 0; i < nb_input_streams; i++)
1755 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1758 /* discard unused programs */
1759 for (i = 0; i < nb_input_files; i++) {
1760 InputFile *ifile = input_files[i];
1761 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1762 AVProgram *p = ifile->ctx->programs[j];
1763 int discard = AVDISCARD_ALL;
1765 for (k = 0; k < p->nb_stream_indexes; k++)
1766 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1767 discard = AVDISCARD_DEFAULT;
1770 p->discard = discard;
1774 /* open files and write file headers */
1775 for (i = 0; i < nb_output_files; i++) {
1776 oc = output_files[i]->ctx;
1777 oc->interrupt_callback = int_cb;
1778 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1780 av_strerror(ret, errbuf, sizeof(errbuf));
1781 snprintf(error, sizeof(error),
1782 "Could not write header for output file #%d "
1783 "(incorrect codec parameters ?): %s",
1785 ret = AVERROR(EINVAL);
1788 assert_avoptions(output_files[i]->opts);
1789 if (strcmp(oc->oformat->name, "rtp")) {
1795 /* dump the file output parameters - cannot be done before in case
1797 for (i = 0; i < nb_output_files; i++) {
1798 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
1801 /* dump the stream mapping */
1802 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
1803 for (i = 0; i < nb_input_streams; i++) {
1804 ist = input_streams[i];
1806 for (j = 0; j < ist->nb_filters; j++) {
1807 if (ist->filters[j]->graph->graph_desc) {
1808 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1809 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
1810 ist->filters[j]->name);
1811 if (nb_filtergraphs > 1)
1812 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1813 av_log(NULL, AV_LOG_INFO, "\n");
1818 for (i = 0; i < nb_output_streams; i++) {
1819 ost = output_streams[i];
1821 if (ost->attachment_filename) {
1822 /* an attached file */
1823 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
1824 ost->attachment_filename, ost->file_index, ost->index);
1828 if (ost->filter && ost->filter->graph->graph_desc) {
1829 /* output from a complex graph */
1830 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
1831 if (nb_filtergraphs > 1)
1832 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
1834 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
1835 ost->index, ost->enc ? ost->enc->name : "?");
1839 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
1840 input_streams[ost->source_index]->file_index,
1841 input_streams[ost->source_index]->st->index,
1844 if (ost->sync_ist != input_streams[ost->source_index])
1845 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
1846 ost->sync_ist->file_index,
1847 ost->sync_ist->st->index);
1848 if (ost->stream_copy)
1849 av_log(NULL, AV_LOG_INFO, " (copy)");
1851 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
1852 input_streams[ost->source_index]->dec->name : "?",
1853 ost->enc ? ost->enc->name : "?");
1854 av_log(NULL, AV_LOG_INFO, "\n");
1858 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
1869 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
1870 static int need_output(void)
1874 for (i = 0; i < nb_output_streams; i++) {
1875 OutputStream *ost = output_streams[i];
1876 OutputFile *of = output_files[ost->file_index];
1877 AVFormatContext *os = output_files[ost->file_index]->ctx;
1879 if (ost->finished ||
1880 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
1882 if (ost->frame_number >= ost->max_frames) {
1884 for (j = 0; j < of->ctx->nb_streams; j++)
1885 output_streams[of->ost_index + j]->finished = 1;
1895 static InputFile *select_input_file(void)
1897 InputFile *ifile = NULL;
1898 int64_t ipts_min = INT64_MAX;
1901 for (i = 0; i < nb_input_streams; i++) {
1902 InputStream *ist = input_streams[i];
1903 int64_t ipts = ist->last_dts;
1905 if (ist->discard || input_files[ist->file_index]->eagain)
1907 if (!input_files[ist->file_index]->eof_reached) {
1908 if (ipts < ipts_min) {
1910 ifile = input_files[ist->file_index];
1919 static void *input_thread(void *arg)
1924 while (!transcoding_finished && ret >= 0) {
1926 ret = av_read_frame(f->ctx, &pkt);
1928 if (ret == AVERROR(EAGAIN)) {
1935 pthread_mutex_lock(&f->fifo_lock);
1936 while (!av_fifo_space(f->fifo))
1937 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
1939 av_dup_packet(&pkt);
1940 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
1942 pthread_mutex_unlock(&f->fifo_lock);
1949 static void free_input_threads(void)
1953 if (nb_input_files == 1)
1956 transcoding_finished = 1;
1958 for (i = 0; i < nb_input_files; i++) {
1959 InputFile *f = input_files[i];
1962 if (!f->fifo || f->joined)
1965 pthread_mutex_lock(&f->fifo_lock);
1966 while (av_fifo_size(f->fifo)) {
1967 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
1968 av_free_packet(&pkt);
1970 pthread_cond_signal(&f->fifo_cond);
1971 pthread_mutex_unlock(&f->fifo_lock);
1973 pthread_join(f->thread, NULL);
1976 while (av_fifo_size(f->fifo)) {
1977 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
1978 av_free_packet(&pkt);
1980 av_fifo_free(f->fifo);
1984 static int init_input_threads(void)
1988 if (nb_input_files == 1)
1991 for (i = 0; i < nb_input_files; i++) {
1992 InputFile *f = input_files[i];
1994 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
1995 return AVERROR(ENOMEM);
1997 pthread_mutex_init(&f->fifo_lock, NULL);
1998 pthread_cond_init (&f->fifo_cond, NULL);
2000 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2001 return AVERROR(ret);
2006 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2010 pthread_mutex_lock(&f->fifo_lock);
2012 if (av_fifo_size(f->fifo)) {
2013 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2014 pthread_cond_signal(&f->fifo_cond);
2019 ret = AVERROR(EAGAIN);
2022 pthread_mutex_unlock(&f->fifo_lock);
2028 static int get_input_packet(InputFile *f, AVPacket *pkt)
2032 for (i = 0; i < f->nb_streams; i++) {
2033 InputStream *ist = input_streams[f->ist_index + i];
2034 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2035 int64_t now = av_gettime() - ist->start;
2037 return AVERROR(EAGAIN);
2042 if (nb_input_files > 1)
2043 return get_input_packet_mt(f, pkt);
2045 return av_read_frame(f->ctx, pkt);
2048 static int got_eagain(void)
2051 for (i = 0; i < nb_input_files; i++)
2052 if (input_files[i]->eagain)
2057 static void reset_eagain(void)
2060 for (i = 0; i < nb_input_files; i++)
2061 input_files[i]->eagain = 0;
2065 * Read one packet from an input file and send it for
2066 * - decoding -> lavfi (audio/video)
2067 * - decoding -> encoding -> muxing (subtitles)
2068 * - muxing (streamcopy)
2071 * - 0 -- one packet was read and processed
2072 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2073 * this function should be called again
2074 * - AVERROR_EOF -- this function should not be called again
2076 static int process_input(void)
2079 AVFormatContext *is;
2084 /* select the stream that we must read now */
2085 ifile = select_input_file();
2086 /* if none, if is finished */
2091 return AVERROR(EAGAIN);
2093 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2098 ret = get_input_packet(ifile, &pkt);
2100 if (ret == AVERROR(EAGAIN)) {
2105 if (ret != AVERROR_EOF) {
2106 print_error(is->filename, ret);
2110 ifile->eof_reached = 1;
2112 for (i = 0; i < ifile->nb_streams; i++) {
2113 ist = input_streams[ifile->ist_index + i];
2114 if (ist->decoding_needed)
2115 output_packet(ist, NULL);
2117 /* mark all outputs that don't go through lavfi as finished */
2118 for (j = 0; j < nb_output_streams; j++) {
2119 OutputStream *ost = output_streams[j];
2121 if (ost->source_index == ifile->ist_index + i &&
2122 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2127 return AVERROR(EAGAIN);
2133 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2134 is->streams[pkt.stream_index]);
2136 /* the following test is needed in case new streams appear
2137 dynamically in stream : we ignore them */
2138 if (pkt.stream_index >= ifile->nb_streams)
2139 goto discard_packet;
2141 ist = input_streams[ifile->ist_index + pkt.stream_index];
2143 goto discard_packet;
2145 if (pkt.dts != AV_NOPTS_VALUE)
2146 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2147 if (pkt.pts != AV_NOPTS_VALUE)
2148 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2150 if (pkt.pts != AV_NOPTS_VALUE)
2151 pkt.pts *= ist->ts_scale;
2152 if (pkt.dts != AV_NOPTS_VALUE)
2153 pkt.dts *= ist->ts_scale;
2155 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2156 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2157 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2158 int64_t delta = pkt_dts - ist->next_dts;
2160 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2161 ifile->ts_offset -= delta;
2162 av_log(NULL, AV_LOG_DEBUG,
2163 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2164 delta, ifile->ts_offset);
2165 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2166 if (pkt.pts != AV_NOPTS_VALUE)
2167 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2171 ret = output_packet(ist, &pkt);
2173 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2174 ist->file_index, ist->st->index);
2180 av_free_packet(&pkt);
2186 * The following code is the main loop of the file converter
2188 static int transcode(void)
2190 int ret, i, need_input = 1;
2191 AVFormatContext *os;
2194 int64_t timer_start;
2196 ret = transcode_init();
2200 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2203 timer_start = av_gettime();
2206 if ((ret = init_input_threads()) < 0)
2210 while (!received_sigterm) {
2211 /* check if there's any stream where output is still needed */
2212 if (!need_output()) {
2213 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2217 /* read and process one input packet if needed */
2219 ret = process_input();
2220 if (ret == AVERROR_EOF)
2224 ret = poll_filters();
2226 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
2229 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2233 /* dump report by using the output first video and audio streams */
2234 print_report(0, timer_start);
2237 free_input_threads();
2240 /* at the end of stream, we must flush the decoder buffers */
2241 for (i = 0; i < nb_input_streams; i++) {
2242 ist = input_streams[i];
2243 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2244 output_packet(ist, NULL);
2252 /* write the trailer if needed and close file */
2253 for (i = 0; i < nb_output_files; i++) {
2254 os = output_files[i]->ctx;
2255 av_write_trailer(os);
2258 /* dump report by using the first video and audio streams */
2259 print_report(1, timer_start);
2261 /* close each encoder */
2262 for (i = 0; i < nb_output_streams; i++) {
2263 ost = output_streams[i];
2264 if (ost->encoding_needed) {
2265 av_freep(&ost->st->codec->stats_in);
2266 avcodec_close(ost->st->codec);
2270 /* close each decoder */
2271 for (i = 0; i < nb_input_streams; i++) {
2272 ist = input_streams[i];
2273 if (ist->decoding_needed) {
2274 avcodec_close(ist->st->codec);
2283 free_input_threads();
2286 if (output_streams) {
2287 for (i = 0; i < nb_output_streams; i++) {
2288 ost = output_streams[i];
2290 if (ost->stream_copy)
2291 av_freep(&ost->st->codec->extradata);
2293 fclose(ost->logfile);
2294 ost->logfile = NULL;
2296 av_freep(&ost->st->codec->subtitle_header);
2297 av_free(ost->forced_kf_pts);
2298 av_dict_free(&ost->opts);
2299 av_dict_free(&ost->resample_opts);
2306 static int64_t getutime(void)
2309 struct rusage rusage;
2311 getrusage(RUSAGE_SELF, &rusage);
2312 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2313 #elif HAVE_GETPROCESSTIMES
2315 FILETIME c, e, k, u;
2316 proc = GetCurrentProcess();
2317 GetProcessTimes(proc, &c, &e, &k, &u);
2318 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2320 return av_gettime();
2324 static int64_t getmaxrss(void)
2326 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2327 struct rusage rusage;
2328 getrusage(RUSAGE_SELF, &rusage);
2329 return (int64_t)rusage.ru_maxrss * 1024;
2330 #elif HAVE_GETPROCESSMEMORYINFO
2332 PROCESS_MEMORY_COUNTERS memcounters;
2333 proc = GetCurrentProcess();
2334 memcounters.cb = sizeof(memcounters);
2335 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2336 return memcounters.PeakPagefileUsage;
2342 int main(int argc, char **argv)
2347 register_exit(avconv_cleanup);
2349 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2350 parse_loglevel(argc, argv, options);
2352 avcodec_register_all();
2354 avdevice_register_all();
2356 avfilter_register_all();
2358 avformat_network_init();
2362 /* parse options and open all input/output files */
2363 ret = avconv_parse_options(argc, argv);
2367 if (nb_output_files <= 0 && nb_input_files == 0) {
2369 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2373 /* file converter / grab */
2374 if (nb_output_files <= 0) {
2375 fprintf(stderr, "At least one output file must be specified\n");
2380 if (transcode() < 0)
2382 ti = getutime() - ti;
2384 int maxrss = getmaxrss() / 1024;
2385 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);