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
32 #include "libavformat/avformat.h"
33 #include "libavdevice/avdevice.h"
34 #include "libswscale/swscale.h"
35 #include "libavresample/avresample.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/channel_layout.h"
38 #include "libavutil/parseutils.h"
39 #include "libavutil/samplefmt.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavutil/imgutils.h"
48 #include "libavutil/time.h"
49 #include "libavformat/os_support.h"
51 # include "libavfilter/avfilter.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 int nb_frames_drop = 0;
92 /* signal to input threads that they should exit; set by the main thread */
93 static int transcoding_finished;
96 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
98 InputStream **input_streams = NULL;
99 int nb_input_streams = 0;
100 InputFile **input_files = NULL;
101 int nb_input_files = 0;
103 OutputStream **output_streams = NULL;
104 int nb_output_streams = 0;
105 OutputFile **output_files = NULL;
106 int nb_output_files = 0;
108 FilterGraph **filtergraphs;
111 static void term_exit(void)
113 av_log(NULL, AV_LOG_QUIET, "");
116 static volatile int received_sigterm = 0;
117 static volatile int received_nb_signals = 0;
120 sigterm_handler(int sig)
122 received_sigterm = sig;
123 received_nb_signals++;
127 static void term_init(void)
129 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
130 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
132 signal(SIGXCPU, sigterm_handler);
136 static int decode_interrupt_cb(void *ctx)
138 return received_nb_signals > 1;
141 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
143 static void avconv_cleanup(int ret)
147 for (i = 0; i < nb_filtergraphs; i++) {
148 FilterGraph *fg = filtergraphs[i];
149 avfilter_graph_free(&fg->graph);
150 for (j = 0; j < fg->nb_inputs; j++) {
151 av_freep(&fg->inputs[j]->name);
152 av_freep(&fg->inputs[j]);
154 av_freep(&fg->inputs);
155 for (j = 0; j < fg->nb_outputs; j++) {
156 av_freep(&fg->outputs[j]->name);
157 av_freep(&fg->outputs[j]);
159 av_freep(&fg->outputs);
160 av_freep(&fg->graph_desc);
162 av_freep(&filtergraphs[i]);
164 av_freep(&filtergraphs);
167 for (i = 0; i < nb_output_files; i++) {
168 OutputFile *of = output_files[i];
169 AVFormatContext *s = of->ctx;
170 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
172 avformat_free_context(s);
173 av_dict_free(&of->opts);
175 av_freep(&output_files[i]);
177 for (i = 0; i < nb_output_streams; i++) {
178 OutputStream *ost = output_streams[i];
179 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
181 AVBitStreamFilterContext *next = bsfc->next;
182 av_bitstream_filter_close(bsfc);
185 ost->bitstream_filters = NULL;
186 av_frame_free(&ost->filtered_frame);
188 av_parser_close(ost->parser);
190 av_freep(&ost->forced_keyframes);
191 av_freep(&ost->avfilter);
192 av_freep(&ost->logfile_prefix);
194 avcodec_free_context(&ost->enc_ctx);
196 av_freep(&output_streams[i]);
198 for (i = 0; i < nb_input_files; i++) {
199 avformat_close_input(&input_files[i]->ctx);
200 av_freep(&input_files[i]);
202 for (i = 0; i < nb_input_streams; i++) {
203 InputStream *ist = input_streams[i];
205 av_frame_free(&ist->decoded_frame);
206 av_frame_free(&ist->filter_frame);
207 av_dict_free(&ist->decoder_opts);
208 av_freep(&ist->filters);
209 av_freep(&ist->hwaccel_device);
211 avcodec_free_context(&ist->dec_ctx);
213 av_freep(&input_streams[i]);
218 av_free(vstats_filename);
220 av_freep(&input_streams);
221 av_freep(&input_files);
222 av_freep(&output_streams);
223 av_freep(&output_files);
227 avformat_network_deinit();
229 if (received_sigterm) {
230 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
231 (int) received_sigterm);
236 void assert_avoptions(AVDictionary *m)
238 AVDictionaryEntry *t;
239 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
240 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
245 static void abort_codec_experimental(AVCodec *c, int encoder)
247 const char *codec_string = encoder ? "encoder" : "decoder";
249 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
250 "results.\nAdd '-strict experimental' if you want to use it.\n",
251 codec_string, c->name);
252 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
253 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
254 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
255 codec_string, codec->name);
259 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
261 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
262 AVCodecContext *avctx = ost->encoding_needed ? ost->enc_ctx : ost->st->codec;
266 * Audio encoders may split the packets -- #frames in != #packets out.
267 * But there is no reordering, so we can limit the number of output packets
268 * by simply dropping them here.
269 * Counting encoded video frames needs to be done separately because of
270 * reordering, see do_video_out()
272 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
273 if (ost->frame_number >= ost->max_frames) {
281 AVPacket new_pkt = *pkt;
282 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
283 &new_pkt.data, &new_pkt.size,
284 pkt->data, pkt->size,
285 pkt->flags & AV_PKT_FLAG_KEY);
288 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
289 av_buffer_default_free, NULL, 0);
293 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
294 bsfc->filter->name, pkt->stream_index,
295 avctx->codec ? avctx->codec->name : "copy");
305 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
306 ost->last_mux_dts != AV_NOPTS_VALUE &&
307 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
308 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
309 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
310 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
312 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
315 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
316 "in incorrect timestamps in the output file.\n",
317 ost->last_mux_dts + 1);
318 pkt->dts = ost->last_mux_dts + 1;
319 if (pkt->pts != AV_NOPTS_VALUE)
320 pkt->pts = FFMAX(pkt->pts, pkt->dts);
322 ost->last_mux_dts = pkt->dts;
324 ost->data_size += pkt->size;
325 ost->packets_written++;
327 pkt->stream_index = ost->index;
328 ret = av_interleaved_write_frame(s, pkt);
330 print_error("av_interleaved_write_frame()", ret);
335 static int check_recording_time(OutputStream *ost)
337 OutputFile *of = output_files[ost->file_index];
339 if (of->recording_time != INT64_MAX &&
340 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
341 AV_TIME_BASE_Q) >= 0) {
348 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
351 AVCodecContext *enc = ost->enc_ctx;
355 av_init_packet(&pkt);
359 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
360 frame->pts = ost->sync_opts;
361 ost->sync_opts = frame->pts + frame->nb_samples;
363 ost->samples_encoded += frame->nb_samples;
364 ost->frames_encoded++;
366 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
367 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
372 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
373 write_frame(s, &pkt, ost);
377 static void do_subtitle_out(AVFormatContext *s,
383 static uint8_t *subtitle_out = NULL;
384 int subtitle_out_max_size = 1024 * 1024;
385 int subtitle_out_size, nb, i;
389 if (pts == AV_NOPTS_VALUE) {
390 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
399 subtitle_out = av_malloc(subtitle_out_max_size);
402 /* Note: DVB subtitle need one packet to draw them and one other
403 packet to clear them */
404 /* XXX: signal it in the codec context ? */
405 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
410 for (i = 0; i < nb; i++) {
411 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
412 if (!check_recording_time(ost))
415 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
416 // start_display_time is required to be 0
417 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
418 sub->end_display_time -= sub->start_display_time;
419 sub->start_display_time = 0;
421 ost->frames_encoded++;
423 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
424 subtitle_out_max_size, sub);
425 if (subtitle_out_size < 0) {
426 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
430 av_init_packet(&pkt);
431 pkt.data = subtitle_out;
432 pkt.size = subtitle_out_size;
433 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
434 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
435 /* XXX: the pts correction is handled here. Maybe handling
436 it in the codec would be better */
438 pkt.pts += 90 * sub->start_display_time;
440 pkt.pts += 90 * sub->end_display_time;
442 write_frame(s, &pkt, ost);
446 static void do_video_out(AVFormatContext *s,
451 int ret, format_video_sync;
453 AVCodecContext *enc = ost->enc_ctx;
457 format_video_sync = video_sync_method;
458 if (format_video_sync == VSYNC_AUTO)
459 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
460 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
461 if (format_video_sync != VSYNC_PASSTHROUGH &&
463 in_picture->pts != AV_NOPTS_VALUE &&
464 in_picture->pts < ost->sync_opts) {
466 av_log(NULL, AV_LOG_WARNING,
467 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
468 ost->frame_number, ost->st->index, in_picture->pts);
472 if (in_picture->pts == AV_NOPTS_VALUE)
473 in_picture->pts = ost->sync_opts;
474 ost->sync_opts = in_picture->pts;
477 if (!ost->frame_number)
478 ost->first_pts = in_picture->pts;
480 av_init_packet(&pkt);
484 if (ost->frame_number >= ost->max_frames)
487 if (s->oformat->flags & AVFMT_RAWPICTURE &&
488 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
489 /* raw pictures are written as AVPicture structure to
490 avoid any copies. We support temporarily the older
492 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
493 enc->coded_frame->top_field_first = in_picture->top_field_first;
494 pkt.data = (uint8_t *)in_picture;
495 pkt.size = sizeof(AVPicture);
496 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
497 pkt.flags |= AV_PKT_FLAG_KEY;
499 write_frame(s, &pkt, ost);
503 if (enc->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
504 ost->top_field_first >= 0)
505 in_picture->top_field_first = !!ost->top_field_first;
507 in_picture->quality = enc->global_quality;
508 in_picture->pict_type = 0;
509 if (ost->forced_kf_index < ost->forced_kf_count &&
510 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
511 in_picture->pict_type = AV_PICTURE_TYPE_I;
512 ost->forced_kf_index++;
515 ost->frames_encoded++;
517 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
519 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
524 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
525 write_frame(s, &pkt, ost);
526 *frame_size = pkt.size;
528 /* if two pass, output log */
529 if (ost->logfile && enc->stats_out) {
530 fprintf(ost->logfile, "%s", enc->stats_out);
536 * For video, number of frames in == number of packets out.
537 * But there may be reordering, so we can't throw away frames on encoder
538 * flush, we need to limit them here, before they go into encoder.
543 static double psnr(double d)
545 return -10.0 * log(d) / log(10.0);
548 static void do_video_stats(OutputStream *ost, int frame_size)
552 double ti1, bitrate, avg_bitrate;
554 /* this is executed just the first time do_video_stats is called */
556 vstats_file = fopen(vstats_filename, "w");
564 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
565 frame_number = ost->frame_number;
566 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
567 if (enc->flags&CODEC_FLAG_PSNR)
568 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
570 fprintf(vstats_file,"f_size= %6d ", frame_size);
571 /* compute pts value */
572 ti1 = ost->sync_opts * av_q2d(enc->time_base);
576 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
577 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
578 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
579 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
580 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
585 * Read one frame for lavfi output for ost and encode it.
587 static int poll_filter(OutputStream *ost)
589 OutputFile *of = output_files[ost->file_index];
590 AVFrame *filtered_frame = NULL;
593 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
594 return AVERROR(ENOMEM);
596 filtered_frame = ost->filtered_frame;
598 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
599 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
600 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
601 ost->enc_ctx->frame_size);
603 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
608 if (filtered_frame->pts != AV_NOPTS_VALUE) {
609 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
610 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
611 ost->filter->filter->inputs[0]->time_base,
612 ost->enc_ctx->time_base) -
613 av_rescale_q(start_time,
615 ost->enc_ctx->time_base);
618 switch (ost->filter->filter->inputs[0]->type) {
619 case AVMEDIA_TYPE_VIDEO:
620 if (!ost->frame_aspect_ratio)
621 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
623 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
624 if (vstats_filename && frame_size)
625 do_video_stats(ost, frame_size);
627 case AVMEDIA_TYPE_AUDIO:
628 do_audio_out(of->ctx, ost, filtered_frame);
631 // TODO support subtitle filters
635 av_frame_unref(filtered_frame);
640 static void finish_output_stream(OutputStream *ost)
642 OutputFile *of = output_files[ost->file_index];
648 for (i = 0; i < of->ctx->nb_streams; i++)
649 output_streams[of->ost_index + i]->finished = 1;
654 * Read as many frames from possible from lavfi and encode them.
656 * Always read from the active stream with the lowest timestamp. If no frames
657 * are available for it then return EAGAIN and wait for more input. This way we
658 * can use lavfi sources that generate unlimited amount of frames without memory
661 static int poll_filters(void)
665 while (ret >= 0 && !received_sigterm) {
666 OutputStream *ost = NULL;
667 int64_t min_pts = INT64_MAX;
669 /* choose output stream with the lowest timestamp */
670 for (i = 0; i < nb_output_streams; i++) {
671 int64_t pts = output_streams[i]->sync_opts;
673 if (!output_streams[i]->filter || output_streams[i]->finished)
676 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
680 ost = output_streams[i];
687 ret = poll_filter(ost);
689 if (ret == AVERROR_EOF) {
690 finish_output_stream(ost);
692 } else if (ret == AVERROR(EAGAIN))
699 static void print_final_stats(int64_t total_size)
701 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
702 uint64_t data_size = 0;
703 float percent = -1.0;
706 for (i = 0; i < nb_output_streams; i++) {
707 OutputStream *ost = output_streams[i];
708 switch (ost->enc_ctx->codec_type) {
709 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
710 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
711 default: other_size += ost->data_size; break;
713 extra_size += ost->enc_ctx->extradata_size;
714 data_size += ost->data_size;
717 if (data_size && total_size >= data_size)
718 percent = 100.0 * (total_size - data_size) / data_size;
720 av_log(NULL, AV_LOG_INFO, "\n");
721 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
725 extra_size / 1024.0);
727 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
729 av_log(NULL, AV_LOG_INFO, "unknown");
730 av_log(NULL, AV_LOG_INFO, "\n");
732 /* print verbose per-stream stats */
733 for (i = 0; i < nb_input_files; i++) {
734 InputFile *f = input_files[i];
735 uint64_t total_packets = 0, total_size = 0;
737 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
738 i, f->ctx->filename);
740 for (j = 0; j < f->nb_streams; j++) {
741 InputStream *ist = input_streams[f->ist_index + j];
742 enum AVMediaType type = ist->dec_ctx->codec_type;
744 total_size += ist->data_size;
745 total_packets += ist->nb_packets;
747 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
748 i, j, media_type_string(type));
749 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
750 ist->nb_packets, ist->data_size);
752 if (ist->decoding_needed) {
753 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
754 ist->frames_decoded);
755 if (type == AVMEDIA_TYPE_AUDIO)
756 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
757 av_log(NULL, AV_LOG_VERBOSE, "; ");
760 av_log(NULL, AV_LOG_VERBOSE, "\n");
763 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
764 total_packets, total_size);
767 for (i = 0; i < nb_output_files; i++) {
768 OutputFile *of = output_files[i];
769 uint64_t total_packets = 0, total_size = 0;
771 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
772 i, of->ctx->filename);
774 for (j = 0; j < of->ctx->nb_streams; j++) {
775 OutputStream *ost = output_streams[of->ost_index + j];
776 enum AVMediaType type = ost->enc_ctx->codec_type;
778 total_size += ost->data_size;
779 total_packets += ost->packets_written;
781 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
782 i, j, media_type_string(type));
783 if (ost->encoding_needed) {
784 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
785 ost->frames_encoded);
786 if (type == AVMEDIA_TYPE_AUDIO)
787 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
788 av_log(NULL, AV_LOG_VERBOSE, "; ");
791 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
792 ost->packets_written, ost->data_size);
794 av_log(NULL, AV_LOG_VERBOSE, "\n");
797 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
798 total_packets, total_size);
802 static void print_report(int is_last_report, int64_t timer_start)
809 int frame_number, vid, i;
810 double bitrate, ti1, pts;
811 static int64_t last_time = -1;
812 static int qp_histogram[52];
814 if (!print_stats && !is_last_report)
817 if (!is_last_report) {
819 /* display the report every 0.5 seconds */
820 cur_time = av_gettime_relative();
821 if (last_time == -1) {
822 last_time = cur_time;
825 if ((cur_time - last_time) < 500000)
827 last_time = cur_time;
831 oc = output_files[0]->ctx;
833 total_size = avio_size(oc->pb);
834 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
835 total_size = avio_tell(oc->pb);
836 if (total_size < 0) {
838 av_strerror(total_size, errbuf, sizeof(errbuf));
839 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
840 "avio_tell() failed: %s\n", errbuf);
847 for (i = 0; i < nb_output_streams; i++) {
849 ost = output_streams[i];
851 if (!ost->stream_copy && enc->coded_frame)
852 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
853 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
854 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
856 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
857 float t = (av_gettime_relative() - timer_start) / 1000000.0;
859 frame_number = ost->frame_number;
860 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
861 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
863 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
867 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
869 for (j = 0; j < 32; j++)
870 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
872 if (enc->flags&CODEC_FLAG_PSNR) {
874 double error, error_sum = 0;
875 double scale, scale_sum = 0;
876 char type[3] = { 'Y','U','V' };
877 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
878 for (j = 0; j < 3; j++) {
879 if (is_last_report) {
880 error = enc->error[j];
881 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
883 error = enc->coded_frame->error[j];
884 scale = enc->width * enc->height * 255.0 * 255.0;
890 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
892 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
896 /* compute min output value */
897 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
898 if ((pts < ti1) && (pts > 0))
904 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
906 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
907 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
908 (double)total_size / 1024, ti1, bitrate);
911 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
914 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
919 print_final_stats(total_size);
923 static void flush_encoders(void)
927 for (i = 0; i < nb_output_streams; i++) {
928 OutputStream *ost = output_streams[i];
929 AVCodecContext *enc = ost->enc_ctx;
930 AVFormatContext *os = output_files[ost->file_index]->ctx;
931 int stop_encoding = 0;
933 if (!ost->encoding_needed)
936 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
938 if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
942 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
945 switch (enc->codec_type) {
946 case AVMEDIA_TYPE_AUDIO:
947 encode = avcodec_encode_audio2;
950 case AVMEDIA_TYPE_VIDEO:
951 encode = avcodec_encode_video2;
961 av_init_packet(&pkt);
965 ret = encode(enc, &pkt, NULL, &got_packet);
967 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
970 if (ost->logfile && enc->stats_out) {
971 fprintf(ost->logfile, "%s", enc->stats_out);
977 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
978 write_frame(os, &pkt, ost);
988 * Check whether a packet from ist should be written into ost at this time
990 static int check_output_constraints(InputStream *ist, OutputStream *ost)
992 OutputFile *of = output_files[ost->file_index];
993 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
995 if (ost->source_index != ist_index)
998 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1004 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1006 OutputFile *of = output_files[ost->file_index];
1007 InputFile *f = input_files [ist->file_index];
1008 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1009 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1012 av_init_packet(&opkt);
1014 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1015 !ost->copy_initial_nonkeyframes)
1018 if (of->recording_time != INT64_MAX &&
1019 ist->last_dts >= of->recording_time + start_time) {
1024 if (f->recording_time != INT64_MAX) {
1025 start_time = f->ctx->start_time;
1026 if (f->start_time != AV_NOPTS_VALUE)
1027 start_time += f->start_time;
1028 if (ist->last_dts >= f->recording_time + start_time) {
1034 /* force the input stream PTS */
1035 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1038 if (pkt->pts != AV_NOPTS_VALUE)
1039 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1041 opkt.pts = AV_NOPTS_VALUE;
1043 if (pkt->dts == AV_NOPTS_VALUE)
1044 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1046 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1047 opkt.dts -= ost_tb_start_time;
1049 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1050 opkt.flags = pkt->flags;
1052 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1053 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1054 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1055 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1056 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1058 if (av_parser_change(ost->parser, ost->st->codec,
1059 &opkt.data, &opkt.size,
1060 pkt->data, pkt->size,
1061 pkt->flags & AV_PKT_FLAG_KEY)) {
1062 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1067 opkt.data = pkt->data;
1068 opkt.size = pkt->size;
1071 write_frame(of->ctx, &opkt, ost);
1074 int guess_input_channel_layout(InputStream *ist)
1076 AVCodecContext *dec = ist->dec_ctx;
1078 if (!dec->channel_layout) {
1079 char layout_name[256];
1081 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1082 if (!dec->channel_layout)
1084 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1085 dec->channels, dec->channel_layout);
1086 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1087 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1092 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1094 AVFrame *decoded_frame, *f;
1095 AVCodecContext *avctx = ist->dec_ctx;
1096 int i, ret, err = 0, resample_changed;
1098 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1099 return AVERROR(ENOMEM);
1100 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1101 return AVERROR(ENOMEM);
1102 decoded_frame = ist->decoded_frame;
1104 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1105 if (!*got_output || ret < 0)
1108 ist->samples_decoded += decoded_frame->nb_samples;
1109 ist->frames_decoded++;
1111 /* if the decoder provides a pts, use it instead of the last packet pts.
1112 the decoder could be delaying output by a packet or more. */
1113 if (decoded_frame->pts != AV_NOPTS_VALUE)
1114 ist->next_dts = decoded_frame->pts;
1115 else if (pkt->pts != AV_NOPTS_VALUE)
1116 decoded_frame->pts = pkt->pts;
1117 pkt->pts = AV_NOPTS_VALUE;
1119 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1120 ist->resample_channels != avctx->channels ||
1121 ist->resample_channel_layout != decoded_frame->channel_layout ||
1122 ist->resample_sample_rate != decoded_frame->sample_rate;
1123 if (resample_changed) {
1124 char layout1[64], layout2[64];
1126 if (!guess_input_channel_layout(ist)) {
1127 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1128 "layout for Input Stream #%d.%d\n", ist->file_index,
1132 decoded_frame->channel_layout = avctx->channel_layout;
1134 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1135 ist->resample_channel_layout);
1136 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1137 decoded_frame->channel_layout);
1139 av_log(NULL, AV_LOG_INFO,
1140 "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",
1141 ist->file_index, ist->st->index,
1142 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1143 ist->resample_channels, layout1,
1144 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1145 avctx->channels, layout2);
1147 ist->resample_sample_fmt = decoded_frame->format;
1148 ist->resample_sample_rate = decoded_frame->sample_rate;
1149 ist->resample_channel_layout = decoded_frame->channel_layout;
1150 ist->resample_channels = avctx->channels;
1152 for (i = 0; i < nb_filtergraphs; i++)
1153 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1154 configure_filtergraph(filtergraphs[i]) < 0) {
1155 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1160 if (decoded_frame->pts != AV_NOPTS_VALUE)
1161 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1163 (AVRational){1, avctx->sample_rate});
1164 for (i = 0; i < ist->nb_filters; i++) {
1165 if (i < ist->nb_filters - 1) {
1166 f = ist->filter_frame;
1167 err = av_frame_ref(f, decoded_frame);
1173 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1178 av_frame_unref(ist->filter_frame);
1179 av_frame_unref(decoded_frame);
1180 return err < 0 ? err : ret;
1183 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1185 AVFrame *decoded_frame, *f;
1186 int i, ret = 0, err = 0, resample_changed;
1188 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1189 return AVERROR(ENOMEM);
1190 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1191 return AVERROR(ENOMEM);
1192 decoded_frame = ist->decoded_frame;
1194 ret = avcodec_decode_video2(ist->dec_ctx,
1195 decoded_frame, got_output, pkt);
1196 if (!*got_output || ret < 0)
1199 ist->frames_decoded++;
1201 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1202 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1206 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1208 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1209 decoded_frame->pkt_dts);
1212 if (ist->st->sample_aspect_ratio.num)
1213 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1215 resample_changed = ist->resample_width != decoded_frame->width ||
1216 ist->resample_height != decoded_frame->height ||
1217 ist->resample_pix_fmt != decoded_frame->format;
1218 if (resample_changed) {
1219 av_log(NULL, AV_LOG_INFO,
1220 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1221 ist->file_index, ist->st->index,
1222 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1223 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1225 ret = poll_filters();
1226 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN))) {
1228 av_strerror(ret, errbuf, sizeof(errbuf));
1230 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1233 ist->resample_width = decoded_frame->width;
1234 ist->resample_height = decoded_frame->height;
1235 ist->resample_pix_fmt = decoded_frame->format;
1237 for (i = 0; i < nb_filtergraphs; i++)
1238 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1239 configure_filtergraph(filtergraphs[i]) < 0) {
1240 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1245 for (i = 0; i < ist->nb_filters; i++) {
1246 if (i < ist->nb_filters - 1) {
1247 f = ist->filter_frame;
1248 err = av_frame_ref(f, decoded_frame);
1254 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1260 av_frame_unref(ist->filter_frame);
1261 av_frame_unref(decoded_frame);
1262 return err < 0 ? err : ret;
1265 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1267 AVSubtitle subtitle;
1268 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1269 &subtitle, got_output, pkt);
1275 ist->frames_decoded++;
1277 for (i = 0; i < nb_output_streams; i++) {
1278 OutputStream *ost = output_streams[i];
1280 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1283 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1286 avsubtitle_free(&subtitle);
1290 static int send_filter_eof(InputStream *ist)
1293 for (i = 0; i < ist->nb_filters; i++) {
1294 ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1301 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1302 static void process_input_packet(InputStream *ist, const AVPacket *pkt)
1308 if (ist->next_dts == AV_NOPTS_VALUE)
1309 ist->next_dts = ist->last_dts;
1313 av_init_packet(&avpkt);
1321 if (pkt->dts != AV_NOPTS_VALUE)
1322 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1324 // while we have more to decode or while the decoder did output something on EOF
1325 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1329 ist->last_dts = ist->next_dts;
1331 if (avpkt.size && avpkt.size != pkt->size &&
1332 !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
1333 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1334 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1335 ist->showed_multi_packet_warning = 1;
1338 switch (ist->dec_ctx->codec_type) {
1339 case AVMEDIA_TYPE_AUDIO:
1340 ret = decode_audio (ist, &avpkt, &got_output);
1342 case AVMEDIA_TYPE_VIDEO:
1343 ret = decode_video (ist, &avpkt, &got_output);
1345 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1346 else if (ist->st->avg_frame_rate.num)
1347 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1349 else if (ist->dec_ctx->framerate.num != 0) {
1350 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1351 ist->dec_ctx->ticks_per_frame;
1352 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
1355 case AVMEDIA_TYPE_SUBTITLE:
1356 ret = transcode_subtitles(ist, &avpkt, &got_output);
1363 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1364 ist->file_index, ist->st->index);
1370 // touch data and size only if not EOF
1380 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1381 if (!pkt && ist->decoding_needed) {
1382 int ret = send_filter_eof(ist);
1384 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1389 /* handle stream copy */
1390 if (!ist->decoding_needed) {
1391 ist->last_dts = ist->next_dts;
1392 switch (ist->dec_ctx->codec_type) {
1393 case AVMEDIA_TYPE_AUDIO:
1394 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1395 ist->dec_ctx->sample_rate;
1397 case AVMEDIA_TYPE_VIDEO:
1398 if (ist->dec_ctx->framerate.num != 0) {
1399 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1400 ist->next_dts += ((int64_t)AV_TIME_BASE *
1401 ist->dec_ctx->framerate.den * ticks) /
1402 ist->dec_ctx->framerate.num;
1407 for (i = 0; pkt && i < nb_output_streams; i++) {
1408 OutputStream *ost = output_streams[i];
1410 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1413 do_streamcopy(ist, ost, pkt);
1419 static void print_sdp(void)
1423 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1427 for (i = 0; i < nb_output_files; i++)
1428 avc[i] = output_files[i]->ctx;
1430 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1431 printf("SDP:\n%s\n", sdp);
1436 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1439 for (i = 0; hwaccels[i].name; i++)
1440 if (hwaccels[i].pix_fmt == pix_fmt)
1441 return &hwaccels[i];
1445 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1447 InputStream *ist = s->opaque;
1448 const enum AVPixelFormat *p;
1451 for (p = pix_fmts; *p != -1; p++) {
1452 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1453 const HWAccel *hwaccel;
1455 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1458 hwaccel = get_hwaccel(*p);
1460 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1461 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1464 ret = hwaccel->init(s);
1466 if (ist->hwaccel_id == hwaccel->id) {
1467 av_log(NULL, AV_LOG_FATAL,
1468 "%s hwaccel requested for input stream #%d:%d, "
1469 "but cannot be initialized.\n", hwaccel->name,
1470 ist->file_index, ist->st->index);
1471 return AV_PIX_FMT_NONE;
1475 ist->active_hwaccel_id = hwaccel->id;
1476 ist->hwaccel_pix_fmt = *p;
1483 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1485 InputStream *ist = s->opaque;
1487 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1488 return ist->hwaccel_get_buffer(s, frame, flags);
1490 return avcodec_default_get_buffer2(s, frame, flags);
1493 static int init_input_stream(int ist_index, char *error, int error_len)
1496 InputStream *ist = input_streams[ist_index];
1497 if (ist->decoding_needed) {
1498 AVCodec *codec = ist->dec;
1500 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1501 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1502 return AVERROR(EINVAL);
1505 ist->dec_ctx->opaque = ist;
1506 ist->dec_ctx->get_format = get_format;
1507 ist->dec_ctx->get_buffer2 = get_buffer;
1508 ist->dec_ctx->thread_safe_callbacks = 1;
1510 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1512 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1513 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1514 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1516 if (ret == AVERROR_EXPERIMENTAL)
1517 abort_codec_experimental(codec, 0);
1519 av_strerror(ret, errbuf, sizeof(errbuf));
1521 snprintf(error, error_len,
1522 "Error while opening decoder for input stream "
1524 ist->file_index, ist->st->index, errbuf);
1527 assert_avoptions(ist->decoder_opts);
1530 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->dec_ctx->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1531 ist->next_dts = AV_NOPTS_VALUE;
1532 init_pts_correction(&ist->pts_ctx);
1537 static InputStream *get_input_stream(OutputStream *ost)
1539 if (ost->source_index >= 0)
1540 return input_streams[ost->source_index];
1543 FilterGraph *fg = ost->filter->graph;
1546 for (i = 0; i < fg->nb_inputs; i++)
1547 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1548 return fg->inputs[i]->ist;
1554 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1555 AVCodecContext *avctx)
1561 for (p = kf; *p; p++)
1564 ost->forced_kf_count = n;
1565 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1566 if (!ost->forced_kf_pts) {
1567 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1572 for (i = 0; i < n; i++) {
1573 char *next = strchr(p, ',');
1578 t = parse_time_or_die("force_key_frames", p, 1);
1579 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1585 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1587 AVDictionaryEntry *e;
1589 uint8_t *encoder_string;
1590 int encoder_string_len;
1591 int format_flags = 0;
1593 e = av_dict_get(of->opts, "fflags", NULL, 0);
1595 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1598 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1601 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1602 encoder_string = av_mallocz(encoder_string_len);
1603 if (!encoder_string)
1606 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1607 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1608 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1609 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1610 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1613 static int transcode_init(void)
1615 int ret = 0, i, j, k;
1616 AVFormatContext *oc;
1622 /* init framerate emulation */
1623 for (i = 0; i < nb_input_files; i++) {
1624 InputFile *ifile = input_files[i];
1625 if (ifile->rate_emu)
1626 for (j = 0; j < ifile->nb_streams; j++)
1627 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
1630 /* output stream init */
1631 for (i = 0; i < nb_output_files; i++) {
1632 oc = output_files[i]->ctx;
1633 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1634 av_dump_format(oc, i, oc->filename, 1);
1635 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1636 return AVERROR(EINVAL);
1640 /* init complex filtergraphs */
1641 for (i = 0; i < nb_filtergraphs; i++)
1642 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1645 /* for each output stream, we compute the right encoding parameters */
1646 for (i = 0; i < nb_output_streams; i++) {
1647 AVCodecContext *enc_ctx;
1648 AVCodecContext *dec_ctx = NULL;
1649 ost = output_streams[i];
1650 oc = output_files[ost->file_index]->ctx;
1651 ist = get_input_stream(ost);
1653 if (ost->attachment_filename)
1656 enc_ctx = ost->stream_copy ? ost->st->codec : ost->enc_ctx;
1659 dec_ctx = ist->dec_ctx;
1661 ost->st->disposition = ist->st->disposition;
1662 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1663 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1666 if (ost->stream_copy) {
1668 uint64_t extra_size;
1670 av_assert0(ist && !ost->filter);
1672 extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1674 if (extra_size > INT_MAX) {
1675 return AVERROR(EINVAL);
1678 /* if stream_copy is selected, no need to decode or encode */
1679 enc_ctx->codec_id = dec_ctx->codec_id;
1680 enc_ctx->codec_type = dec_ctx->codec_type;
1682 if (!enc_ctx->codec_tag) {
1683 if (!oc->oformat->codec_tag ||
1684 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
1685 av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
1686 enc_ctx->codec_tag = dec_ctx->codec_tag;
1689 enc_ctx->bit_rate = dec_ctx->bit_rate;
1690 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
1691 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
1692 enc_ctx->field_order = dec_ctx->field_order;
1693 enc_ctx->extradata = av_mallocz(extra_size);
1694 if (!enc_ctx->extradata) {
1695 return AVERROR(ENOMEM);
1697 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
1698 enc_ctx->extradata_size = dec_ctx->extradata_size;
1700 enc_ctx->time_base = dec_ctx->time_base;
1701 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
1702 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
1703 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
1705 enc_ctx->time_base = ist->st->time_base;
1707 if (ist->st->nb_side_data) {
1708 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1709 sizeof(*ist->st->side_data));
1710 if (!ost->st->side_data)
1711 return AVERROR(ENOMEM);
1713 for (j = 0; j < ist->st->nb_side_data; j++) {
1714 const AVPacketSideData *sd_src = &ist->st->side_data[j];
1715 AVPacketSideData *sd_dst = &ost->st->side_data[j];
1717 sd_dst->data = av_malloc(sd_src->size);
1719 return AVERROR(ENOMEM);
1720 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1721 sd_dst->size = sd_src->size;
1722 sd_dst->type = sd_src->type;
1723 ost->st->nb_side_data++;
1727 ost->parser = av_parser_init(enc_ctx->codec_id);
1729 switch (enc_ctx->codec_type) {
1730 case AVMEDIA_TYPE_AUDIO:
1731 if (audio_volume != 256) {
1732 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1735 enc_ctx->channel_layout = dec_ctx->channel_layout;
1736 enc_ctx->sample_rate = dec_ctx->sample_rate;
1737 enc_ctx->channels = dec_ctx->channels;
1738 enc_ctx->frame_size = dec_ctx->frame_size;
1739 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
1740 enc_ctx->block_align = dec_ctx->block_align;
1742 case AVMEDIA_TYPE_VIDEO:
1743 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
1744 enc_ctx->width = dec_ctx->width;
1745 enc_ctx->height = dec_ctx->height;
1746 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
1747 if (ost->frame_aspect_ratio)
1748 sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
1749 else if (ist->st->sample_aspect_ratio.num)
1750 sar = ist->st->sample_aspect_ratio;
1752 sar = dec_ctx->sample_aspect_ratio;
1753 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
1755 case AVMEDIA_TYPE_SUBTITLE:
1756 enc_ctx->width = dec_ctx->width;
1757 enc_ctx->height = dec_ctx->height;
1759 case AVMEDIA_TYPE_DATA:
1760 case AVMEDIA_TYPE_ATTACHMENT:
1767 /* should only happen when a default codec is not present. */
1768 snprintf(error, sizeof(error), "Automatic encoder selection "
1769 "failed for output stream #%d:%d. Default encoder for "
1770 "format %s is probably disabled. Please choose an "
1771 "encoder manually.\n", ost->file_index, ost->index,
1773 ret = AVERROR(EINVAL);
1778 ist->decoding_needed = 1;
1779 ost->encoding_needed = 1;
1781 set_encoder_id(output_files[ost->file_index], ost);
1784 * We want CFR output if and only if one of those is true:
1785 * 1) user specified output framerate with -r
1786 * 2) user specified -vsync cfr
1787 * 3) output format is CFR and the user didn't force vsync to
1788 * something else than CFR
1790 * in such a case, set ost->frame_rate
1792 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1793 !ost->frame_rate.num && ist &&
1794 (video_sync_method == VSYNC_CFR ||
1795 (video_sync_method == VSYNC_AUTO &&
1796 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1797 if (ist->framerate.num)
1798 ost->frame_rate = ist->framerate;
1799 else if (ist->st->avg_frame_rate.num)
1800 ost->frame_rate = ist->st->avg_frame_rate;
1802 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1803 "for the output stream #%d:%d, but no information "
1804 "about the input framerate is available. Falling "
1805 "back to a default value of 25fps. Use the -r option "
1806 "if you want a different framerate.\n",
1807 ost->file_index, ost->index);
1808 ost->frame_rate = (AVRational){ 25, 1 };
1811 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1812 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1813 ost->frame_rate = ost->enc->supported_framerates[idx];
1818 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1819 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
1821 fg = init_simple_filtergraph(ist, ost);
1822 if (configure_filtergraph(fg)) {
1823 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1828 switch (enc_ctx->codec_type) {
1829 case AVMEDIA_TYPE_AUDIO:
1830 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1831 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1832 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1833 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1834 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
1836 case AVMEDIA_TYPE_VIDEO:
1837 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
1839 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1840 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1841 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1842 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1843 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
1844 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1845 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
1847 ost->st->avg_frame_rate = ost->frame_rate;
1850 (enc_ctx->width != dec_ctx->width ||
1851 enc_ctx->height != dec_ctx->height ||
1852 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1853 enc_ctx->bits_per_raw_sample = 0;
1856 if (ost->forced_keyframes)
1857 parse_forced_key_frames(ost->forced_keyframes, ost,
1860 case AVMEDIA_TYPE_SUBTITLE:
1861 enc_ctx->time_base = (AVRational){1, 1000};
1868 if ((enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1869 char logfilename[1024];
1872 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1873 ost->logfile_prefix ? ost->logfile_prefix :
1874 DEFAULT_PASS_LOGFILENAME_PREFIX,
1876 if (!strcmp(ost->enc->name, "libx264")) {
1877 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1879 if (enc_ctx->flags & CODEC_FLAG_PASS1) {
1880 f = fopen(logfilename, "wb");
1882 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1883 logfilename, strerror(errno));
1889 size_t logbuffer_size;
1890 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1891 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1895 enc_ctx->stats_in = logbuffer;
1902 /* open each encoder */
1903 for (i = 0; i < nb_output_streams; i++) {
1904 ost = output_streams[i];
1905 if (ost->encoding_needed) {
1906 AVCodec *codec = ost->enc;
1907 AVCodecContext *dec = NULL;
1909 if ((ist = get_input_stream(ost)))
1911 if (dec && dec->subtitle_header) {
1912 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
1913 if (!ost->enc_ctx->subtitle_header) {
1914 ret = AVERROR(ENOMEM);
1917 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1918 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
1920 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1921 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
1922 av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
1924 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
1925 if (ret == AVERROR_EXPERIMENTAL)
1926 abort_codec_experimental(codec, 1);
1927 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1928 ost->file_index, ost->index);
1931 assert_avoptions(ost->encoder_opts);
1932 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
1933 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1934 "It takes bits/s as argument, not kbits/s\n");
1936 ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
1938 av_log(NULL, AV_LOG_FATAL,
1939 "Error initializing the output stream codec context.\n");
1943 ost->st->time_base = ost->enc_ctx->time_base;
1945 ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
1948 ost->st->time_base = ost->st->codec->time_base;
1952 /* init input streams */
1953 for (i = 0; i < nb_input_streams; i++)
1954 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1957 /* discard unused programs */
1958 for (i = 0; i < nb_input_files; i++) {
1959 InputFile *ifile = input_files[i];
1960 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1961 AVProgram *p = ifile->ctx->programs[j];
1962 int discard = AVDISCARD_ALL;
1964 for (k = 0; k < p->nb_stream_indexes; k++)
1965 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1966 discard = AVDISCARD_DEFAULT;
1969 p->discard = discard;
1973 /* open files and write file headers */
1974 for (i = 0; i < nb_output_files; i++) {
1975 oc = output_files[i]->ctx;
1976 oc->interrupt_callback = int_cb;
1977 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1979 av_strerror(ret, errbuf, sizeof(errbuf));
1980 snprintf(error, sizeof(error),
1981 "Could not write header for output file #%d "
1982 "(incorrect codec parameters ?): %s",
1984 ret = AVERROR(EINVAL);
1987 assert_avoptions(output_files[i]->opts);
1988 if (strcmp(oc->oformat->name, "rtp")) {
1994 /* dump the file output parameters - cannot be done before in case
1996 for (i = 0; i < nb_output_files; i++) {
1997 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2000 /* dump the stream mapping */
2001 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2002 for (i = 0; i < nb_input_streams; i++) {
2003 ist = input_streams[i];
2005 for (j = 0; j < ist->nb_filters; j++) {
2006 if (ist->filters[j]->graph->graph_desc) {
2007 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2008 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2009 ist->filters[j]->name);
2010 if (nb_filtergraphs > 1)
2011 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2012 av_log(NULL, AV_LOG_INFO, "\n");
2017 for (i = 0; i < nb_output_streams; i++) {
2018 ost = output_streams[i];
2020 if (ost->attachment_filename) {
2021 /* an attached file */
2022 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2023 ost->attachment_filename, ost->file_index, ost->index);
2027 if (ost->filter && ost->filter->graph->graph_desc) {
2028 /* output from a complex graph */
2029 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2030 if (nb_filtergraphs > 1)
2031 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2033 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2034 ost->index, ost->enc ? ost->enc->name : "?");
2038 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2039 input_streams[ost->source_index]->file_index,
2040 input_streams[ost->source_index]->st->index,
2043 if (ost->sync_ist != input_streams[ost->source_index])
2044 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2045 ost->sync_ist->file_index,
2046 ost->sync_ist->st->index);
2047 if (ost->stream_copy)
2048 av_log(NULL, AV_LOG_INFO, " (copy)");
2050 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2051 const AVCodec *out_codec = ost->enc;
2052 const char *decoder_name = "?";
2053 const char *in_codec_name = "?";
2054 const char *encoder_name = "?";
2055 const char *out_codec_name = "?";
2056 const AVCodecDescriptor *desc;
2059 decoder_name = in_codec->name;
2060 desc = avcodec_descriptor_get(in_codec->id);
2062 in_codec_name = desc->name;
2063 if (!strcmp(decoder_name, in_codec_name))
2064 decoder_name = "native";
2068 encoder_name = out_codec->name;
2069 desc = avcodec_descriptor_get(out_codec->id);
2071 out_codec_name = desc->name;
2072 if (!strcmp(encoder_name, out_codec_name))
2073 encoder_name = "native";
2076 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2077 in_codec_name, decoder_name,
2078 out_codec_name, encoder_name);
2080 av_log(NULL, AV_LOG_INFO, "\n");
2084 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2095 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2096 static int need_output(void)
2100 for (i = 0; i < nb_output_streams; i++) {
2101 OutputStream *ost = output_streams[i];
2102 OutputFile *of = output_files[ost->file_index];
2103 AVFormatContext *os = output_files[ost->file_index]->ctx;
2105 if (ost->finished ||
2106 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2108 if (ost->frame_number >= ost->max_frames) {
2110 for (j = 0; j < of->ctx->nb_streams; j++)
2111 output_streams[of->ost_index + j]->finished = 1;
2121 static InputFile *select_input_file(void)
2123 InputFile *ifile = NULL;
2124 int64_t ipts_min = INT64_MAX;
2127 for (i = 0; i < nb_input_streams; i++) {
2128 InputStream *ist = input_streams[i];
2129 int64_t ipts = ist->last_dts;
2131 if (ist->discard || input_files[ist->file_index]->eagain)
2133 if (!input_files[ist->file_index]->eof_reached) {
2134 if (ipts < ipts_min) {
2136 ifile = input_files[ist->file_index];
2145 static void *input_thread(void *arg)
2150 while (!transcoding_finished && ret >= 0) {
2152 ret = av_read_frame(f->ctx, &pkt);
2154 if (ret == AVERROR(EAGAIN)) {
2161 pthread_mutex_lock(&f->fifo_lock);
2162 while (!av_fifo_space(f->fifo))
2163 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2165 av_dup_packet(&pkt);
2166 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2168 pthread_mutex_unlock(&f->fifo_lock);
2175 static void free_input_threads(void)
2179 if (nb_input_files == 1)
2182 transcoding_finished = 1;
2184 for (i = 0; i < nb_input_files; i++) {
2185 InputFile *f = input_files[i];
2188 if (!f->fifo || f->joined)
2191 pthread_mutex_lock(&f->fifo_lock);
2192 while (av_fifo_size(f->fifo)) {
2193 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2194 av_free_packet(&pkt);
2196 pthread_cond_signal(&f->fifo_cond);
2197 pthread_mutex_unlock(&f->fifo_lock);
2199 pthread_join(f->thread, NULL);
2202 while (av_fifo_size(f->fifo)) {
2203 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2204 av_free_packet(&pkt);
2206 av_fifo_free(f->fifo);
2210 static int init_input_threads(void)
2214 if (nb_input_files == 1)
2217 for (i = 0; i < nb_input_files; i++) {
2218 InputFile *f = input_files[i];
2220 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2221 return AVERROR(ENOMEM);
2223 pthread_mutex_init(&f->fifo_lock, NULL);
2224 pthread_cond_init (&f->fifo_cond, NULL);
2226 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2227 return AVERROR(ret);
2232 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2236 pthread_mutex_lock(&f->fifo_lock);
2238 if (av_fifo_size(f->fifo)) {
2239 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2240 pthread_cond_signal(&f->fifo_cond);
2245 ret = AVERROR(EAGAIN);
2248 pthread_mutex_unlock(&f->fifo_lock);
2254 static int get_input_packet(InputFile *f, AVPacket *pkt)
2258 for (i = 0; i < f->nb_streams; i++) {
2259 InputStream *ist = input_streams[f->ist_index + i];
2260 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2261 int64_t now = av_gettime_relative() - ist->start;
2263 return AVERROR(EAGAIN);
2268 if (nb_input_files > 1)
2269 return get_input_packet_mt(f, pkt);
2271 return av_read_frame(f->ctx, pkt);
2274 static int got_eagain(void)
2277 for (i = 0; i < nb_input_files; i++)
2278 if (input_files[i]->eagain)
2283 static void reset_eagain(void)
2286 for (i = 0; i < nb_input_files; i++)
2287 input_files[i]->eagain = 0;
2291 * Read one packet from an input file and send it for
2292 * - decoding -> lavfi (audio/video)
2293 * - decoding -> encoding -> muxing (subtitles)
2294 * - muxing (streamcopy)
2297 * - 0 -- one packet was read and processed
2298 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2299 * this function should be called again
2300 * - AVERROR_EOF -- this function should not be called again
2302 static int process_input(void)
2305 AVFormatContext *is;
2310 /* select the stream that we must read now */
2311 ifile = select_input_file();
2312 /* if none, if is finished */
2317 return AVERROR(EAGAIN);
2319 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2324 ret = get_input_packet(ifile, &pkt);
2326 if (ret == AVERROR(EAGAIN)) {
2331 if (ret != AVERROR_EOF) {
2332 print_error(is->filename, ret);
2336 ifile->eof_reached = 1;
2338 for (i = 0; i < ifile->nb_streams; i++) {
2339 ist = input_streams[ifile->ist_index + i];
2340 if (ist->decoding_needed)
2341 process_input_packet(ist, NULL);
2343 /* mark all outputs that don't go through lavfi as finished */
2344 for (j = 0; j < nb_output_streams; j++) {
2345 OutputStream *ost = output_streams[j];
2347 if (ost->source_index == ifile->ist_index + i &&
2348 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2349 finish_output_stream(ost);
2353 return AVERROR(EAGAIN);
2359 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2360 is->streams[pkt.stream_index]);
2362 /* the following test is needed in case new streams appear
2363 dynamically in stream : we ignore them */
2364 if (pkt.stream_index >= ifile->nb_streams)
2365 goto discard_packet;
2367 ist = input_streams[ifile->ist_index + pkt.stream_index];
2369 ist->data_size += pkt.size;
2373 goto discard_packet;
2375 /* add the stream-global side data to the first packet */
2376 if (ist->nb_packets == 1)
2377 for (i = 0; i < ist->st->nb_side_data; i++) {
2378 AVPacketSideData *src_sd = &ist->st->side_data[i];
2381 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2383 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2386 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2390 memcpy(dst_data, src_sd->data, src_sd->size);
2393 if (pkt.dts != AV_NOPTS_VALUE)
2394 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2395 if (pkt.pts != AV_NOPTS_VALUE)
2396 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2398 if (pkt.pts != AV_NOPTS_VALUE)
2399 pkt.pts *= ist->ts_scale;
2400 if (pkt.dts != AV_NOPTS_VALUE)
2401 pkt.dts *= ist->ts_scale;
2403 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2404 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2405 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2406 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2407 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2408 int64_t delta = pkt_dts - ist->next_dts;
2410 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2411 ifile->ts_offset -= delta;
2412 av_log(NULL, AV_LOG_DEBUG,
2413 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2414 delta, ifile->ts_offset);
2415 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2416 if (pkt.pts != AV_NOPTS_VALUE)
2417 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2421 process_input_packet(ist, &pkt);
2424 av_free_packet(&pkt);
2430 * The following code is the main loop of the file converter
2432 static int transcode(void)
2434 int ret, i, need_input = 1;
2435 AVFormatContext *os;
2438 int64_t timer_start;
2440 ret = transcode_init();
2444 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2447 timer_start = av_gettime_relative();
2450 if ((ret = init_input_threads()) < 0)
2454 while (!received_sigterm) {
2455 /* check if there's any stream where output is still needed */
2456 if (!need_output()) {
2457 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2461 /* read and process one input packet if needed */
2463 ret = process_input();
2464 if (ret == AVERROR_EOF)
2468 ret = poll_filters();
2470 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN)) {
2474 av_strerror(ret, errbuf, sizeof(errbuf));
2476 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2481 /* dump report by using the output first video and audio streams */
2482 print_report(0, timer_start);
2485 free_input_threads();
2488 /* at the end of stream, we must flush the decoder buffers */
2489 for (i = 0; i < nb_input_streams; i++) {
2490 ist = input_streams[i];
2491 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2492 process_input_packet(ist, NULL);
2500 /* write the trailer if needed and close file */
2501 for (i = 0; i < nb_output_files; i++) {
2502 os = output_files[i]->ctx;
2503 av_write_trailer(os);
2506 /* dump report by using the first video and audio streams */
2507 print_report(1, timer_start);
2509 /* close each encoder */
2510 for (i = 0; i < nb_output_streams; i++) {
2511 ost = output_streams[i];
2512 if (ost->encoding_needed) {
2513 av_freep(&ost->enc_ctx->stats_in);
2517 /* close each decoder */
2518 for (i = 0; i < nb_input_streams; i++) {
2519 ist = input_streams[i];
2520 if (ist->decoding_needed) {
2521 avcodec_close(ist->dec_ctx);
2522 if (ist->hwaccel_uninit)
2523 ist->hwaccel_uninit(ist->dec_ctx);
2532 free_input_threads();
2535 if (output_streams) {
2536 for (i = 0; i < nb_output_streams; i++) {
2537 ost = output_streams[i];
2540 fclose(ost->logfile);
2541 ost->logfile = NULL;
2543 av_free(ost->forced_kf_pts);
2544 av_dict_free(&ost->encoder_opts);
2545 av_dict_free(&ost->resample_opts);
2552 static int64_t getutime(void)
2555 struct rusage rusage;
2557 getrusage(RUSAGE_SELF, &rusage);
2558 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2559 #elif HAVE_GETPROCESSTIMES
2561 FILETIME c, e, k, u;
2562 proc = GetCurrentProcess();
2563 GetProcessTimes(proc, &c, &e, &k, &u);
2564 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2566 return av_gettime_relative();
2570 static int64_t getmaxrss(void)
2572 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2573 struct rusage rusage;
2574 getrusage(RUSAGE_SELF, &rusage);
2575 return (int64_t)rusage.ru_maxrss * 1024;
2576 #elif HAVE_GETPROCESSMEMORYINFO
2578 PROCESS_MEMORY_COUNTERS memcounters;
2579 proc = GetCurrentProcess();
2580 memcounters.cb = sizeof(memcounters);
2581 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2582 return memcounters.PeakPagefileUsage;
2588 int main(int argc, char **argv)
2593 register_exit(avconv_cleanup);
2595 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2596 parse_loglevel(argc, argv, options);
2598 avcodec_register_all();
2600 avdevice_register_all();
2602 avfilter_register_all();
2604 avformat_network_init();
2608 /* parse options and open all input/output files */
2609 ret = avconv_parse_options(argc, argv);
2613 if (nb_output_files <= 0 && nb_input_files == 0) {
2615 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2619 /* file converter / grab */
2620 if (nb_output_files <= 0) {
2621 fprintf(stderr, "At least one output file must be specified\n");
2626 if (transcode() < 0)
2628 ti = getutime() - ti;
2630 int maxrss = getmaxrss() / 1024;
2631 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);