2 * Copyright (c) 2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * simple media player based on the FFmpeg libraries
30 #include "libavutil/avstring.h"
31 #include "libavutil/colorspace.h"
32 #include "libavutil/mathematics.h"
33 #include "libavutil/pixdesc.h"
34 #include "libavutil/imgutils.h"
35 #include "libavutil/dict.h"
36 #include "libavutil/parseutils.h"
37 #include "libavutil/samplefmt.h"
38 #include "libavutil/avassert.h"
39 #include "libavformat/avformat.h"
40 #include "libavdevice/avdevice.h"
41 #include "libswscale/swscale.h"
42 #include "libavcodec/audioconvert.h"
43 #include "libavutil/opt.h"
44 #include "libavcodec/avfft.h"
45 #include "libswresample/swresample.h"
48 # include "libavfilter/avcodec.h"
49 # include "libavfilter/avfilter.h"
50 # include "libavfilter/avfiltergraph.h"
51 # include "libavfilter/buffersink.h"
55 #include <SDL_thread.h>
62 const char program_name[] = "ffplay";
63 const int program_birth_year = 2003;
65 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
66 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
69 /* SDL audio buffer size, in samples. Should be small to have precise
70 A/V sync as SDL does not have hardware buffer fullness info. */
71 #define SDL_AUDIO_BUFFER_SIZE 1024
73 /* no AV sync correction is done if below the AV sync threshold */
74 #define AV_SYNC_THRESHOLD 0.01
75 /* no AV correction is done if too big error */
76 #define AV_NOSYNC_THRESHOLD 10.0
78 /* maximum audio speed change to get correct sync */
79 #define SAMPLE_CORRECTION_PERCENT_MAX 10
81 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
82 #define AUDIO_DIFF_AVG_NB 20
84 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
85 #define SAMPLE_ARRAY_SIZE (2 * 65536)
87 static int sws_flags = SWS_BICUBIC;
89 typedef struct PacketQueue {
90 AVPacketList *first_pkt, *last_pkt;
98 #define VIDEO_PICTURE_QUEUE_SIZE 2
99 #define SUBPICTURE_QUEUE_SIZE 4
101 typedef struct VideoPicture {
102 double pts; ///< presentation time stamp for this picture
103 double duration; ///< expected duration of the frame
104 int64_t pos; ///< byte position in file
107 int width, height; /* source height & width */
110 enum PixelFormat pix_fmt;
113 AVFilterBufferRef *picref;
117 typedef struct SubPicture {
118 double pts; /* presentation time stamp for this picture */
123 AV_SYNC_AUDIO_MASTER, /* default choice */
124 AV_SYNC_VIDEO_MASTER,
125 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
128 typedef struct VideoState {
129 SDL_Thread *read_tid;
130 SDL_Thread *video_tid;
131 SDL_Thread *refresh_tid;
132 AVInputFormat *iformat;
141 int read_pause_return;
147 double external_clock; /* external clock base */
148 int64_t external_clock_time;
151 double audio_diff_cum; /* used for AV difference average computation */
152 double audio_diff_avg_coef;
153 double audio_diff_threshold;
154 int audio_diff_avg_count;
157 int audio_hw_buf_size;
158 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
159 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
162 unsigned int audio_buf_size; /* in bytes */
163 int audio_buf_index; /* in bytes */
164 int audio_write_buf_size;
165 AVPacket audio_pkt_temp;
167 enum AVSampleFormat audio_src_fmt;
168 enum AVSampleFormat audio_tgt_fmt;
169 int audio_src_channels;
170 int audio_tgt_channels;
171 int64_t audio_src_channel_layout;
172 int64_t audio_tgt_channel_layout;
175 struct SwrContext *swr_ctx;
176 double audio_current_pts;
177 double audio_current_pts_drift;
178 int frame_drops_early;
179 int frame_drops_late;
183 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
185 int16_t sample_array[SAMPLE_ARRAY_SIZE];
186 int sample_array_index;
190 FFTSample *rdft_data;
193 SDL_Thread *subtitle_tid;
195 int subtitle_stream_changed;
196 AVStream *subtitle_st;
197 PacketQueue subtitleq;
198 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
199 int subpq_size, subpq_rindex, subpq_windex;
200 SDL_mutex *subpq_mutex;
201 SDL_cond *subpq_cond;
204 double frame_last_pts;
205 double frame_last_duration;
206 double frame_last_dropped_pts;
207 double frame_last_returned_time;
208 double frame_last_filter_delay;
209 int64_t frame_last_dropped_pos;
210 double video_clock; ///< pts of last decoded frame / predicted pts of next decoded frame
214 double video_current_pts; ///< current displayed pts (different from video_clock if frame fifos are used)
215 double video_current_pts_drift; ///< video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
216 int64_t video_current_pos; ///< current displayed file pos
217 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
218 int pictq_size, pictq_rindex, pictq_windex;
219 SDL_mutex *pictq_mutex;
220 SDL_cond *pictq_cond;
222 struct SwsContext *img_convert_ctx;
226 int width, height, xleft, ytop;
230 AVFilterContext *out_video_filter; ///< the last filter in the video chain
236 static int opt_help(const char *opt, const char *arg);
238 /* options specified by the user */
239 static AVInputFormat *file_iformat;
240 static const char *input_filename;
241 static const char *window_title;
242 static int fs_screen_width;
243 static int fs_screen_height;
244 static int screen_width = 0;
245 static int screen_height = 0;
246 static int audio_disable;
247 static int video_disable;
248 static int wanted_stream[AVMEDIA_TYPE_NB] = {
249 [AVMEDIA_TYPE_AUDIO] = -1,
250 [AVMEDIA_TYPE_VIDEO] = -1,
251 [AVMEDIA_TYPE_SUBTITLE] = -1,
253 static int seek_by_bytes = -1;
254 static int display_disable;
255 static int show_status = 1;
256 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
257 static int64_t start_time = AV_NOPTS_VALUE;
258 static int64_t duration = AV_NOPTS_VALUE;
259 static int workaround_bugs = 1;
261 static int genpts = 0;
262 static int lowres = 0;
263 static int idct = FF_IDCT_AUTO;
264 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
265 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
266 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
267 static int error_recognition = FF_ER_CAREFUL;
268 static int error_concealment = 3;
269 static int decoder_reorder_pts = -1;
271 static int exit_on_keydown;
272 static int exit_on_mousedown;
274 static int framedrop = -1;
275 static enum ShowMode show_mode = SHOW_MODE_NONE;
276 static const char *audio_codec_name;
277 static const char *subtitle_codec_name;
278 static const char *video_codec_name;
279 static int rdftspeed = 20;
281 static char *vfilters = NULL;
284 /* current context */
285 static int is_full_screen;
286 static int64_t audio_callback_time;
288 static AVPacket flush_pkt;
290 #define FF_ALLOC_EVENT (SDL_USEREVENT)
291 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
292 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
294 static SDL_Surface *screen;
296 void av_noreturn exit_program(int ret)
301 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
305 /* duplicate the packet */
306 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
309 pkt1 = av_malloc(sizeof(AVPacketList));
316 SDL_LockMutex(q->mutex);
322 q->last_pkt->next = pkt1;
325 q->size += pkt1->pkt.size + sizeof(*pkt1);
326 /* XXX: should duplicate packet data in DV case */
327 SDL_CondSignal(q->cond);
329 SDL_UnlockMutex(q->mutex);
333 /* packet queue handling */
334 static void packet_queue_init(PacketQueue *q)
336 memset(q, 0, sizeof(PacketQueue));
337 q->mutex = SDL_CreateMutex();
338 q->cond = SDL_CreateCond();
339 packet_queue_put(q, &flush_pkt);
342 static void packet_queue_flush(PacketQueue *q)
344 AVPacketList *pkt, *pkt1;
346 SDL_LockMutex(q->mutex);
347 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
349 av_free_packet(&pkt->pkt);
356 SDL_UnlockMutex(q->mutex);
359 static void packet_queue_end(PacketQueue *q)
361 packet_queue_flush(q);
362 SDL_DestroyMutex(q->mutex);
363 SDL_DestroyCond(q->cond);
366 static void packet_queue_abort(PacketQueue *q)
368 SDL_LockMutex(q->mutex);
370 q->abort_request = 1;
372 SDL_CondSignal(q->cond);
374 SDL_UnlockMutex(q->mutex);
377 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
378 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
383 SDL_LockMutex(q->mutex);
386 if (q->abort_request) {
393 q->first_pkt = pkt1->next;
397 q->size -= pkt1->pkt.size + sizeof(*pkt1);
406 SDL_CondWait(q->cond, q->mutex);
409 SDL_UnlockMutex(q->mutex);
413 static inline void fill_rectangle(SDL_Surface *screen,
414 int x, int y, int w, int h, int color)
421 SDL_FillRect(screen, &rect, color);
424 #define ALPHA_BLEND(a, oldp, newp, s)\
425 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
427 #define RGBA_IN(r, g, b, a, s)\
429 unsigned int v = ((const uint32_t *)(s))[0];\
430 a = (v >> 24) & 0xff;\
431 r = (v >> 16) & 0xff;\
432 g = (v >> 8) & 0xff;\
436 #define YUVA_IN(y, u, v, a, s, pal)\
438 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
439 a = (val >> 24) & 0xff;\
440 y = (val >> 16) & 0xff;\
441 u = (val >> 8) & 0xff;\
445 #define YUVA_OUT(d, y, u, v, a)\
447 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
453 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
455 int wrap, wrap3, width2, skip2;
456 int y, u, v, a, u1, v1, a1, w, h;
457 uint8_t *lum, *cb, *cr;
460 int dstx, dsty, dstw, dsth;
462 dstw = av_clip(rect->w, 0, imgw);
463 dsth = av_clip(rect->h, 0, imgh);
464 dstx = av_clip(rect->x, 0, imgw - dstw);
465 dsty = av_clip(rect->y, 0, imgh - dsth);
466 lum = dst->data[0] + dsty * dst->linesize[0];
467 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
468 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
470 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
472 wrap = dst->linesize[0];
473 wrap3 = rect->pict.linesize[0];
474 p = rect->pict.data[0];
475 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
483 YUVA_IN(y, u, v, a, p, pal);
484 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
485 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
486 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
492 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
493 YUVA_IN(y, u, v, a, p, pal);
497 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
499 YUVA_IN(y, u, v, a, p + BPP, pal);
503 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
504 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
505 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
512 YUVA_IN(y, u, v, a, p, pal);
513 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
514 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
515 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
519 p += wrap3 - dstw * BPP;
520 lum += wrap - dstw - dstx;
521 cb += dst->linesize[1] - width2 - skip2;
522 cr += dst->linesize[2] - width2 - skip2;
524 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
530 YUVA_IN(y, u, v, a, p, pal);
534 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
537 YUVA_IN(y, u, v, a, p, pal);
541 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
542 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
543 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
549 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
550 YUVA_IN(y, u, v, a, p, pal);
554 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
556 YUVA_IN(y, u, v, a, p + BPP, pal);
560 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
564 YUVA_IN(y, u, v, a, p, pal);
568 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
570 YUVA_IN(y, u, v, a, p + BPP, pal);
574 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
576 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
577 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
581 p += -wrap3 + 2 * BPP;
585 YUVA_IN(y, u, v, a, p, pal);
589 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
592 YUVA_IN(y, u, v, a, p, pal);
596 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
597 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
598 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
604 p += wrap3 + (wrap3 - dstw * BPP);
605 lum += wrap + (wrap - dstw - dstx);
606 cb += dst->linesize[1] - width2 - skip2;
607 cr += dst->linesize[2] - width2 - skip2;
609 /* handle odd height */
616 YUVA_IN(y, u, v, a, p, pal);
617 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
618 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
619 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
625 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
626 YUVA_IN(y, u, v, a, p, pal);
630 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
632 YUVA_IN(y, u, v, a, p + BPP, pal);
636 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
637 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
638 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
645 YUVA_IN(y, u, v, a, p, pal);
646 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
647 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
648 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
653 static void free_subpicture(SubPicture *sp)
655 avsubtitle_free(&sp->sub);
658 static void video_image_display(VideoState *is)
664 int width, height, x, y;
668 vp = &is->pictq[is->pictq_rindex];
671 if (vp->picref->video->sample_aspect_ratio.num == 0)
674 aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio);
677 /* XXX: use variable in the frame */
678 if (is->video_st->sample_aspect_ratio.num)
679 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
680 else if (is->video_st->codec->sample_aspect_ratio.num)
681 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
685 if (aspect_ratio <= 0.0)
687 aspect_ratio *= (float)vp->width / (float)vp->height;
689 if (is->subtitle_st) {
690 if (is->subpq_size > 0) {
691 sp = &is->subpq[is->subpq_rindex];
693 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
694 SDL_LockYUVOverlay (vp->bmp);
696 pict.data[0] = vp->bmp->pixels[0];
697 pict.data[1] = vp->bmp->pixels[2];
698 pict.data[2] = vp->bmp->pixels[1];
700 pict.linesize[0] = vp->bmp->pitches[0];
701 pict.linesize[1] = vp->bmp->pitches[2];
702 pict.linesize[2] = vp->bmp->pitches[1];
704 for (i = 0; i < sp->sub.num_rects; i++)
705 blend_subrect(&pict, sp->sub.rects[i],
706 vp->bmp->w, vp->bmp->h);
708 SDL_UnlockYUVOverlay (vp->bmp);
714 /* XXX: we suppose the screen has a 1.0 pixel ratio */
716 width = ((int)rint(height * aspect_ratio)) & ~1;
717 if (width > is->width) {
719 height = ((int)rint(width / aspect_ratio)) & ~1;
721 x = (is->width - width) / 2;
722 y = (is->height - height) / 2;
723 is->no_background = 0;
724 rect.x = is->xleft + x;
725 rect.y = is->ytop + y;
726 rect.w = FFMAX(width, 1);
727 rect.h = FFMAX(height, 1);
728 SDL_DisplayYUVOverlay(vp->bmp, &rect);
732 static inline int compute_mod(int a, int b)
734 return a < 0 ? a%b + b : a%b;
737 static void video_audio_display(VideoState *s)
739 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
740 int ch, channels, h, h2, bgcolor, fgcolor;
742 int rdft_bits, nb_freq;
744 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
746 nb_freq = 1 << (rdft_bits - 1);
748 /* compute display index : center on currently output samples */
749 channels = s->audio_tgt_channels;
750 nb_display_channels = channels;
752 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
754 delay = s->audio_write_buf_size;
757 /* to be more precise, we take into account the time spent since
758 the last buffer computation */
759 if (audio_callback_time) {
760 time_diff = av_gettime() - audio_callback_time;
761 delay -= (time_diff * s->audio_tgt_freq) / 1000000;
764 delay += 2 * data_used;
765 if (delay < data_used)
768 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
769 if (s->show_mode == SHOW_MODE_WAVES) {
771 for (i = 0; i < 1000; i += channels) {
772 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
773 int a = s->sample_array[idx];
774 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
775 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
776 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
778 if (h < score && (b ^ c) < 0) {
785 s->last_i_start = i_start;
787 i_start = s->last_i_start;
790 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
791 if (s->show_mode == SHOW_MODE_WAVES) {
792 fill_rectangle(screen,
793 s->xleft, s->ytop, s->width, s->height,
796 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
798 /* total height for one channel */
799 h = s->height / nb_display_channels;
800 /* graph height / 2 */
802 for (ch = 0; ch < nb_display_channels; ch++) {
804 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
805 for (x = 0; x < s->width; x++) {
806 y = (s->sample_array[i] * h2) >> 15;
813 fill_rectangle(screen,
814 s->xleft + x, ys, 1, y,
817 if (i >= SAMPLE_ARRAY_SIZE)
818 i -= SAMPLE_ARRAY_SIZE;
822 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
824 for (ch = 1; ch < nb_display_channels; ch++) {
825 y = s->ytop + ch * h;
826 fill_rectangle(screen,
827 s->xleft, y, s->width, 1,
830 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
832 nb_display_channels= FFMIN(nb_display_channels, 2);
833 if (rdft_bits != s->rdft_bits) {
834 av_rdft_end(s->rdft);
835 av_free(s->rdft_data);
836 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
837 s->rdft_bits = rdft_bits;
838 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
842 for (ch = 0; ch < nb_display_channels; ch++) {
843 data[ch] = s->rdft_data + 2 * nb_freq * ch;
845 for (x = 0; x < 2 * nb_freq; x++) {
846 double w = (x-nb_freq) * (1.0 / nb_freq);
847 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
849 if (i >= SAMPLE_ARRAY_SIZE)
850 i -= SAMPLE_ARRAY_SIZE;
852 av_rdft_calc(s->rdft, data[ch]);
854 // least efficient way to do this, we should of course directly access it but its more than fast enough
855 for (y = 0; y < s->height; y++) {
856 double w = 1 / sqrt(nb_freq);
857 int a = sqrt(w * sqrt(data[0][2 * y + 0] * data[0][2 * y + 0] + data[0][2 * y + 1] * data[0][2 * y + 1]));
858 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
859 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
862 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
864 fill_rectangle(screen,
865 s->xpos, s->height-y, 1, 1,
869 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
871 if (s->xpos >= s->width)
876 static void stream_close(VideoState *is)
880 /* XXX: use a special url_shutdown call to abort parse cleanly */
881 is->abort_request = 1;
882 SDL_WaitThread(is->read_tid, NULL);
883 SDL_WaitThread(is->refresh_tid, NULL);
885 /* free all pictures */
886 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
890 avfilter_unref_buffer(vp->picref);
895 SDL_FreeYUVOverlay(vp->bmp);
899 SDL_DestroyMutex(is->pictq_mutex);
900 SDL_DestroyCond(is->pictq_cond);
901 SDL_DestroyMutex(is->subpq_mutex);
902 SDL_DestroyCond(is->subpq_cond);
904 if (is->img_convert_ctx)
905 sws_freeContext(is->img_convert_ctx);
910 static void do_exit(VideoState *is)
915 av_lockmgr_register(NULL);
920 avformat_network_deinit();
924 av_log(NULL, AV_LOG_QUIET, "%s", "");
928 static int video_open(VideoState *is, int force_set_video_mode)
930 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
933 if (is_full_screen) flags |= SDL_FULLSCREEN;
934 else flags |= SDL_RESIZABLE;
936 if (is_full_screen && fs_screen_width) {
938 h = fs_screen_height;
939 } else if (!is_full_screen && screen_width) {
943 } else if (is->out_video_filter && is->out_video_filter->inputs[0]) {
944 w = is->out_video_filter->inputs[0]->w;
945 h = is->out_video_filter->inputs[0]->h;
947 } else if (is->video_st && is->video_st->codec->width) {
948 w = is->video_st->codec->width;
949 h = is->video_st->codec->height;
955 if (screen && is->width == screen->w && screen->w == w
956 && is->height== screen->h && screen->h == h && !force_set_video_mode)
958 screen = SDL_SetVideoMode(w, h, 0, flags);
960 fprintf(stderr, "SDL: could not set video mode - exiting\n");
964 window_title = input_filename;
965 SDL_WM_SetCaption(window_title, window_title);
967 is->width = screen->w;
968 is->height = screen->h;
973 /* display the current picture, if any */
974 static void video_display(VideoState *is)
978 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
979 video_audio_display(is);
980 else if (is->video_st)
981 video_image_display(is);
984 static int refresh_thread(void *opaque)
986 VideoState *is= opaque;
987 while (!is->abort_request) {
989 event.type = FF_REFRESH_EVENT;
990 event.user.data1 = opaque;
993 SDL_PushEvent(&event);
995 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
996 usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
1001 /* get the current audio clock value */
1002 static double get_audio_clock(VideoState *is)
1005 return is->audio_current_pts;
1007 return is->audio_current_pts_drift + av_gettime() / 1000000.0;
1011 /* get the current video clock value */
1012 static double get_video_clock(VideoState *is)
1015 return is->video_current_pts;
1017 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1021 /* get the current external clock value */
1022 static double get_external_clock(VideoState *is)
1026 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1029 /* get the current master clock value */
1030 static double get_master_clock(VideoState *is)
1034 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1036 val = get_video_clock(is);
1038 val = get_audio_clock(is);
1039 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1041 val = get_audio_clock(is);
1043 val = get_video_clock(is);
1045 val = get_external_clock(is);
1050 /* seek in the stream */
1051 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1053 if (!is->seek_req) {
1056 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1058 is->seek_flags |= AVSEEK_FLAG_BYTE;
1063 /* pause or resume the video */
1064 static void stream_toggle_pause(VideoState *is)
1067 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1068 if (is->read_pause_return != AVERROR(ENOSYS)) {
1069 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1071 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1073 is->paused = !is->paused;
1076 static double compute_target_delay(double delay, VideoState *is)
1078 double sync_threshold, diff;
1080 /* update delay to follow master synchronisation source */
1081 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1082 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1083 /* if video is slave, we try to correct big delays by
1084 duplicating or deleting a frame */
1085 diff = get_video_clock(is) - get_master_clock(is);
1087 /* skip or repeat frame. We take into account the
1088 delay to compute the threshold. I still don't know
1089 if it is the best guess */
1090 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1091 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1092 if (diff <= -sync_threshold)
1094 else if (diff >= sync_threshold)
1099 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1105 static void pictq_next_picture(VideoState *is) {
1106 /* update queue size and signal for next picture */
1107 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1108 is->pictq_rindex = 0;
1110 SDL_LockMutex(is->pictq_mutex);
1112 SDL_CondSignal(is->pictq_cond);
1113 SDL_UnlockMutex(is->pictq_mutex);
1116 static void update_video_pts(VideoState *is, double pts, int64_t pos) {
1117 double time = av_gettime() / 1000000.0;
1118 /* update current video pts */
1119 is->video_current_pts = pts;
1120 is->video_current_pts_drift = is->video_current_pts - time;
1121 is->video_current_pos = pos;
1122 is->frame_last_pts = pts;
1125 /* called to display each frame */
1126 static void video_refresh(void *opaque)
1128 VideoState *is = opaque;
1132 SubPicture *sp, *sp2;
1136 if (is->pictq_size == 0) {
1137 SDL_LockMutex(is->pictq_mutex);
1138 if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
1139 update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos);
1140 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1142 SDL_UnlockMutex(is->pictq_mutex);
1143 // nothing to do, no picture to display in the que
1145 double last_duration, duration, delay;
1146 /* dequeue the picture */
1147 vp = &is->pictq[is->pictq_rindex];
1150 pictq_next_picture(is);
1154 /* compute nominal last_duration */
1155 last_duration = vp->pts - is->frame_last_pts;
1156 if (last_duration > 0 && last_duration < 10.0) {
1157 /* if duration of the last frame was sane, update last_duration in video state */
1158 is->frame_last_duration = last_duration;
1160 delay = compute_target_delay(is->frame_last_duration, is);
1162 time= av_gettime()/1000000.0;
1163 if (time < is->frame_timer + delay)
1167 is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
1169 SDL_LockMutex(is->pictq_mutex);
1170 update_video_pts(is, vp->pts, vp->pos);
1171 SDL_UnlockMutex(is->pictq_mutex);
1173 if (is->pictq_size > 1) {
1174 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1175 duration = nextvp->pts - vp->pts; // More accurate this way, 1/time_base is often not reflecting FPS
1177 duration = vp->duration;
1180 if((framedrop>0 || (framedrop && is->audio_st)) && time > is->frame_timer + duration){
1181 if(is->pictq_size > 1){
1182 is->frame_drops_late++;
1183 pictq_next_picture(is);
1188 if (is->subtitle_st) {
1189 if (is->subtitle_stream_changed) {
1190 SDL_LockMutex(is->subpq_mutex);
1192 while (is->subpq_size) {
1193 free_subpicture(&is->subpq[is->subpq_rindex]);
1195 /* update queue size and signal for next picture */
1196 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1197 is->subpq_rindex = 0;
1201 is->subtitle_stream_changed = 0;
1203 SDL_CondSignal(is->subpq_cond);
1204 SDL_UnlockMutex(is->subpq_mutex);
1206 if (is->subpq_size > 0) {
1207 sp = &is->subpq[is->subpq_rindex];
1209 if (is->subpq_size > 1)
1210 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1214 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1215 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1217 free_subpicture(sp);
1219 /* update queue size and signal for next picture */
1220 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1221 is->subpq_rindex = 0;
1223 SDL_LockMutex(is->subpq_mutex);
1225 SDL_CondSignal(is->subpq_cond);
1226 SDL_UnlockMutex(is->subpq_mutex);
1232 /* display picture */
1233 if (!display_disable)
1236 pictq_next_picture(is);
1238 } else if (is->audio_st) {
1239 /* draw the next audio frame */
1241 /* if only audio stream, then display the audio bars (better
1242 than nothing, just to test the implementation */
1244 /* display picture */
1245 if (!display_disable)
1249 static int64_t last_time;
1251 int aqsize, vqsize, sqsize;
1254 cur_time = av_gettime();
1255 if (!last_time || (cur_time - last_time) >= 30000) {
1260 aqsize = is->audioq.size;
1262 vqsize = is->videoq.size;
1263 if (is->subtitle_st)
1264 sqsize = is->subtitleq.size;
1266 if (is->audio_st && is->video_st)
1267 av_diff = get_audio_clock(is) - get_video_clock(is);
1268 printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1269 get_master_clock(is),
1271 is->frame_drops_early + is->frame_drops_late,
1275 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1276 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1278 last_time = cur_time;
1283 /* allocate a picture (needs to do that in main thread to avoid
1284 potential locking problems */
1285 static void alloc_picture(void *opaque)
1287 VideoState *is = opaque;
1290 vp = &is->pictq[is->pictq_windex];
1293 SDL_FreeYUVOverlay(vp->bmp);
1297 avfilter_unref_buffer(vp->picref);
1300 vp->width = is->out_video_filter->inputs[0]->w;
1301 vp->height = is->out_video_filter->inputs[0]->h;
1302 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1304 vp->width = is->video_st->codec->width;
1305 vp->height = is->video_st->codec->height;
1306 vp->pix_fmt = is->video_st->codec->pix_fmt;
1309 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1312 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1313 /* SDL allocates a buffer smaller than requested if the video
1314 * overlay hardware is unable to support the requested size. */
1315 fprintf(stderr, "Error: the video system does not support an image\n"
1316 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1317 "to reduce the image size.\n", vp->width, vp->height );
1321 SDL_LockMutex(is->pictq_mutex);
1323 SDL_CondSignal(is->pictq_cond);
1324 SDL_UnlockMutex(is->pictq_mutex);
1327 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1330 double frame_delay, pts = pts1;
1332 /* compute the exact PTS for the picture if it is omitted in the stream
1333 * pts1 is the dts of the pkt / pts of the frame */
1335 /* update video clock with pts, if present */
1336 is->video_clock = pts;
1338 pts = is->video_clock;
1340 /* update video clock for next frame */
1341 frame_delay = av_q2d(is->video_st->codec->time_base);
1342 /* for MPEG2, the frame can be repeated, so we update the
1343 clock accordingly */
1344 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1345 is->video_clock += frame_delay;
1347 #if defined(DEBUG_SYNC) && 0
1348 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1349 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1352 /* wait until we have space to put a new picture */
1353 SDL_LockMutex(is->pictq_mutex);
1355 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1356 !is->videoq.abort_request) {
1357 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1359 SDL_UnlockMutex(is->pictq_mutex);
1361 if (is->videoq.abort_request)
1364 vp = &is->pictq[is->pictq_windex];
1366 vp->duration = frame_delay;
1368 /* alloc or resize hardware picture buffer */
1369 if (!vp->bmp || vp->reallocate ||
1371 vp->width != is->out_video_filter->inputs[0]->w ||
1372 vp->height != is->out_video_filter->inputs[0]->h) {
1374 vp->width != is->video_st->codec->width ||
1375 vp->height != is->video_st->codec->height) {
1382 /* the allocation must be done in the main thread to avoid
1384 event.type = FF_ALLOC_EVENT;
1385 event.user.data1 = is;
1386 SDL_PushEvent(&event);
1388 /* wait until the picture is allocated */
1389 SDL_LockMutex(is->pictq_mutex);
1390 while (!vp->allocated && !is->videoq.abort_request) {
1391 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1393 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1394 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1395 while (!vp->allocated) {
1396 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1399 SDL_UnlockMutex(is->pictq_mutex);
1401 if (is->videoq.abort_request)
1405 /* if the frame is not skipped, then display it */
1410 avfilter_unref_buffer(vp->picref);
1411 vp->picref = src_frame->opaque;
1414 /* get a pointer on the bitmap */
1415 SDL_LockYUVOverlay (vp->bmp);
1417 memset(&pict, 0, sizeof(AVPicture));
1418 pict.data[0] = vp->bmp->pixels[0];
1419 pict.data[1] = vp->bmp->pixels[2];
1420 pict.data[2] = vp->bmp->pixels[1];
1422 pict.linesize[0] = vp->bmp->pitches[0];
1423 pict.linesize[1] = vp->bmp->pitches[2];
1424 pict.linesize[2] = vp->bmp->pitches[1];
1427 // FIXME use direct rendering
1428 av_picture_copy(&pict, (AVPicture *)src_frame,
1429 vp->pix_fmt, vp->width, vp->height);
1431 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1432 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1433 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1434 PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1435 if (is->img_convert_ctx == NULL) {
1436 fprintf(stderr, "Cannot initialize the conversion context\n");
1439 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1440 0, vp->height, pict.data, pict.linesize);
1442 /* update the bitmap content */
1443 SDL_UnlockYUVOverlay(vp->bmp);
1449 /* now we can update the picture count */
1450 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1451 is->pictq_windex = 0;
1452 SDL_LockMutex(is->pictq_mutex);
1454 SDL_UnlockMutex(is->pictq_mutex);
1459 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1463 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1466 if (pkt->data == flush_pkt.data) {
1467 avcodec_flush_buffers(is->video_st->codec);
1469 SDL_LockMutex(is->pictq_mutex);
1470 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1471 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1472 is->pictq[i].skip = 1;
1474 while (is->pictq_size && !is->videoq.abort_request) {
1475 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1477 is->video_current_pos = -1;
1478 is->frame_last_pts = AV_NOPTS_VALUE;
1479 is->frame_last_duration = 0;
1480 is->frame_timer = (double)av_gettime() / 1000000.0;
1481 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1482 SDL_UnlockMutex(is->pictq_mutex);
1487 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1492 if (decoder_reorder_pts == -1) {
1493 *pts = *(int64_t*)av_opt_ptr(avcodec_get_frame_class(), frame, "best_effort_timestamp");
1494 } else if (decoder_reorder_pts) {
1495 *pts = frame->pkt_pts;
1497 *pts = frame->pkt_dts;
1500 if (*pts == AV_NOPTS_VALUE) {
1504 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK) &&
1505 (framedrop>0 || (framedrop && is->audio_st))) {
1506 SDL_LockMutex(is->pictq_mutex);
1507 if (is->frame_last_pts != AV_NOPTS_VALUE && *pts) {
1508 double clockdiff = get_video_clock(is) - get_master_clock(is);
1509 double dpts = av_q2d(is->video_st->time_base) * *pts;
1510 double ptsdiff = dpts - is->frame_last_pts;
1511 if (fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
1512 ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
1513 clockdiff + ptsdiff - is->frame_last_filter_delay < 0) {
1514 is->frame_last_dropped_pos = pkt->pos;
1515 is->frame_last_dropped_pts = dpts;
1516 is->frame_drops_early++;
1520 SDL_UnlockMutex(is->pictq_mutex);
1524 is->frame_last_returned_time = av_gettime() / 1000000.0;
1538 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1540 AVFilterContext *ctx = codec->opaque;
1541 AVFilterBufferRef *ref;
1542 int perms = AV_PERM_WRITE;
1543 int i, w, h, stride[4];
1547 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1549 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1550 perms |= AV_PERM_NEG_LINESIZES;
1552 if (pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1553 if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1554 if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1555 if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1557 if (pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1562 if(av_image_check_size(w, h, 0, codec))
1565 avcodec_align_dimensions2(codec, &w, &h, stride);
1566 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1569 if (codec->pix_fmt != ctx->outputs[0]->format) {
1570 av_log(codec, AV_LOG_ERROR, "Pixel format mismatches %d %d\n", codec->pix_fmt, ctx->outputs[0]->format);
1573 if (!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1576 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1 + 1;
1577 ref->video->w = codec->width;
1578 ref->video->h = codec->height;
1579 for (i = 0; i < 4; i ++) {
1580 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1581 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1584 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1586 pic->data[i] = ref->data[i];
1587 pic->linesize[i] = ref->linesize[i];
1590 pic->type = FF_BUFFER_TYPE_USER;
1591 pic->reordered_opaque = codec->reordered_opaque;
1592 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1593 else pic->pkt_pts = AV_NOPTS_VALUE;
1597 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1599 memset(pic->data, 0, sizeof(pic->data));
1600 avfilter_unref_buffer(pic->opaque);
1603 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1605 AVFilterBufferRef *ref = pic->opaque;
1607 if (pic->data[0] == NULL) {
1608 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1609 return codec->get_buffer(codec, pic);
1612 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1613 (codec->pix_fmt != ref->format)) {
1614 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1618 pic->reordered_opaque = codec->reordered_opaque;
1619 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1620 else pic->pkt_pts = AV_NOPTS_VALUE;
1624 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1626 FilterPriv *priv = ctx->priv;
1627 AVCodecContext *codec;
1628 if (!opaque) return -1;
1631 codec = priv->is->video_st->codec;
1632 codec->opaque = ctx;
1633 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1634 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1636 codec->get_buffer = input_get_buffer;
1637 codec->release_buffer = input_release_buffer;
1638 codec->reget_buffer = input_reget_buffer;
1639 codec->thread_safe_callbacks = 1;
1642 priv->frame = avcodec_alloc_frame();
1647 static void input_uninit(AVFilterContext *ctx)
1649 FilterPriv *priv = ctx->priv;
1650 av_free(priv->frame);
1653 static int input_request_frame(AVFilterLink *link)
1655 FilterPriv *priv = link->src->priv;
1656 AVFilterBufferRef *picref;
1661 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1662 av_free_packet(&pkt);
1666 if (priv->use_dr1 && priv->frame->opaque) {
1667 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1669 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1670 av_image_copy(picref->data, picref->linesize,
1671 priv->frame->data, priv->frame->linesize,
1672 picref->format, link->w, link->h);
1674 av_free_packet(&pkt);
1676 avfilter_copy_frame_props(picref, priv->frame);
1679 avfilter_start_frame(link, picref);
1680 avfilter_draw_slice(link, 0, link->h, 1);
1681 avfilter_end_frame(link);
1686 static int input_query_formats(AVFilterContext *ctx)
1688 FilterPriv *priv = ctx->priv;
1689 enum PixelFormat pix_fmts[] = {
1690 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1693 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
1697 static int input_config_props(AVFilterLink *link)
1699 FilterPriv *priv = link->src->priv;
1700 AVStream *s = priv->is->video_st;
1702 link->w = s->codec->width;
1703 link->h = s->codec->height;
1704 link->sample_aspect_ratio = s->sample_aspect_ratio.num ?
1705 s->sample_aspect_ratio : s->codec->sample_aspect_ratio;
1706 link->time_base = s->time_base;
1711 static AVFilter input_filter =
1713 .name = "ffplay_input",
1715 .priv_size = sizeof(FilterPriv),
1718 .uninit = input_uninit,
1720 .query_formats = input_query_formats,
1722 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1723 .outputs = (AVFilterPad[]) {{ .name = "default",
1724 .type = AVMEDIA_TYPE_VIDEO,
1725 .request_frame = input_request_frame,
1726 .config_props = input_config_props, },
1730 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1732 char sws_flags_str[128];
1734 enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1735 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
1736 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1737 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1738 graph->scale_sws_opts = av_strdup(sws_flags_str);
1740 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1741 NULL, is, graph)) < 0)
1743 #if FF_API_OLD_VSINK_API
1744 ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
1745 NULL, pix_fmts, graph);
1747 buffersink_params->pixel_fmts = pix_fmts;
1748 ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
1749 NULL, buffersink_params, graph);
1751 av_freep(&buffersink_params);
1756 AVFilterInOut *outputs = avfilter_inout_alloc();
1757 AVFilterInOut *inputs = avfilter_inout_alloc();
1759 outputs->name = av_strdup("in");
1760 outputs->filter_ctx = filt_src;
1761 outputs->pad_idx = 0;
1762 outputs->next = NULL;
1764 inputs->name = av_strdup("out");
1765 inputs->filter_ctx = filt_out;
1766 inputs->pad_idx = 0;
1767 inputs->next = NULL;
1769 if ((ret = avfilter_graph_parse(graph, vfilters, &inputs, &outputs, NULL)) < 0)
1772 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1776 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1779 is->out_video_filter = filt_out;
1784 #endif /* CONFIG_AVFILTER */
1786 static int video_thread(void *arg)
1788 VideoState *is = arg;
1789 AVFrame *frame = avcodec_alloc_frame();
1790 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1795 AVFilterGraph *graph = avfilter_graph_alloc();
1796 AVFilterContext *filt_out = NULL;
1797 int last_w = is->video_st->codec->width;
1798 int last_h = is->video_st->codec->height;
1800 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1802 filt_out = is->out_video_filter;
1806 #if !CONFIG_AVFILTER
1809 AVFilterBufferRef *picref;
1810 AVRational tb = filt_out->inputs[0]->time_base;
1812 while (is->paused && !is->videoq.abort_request)
1815 if ( last_w != is->video_st->codec->width
1816 || last_h != is->video_st->codec->height) {
1817 av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
1818 last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
1819 avfilter_graph_free(&graph);
1820 graph = avfilter_graph_alloc();
1821 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1823 filt_out = is->out_video_filter;
1824 last_w = is->video_st->codec->width;
1825 last_h = is->video_st->codec->height;
1827 ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
1829 avfilter_fill_frame_from_video_buffer_ref(frame, picref);
1830 pts_int = picref->pts;
1832 frame->opaque = picref;
1835 if (av_cmp_q(tb, is->video_st->time_base)) {
1836 av_unused int64_t pts1 = pts_int;
1837 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1838 av_dlog(NULL, "video_thread(): "
1839 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1840 tb.num, tb.den, pts1,
1841 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1844 ret = get_video_frame(is, frame, &pts_int, &pkt);
1846 av_free_packet(&pkt);
1852 is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
1853 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
1854 is->frame_last_filter_delay = 0;
1861 pts = pts_int * av_q2d(is->video_st->time_base);
1863 ret = queue_picture(is, frame, pts, pos);
1869 stream_toggle_pause(is);
1873 avfilter_graph_free(&graph);
1879 static int subtitle_thread(void *arg)
1881 VideoState *is = arg;
1883 AVPacket pkt1, *pkt = &pkt1;
1887 int r, g, b, y, u, v, a;
1890 while (is->paused && !is->subtitleq.abort_request) {
1893 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1896 if (pkt->data == flush_pkt.data) {
1897 avcodec_flush_buffers(is->subtitle_st->codec);
1900 SDL_LockMutex(is->subpq_mutex);
1901 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1902 !is->subtitleq.abort_request) {
1903 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1905 SDL_UnlockMutex(is->subpq_mutex);
1907 if (is->subtitleq.abort_request)
1910 sp = &is->subpq[is->subpq_windex];
1912 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1913 this packet, if any */
1915 if (pkt->pts != AV_NOPTS_VALUE)
1916 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1918 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1919 &got_subtitle, pkt);
1921 if (got_subtitle && sp->sub.format == 0) {
1924 for (i = 0; i < sp->sub.num_rects; i++)
1926 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1928 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1929 y = RGB_TO_Y_CCIR(r, g, b);
1930 u = RGB_TO_U_CCIR(r, g, b, 0);
1931 v = RGB_TO_V_CCIR(r, g, b, 0);
1932 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1936 /* now we can update the picture count */
1937 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1938 is->subpq_windex = 0;
1939 SDL_LockMutex(is->subpq_mutex);
1941 SDL_UnlockMutex(is->subpq_mutex);
1943 av_free_packet(pkt);
1948 /* copy samples for viewing in editor window */
1949 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1953 size = samples_size / sizeof(short);
1955 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1958 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1960 is->sample_array_index += len;
1961 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1962 is->sample_array_index = 0;
1967 /* return the new audio buffer size (samples can be added or deleted
1968 to get better sync if video or external master clock) */
1969 static int synchronize_audio(VideoState *is, short *samples,
1970 int samples_size1, double pts)
1972 int n, samples_size;
1975 n = av_get_bytes_per_sample(is->audio_tgt_fmt) * is->audio_tgt_channels;
1976 samples_size = samples_size1;
1978 /* if not master, then we try to remove or add samples to correct the clock */
1979 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1980 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1981 double diff, avg_diff;
1982 int wanted_size, min_size, max_size, nb_samples;
1984 ref_clock = get_master_clock(is);
1985 diff = get_audio_clock(is) - ref_clock;
1987 if (diff < AV_NOSYNC_THRESHOLD) {
1988 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1989 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1990 /* not enough measures to have a correct estimate */
1991 is->audio_diff_avg_count++;
1993 /* estimate the A-V difference */
1994 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1996 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1997 wanted_size = samples_size + ((int)(diff * is->audio_tgt_freq) * n);
1998 nb_samples = samples_size / n;
2000 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2001 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2002 if (wanted_size < min_size)
2003 wanted_size = min_size;
2004 else if (wanted_size > FFMIN3(max_size, samples_size, sizeof(is->audio_buf2)))
2005 wanted_size = FFMIN3(max_size, samples_size, sizeof(is->audio_buf2));
2007 /* add or remove samples to correction the synchro */
2008 if (wanted_size < samples_size) {
2009 /* remove samples */
2010 samples_size = wanted_size;
2011 } else if (wanted_size > samples_size) {
2012 uint8_t *samples_end, *q;
2016 nb = (samples_size - wanted_size);
2017 samples_end = (uint8_t *)samples + samples_size - n;
2018 q = samples_end + n;
2020 memcpy(q, samples_end, n);
2024 samples_size = wanted_size;
2027 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2028 diff, avg_diff, samples_size - samples_size1,
2029 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2032 /* too big difference : may be initial PTS errors, so
2034 is->audio_diff_avg_count = 0;
2035 is->audio_diff_cum = 0;
2039 return samples_size;
2042 /* decode one audio frame and returns its uncompressed size */
2043 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2045 AVPacket *pkt_temp = &is->audio_pkt_temp;
2046 AVPacket *pkt = &is->audio_pkt;
2047 AVCodecContext *dec = is->audio_st->codec;
2048 int len1, len2, data_size, resampled_data_size;
2049 int64_t dec_channel_layout;
2053 int flush_complete = 0;
2056 /* NOTE: the audio packet can contain several frames */
2057 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
2059 if (!(is->frame = avcodec_alloc_frame()))
2060 return AVERROR(ENOMEM);
2062 avcodec_get_frame_defaults(is->frame);
2067 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2069 /* if error, we skip the frame */
2074 pkt_temp->data += len1;
2075 pkt_temp->size -= len1;
2078 /* stop sending empty packets if the decoder is finished */
2079 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2083 data_size = av_samples_get_buffer_size(NULL, dec->channels,
2084 is->frame->nb_samples,
2085 dec->sample_fmt, 1);
2087 dec_channel_layout = (dec->channel_layout && dec->channels == av_get_channel_layout_nb_channels(dec->channel_layout)) ? dec->channel_layout : av_get_default_channel_layout(dec->channels);
2089 if (dec->sample_fmt != is->audio_src_fmt || dec_channel_layout != is->audio_src_channel_layout || dec->sample_rate != is->audio_src_freq) {
2091 swr_free(&is->swr_ctx);
2092 is->swr_ctx = swr_alloc_set_opts(NULL,
2093 is->audio_tgt_channel_layout, is->audio_tgt_fmt, is->audio_tgt_freq,
2094 dec_channel_layout, dec->sample_fmt, dec->sample_rate,
2096 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
2097 fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
2099 av_get_sample_fmt_name(dec->sample_fmt),
2102 av_get_sample_fmt_name(is->audio_tgt_fmt),
2103 is->audio_tgt_channels);
2106 is->audio_src_channel_layout = dec_channel_layout;
2107 is->audio_src_channels = dec->channels;
2108 is->audio_src_freq = dec->sample_rate;
2109 is->audio_src_fmt = dec->sample_fmt;
2112 resampled_data_size = data_size;
2114 const uint8_t *in[] = { is->frame->data[0] };
2115 uint8_t *out[] = {is->audio_buf2};
2116 len2 = swr_convert(is->swr_ctx, out, sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt),
2117 in, data_size / dec->channels / av_get_bytes_per_sample(dec->sample_fmt));
2119 fprintf(stderr, "audio_resample() failed\n");
2122 if (len2 == sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt)) {
2123 fprintf(stderr, "warning: audio buffer is probably too small\n");
2124 swr_init(is->swr_ctx);
2126 is->audio_buf = is->audio_buf2;
2127 resampled_data_size = len2 * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
2129 is->audio_buf = is->frame->data[0];
2132 /* if no pts, then compute it */
2133 pts = is->audio_clock;
2135 is->audio_clock += (double)data_size / (dec->channels * dec->sample_rate * av_get_bytes_per_sample(dec->sample_fmt));
2138 static double last_clock;
2139 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2140 is->audio_clock - last_clock,
2141 is->audio_clock, pts);
2142 last_clock = is->audio_clock;
2145 return resampled_data_size;
2148 /* free the current packet */
2150 av_free_packet(pkt);
2151 memset(pkt_temp, 0, sizeof(*pkt_temp));
2153 if (is->paused || is->audioq.abort_request) {
2157 /* read next packet */
2158 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2161 if (pkt->data == flush_pkt.data)
2162 avcodec_flush_buffers(dec);
2166 /* if update the audio clock with the pts */
2167 if (pkt->pts != AV_NOPTS_VALUE) {
2168 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2173 /* prepare a new audio buffer */
2174 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2176 VideoState *is = opaque;
2177 int audio_size, len1;
2181 audio_callback_time = av_gettime();
2184 if (is->audio_buf_index >= is->audio_buf_size) {
2185 audio_size = audio_decode_frame(is, &pts);
2186 if (audio_size < 0) {
2187 /* if error, just output silence */
2188 is->audio_buf = is->silence_buf;
2189 is->audio_buf_size = sizeof(is->silence_buf);
2191 if (is->show_mode != SHOW_MODE_VIDEO)
2192 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2193 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2195 is->audio_buf_size = audio_size;
2197 is->audio_buf_index = 0;
2199 len1 = is->audio_buf_size - is->audio_buf_index;
2202 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2205 is->audio_buf_index += len1;
2207 bytes_per_sec = is->audio_tgt_freq * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
2208 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2209 /* Let's assume the audio driver that is used by SDL has two periods. */
2210 is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
2211 is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
2214 /* open a given stream. Return 0 if OK */
2215 static int stream_component_open(VideoState *is, int stream_index)
2217 AVFormatContext *ic = is->ic;
2218 AVCodecContext *avctx;
2220 SDL_AudioSpec wanted_spec, spec;
2222 AVDictionaryEntry *t = NULL;
2223 int64_t wanted_channel_layout = 0;
2225 if (stream_index < 0 || stream_index >= ic->nb_streams)
2227 avctx = ic->streams[stream_index]->codec;
2229 codec = avcodec_find_decoder(avctx->codec_id);
2230 opts = filter_codec_opts(codec_opts, codec, ic, ic->streams[stream_index]);
2232 switch(avctx->codec_type){
2233 case AVMEDIA_TYPE_AUDIO : if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
2234 case AVMEDIA_TYPE_SUBTITLE: if(subtitle_codec_name) codec= avcodec_find_decoder_by_name(subtitle_codec_name); break;
2235 case AVMEDIA_TYPE_VIDEO : if(video_codec_name ) codec= avcodec_find_decoder_by_name( video_codec_name); break;
2240 avctx->workaround_bugs = workaround_bugs;
2241 avctx->lowres = lowres;
2242 if(avctx->lowres > codec->max_lowres){
2243 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2245 avctx->lowres= codec->max_lowres;
2247 avctx->idct_algo = idct;
2248 avctx->skip_frame = skip_frame;
2249 avctx->skip_idct = skip_idct;
2250 avctx->skip_loop_filter = skip_loop_filter;
2251 avctx->error_recognition = error_recognition;
2252 avctx->error_concealment = error_concealment;
2254 if(avctx->lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2255 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2256 if(codec->capabilities & CODEC_CAP_DR1)
2257 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2259 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2260 wanted_channel_layout = (avctx->channel_layout && avctx->channels == av_get_channel_layout_nb_channels(avctx->channels)) ? avctx->channel_layout : av_get_default_channel_layout(avctx->channels);
2261 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2262 wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2263 wanted_spec.freq = avctx->sample_rate;
2264 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2265 fprintf(stderr, "Invalid sample rate or channel count!\n");
2271 avcodec_open2(avctx, codec, &opts) < 0)
2273 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2274 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2275 return AVERROR_OPTION_NOT_FOUND;
2278 /* prepare audio output */
2279 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2280 wanted_spec.format = AUDIO_S16SYS;
2281 wanted_spec.silence = 0;
2282 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2283 wanted_spec.callback = sdl_audio_callback;
2284 wanted_spec.userdata = is;
2285 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2286 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2289 is->audio_hw_buf_size = spec.size;
2290 if (spec.format != AUDIO_S16SYS) {
2291 fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format);
2294 if (spec.channels != wanted_spec.channels) {
2295 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2296 if (!wanted_channel_layout) {
2297 fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels);
2301 is->audio_src_fmt = is->audio_tgt_fmt = AV_SAMPLE_FMT_S16;
2302 is->audio_src_freq = is->audio_tgt_freq = spec.freq;
2303 is->audio_src_channel_layout = is->audio_tgt_channel_layout = wanted_channel_layout;
2304 is->audio_src_channels = is->audio_tgt_channels = spec.channels;
2307 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2308 switch (avctx->codec_type) {
2309 case AVMEDIA_TYPE_AUDIO:
2310 is->audio_stream = stream_index;
2311 is->audio_st = ic->streams[stream_index];
2312 is->audio_buf_size = 0;
2313 is->audio_buf_index = 0;
2315 /* init averaging filter */
2316 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2317 is->audio_diff_avg_count = 0;
2318 /* since we do not have a precise anough audio fifo fullness,
2319 we correct audio sync only if larger than this threshold */
2320 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / wanted_spec.freq;
2322 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2323 packet_queue_init(&is->audioq);
2326 case AVMEDIA_TYPE_VIDEO:
2327 is->video_stream = stream_index;
2328 is->video_st = ic->streams[stream_index];
2330 packet_queue_init(&is->videoq);
2331 is->video_tid = SDL_CreateThread(video_thread, is);
2333 case AVMEDIA_TYPE_SUBTITLE:
2334 is->subtitle_stream = stream_index;
2335 is->subtitle_st = ic->streams[stream_index];
2336 packet_queue_init(&is->subtitleq);
2338 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2346 static void stream_component_close(VideoState *is, int stream_index)
2348 AVFormatContext *ic = is->ic;
2349 AVCodecContext *avctx;
2351 if (stream_index < 0 || stream_index >= ic->nb_streams)
2353 avctx = ic->streams[stream_index]->codec;
2355 switch (avctx->codec_type) {
2356 case AVMEDIA_TYPE_AUDIO:
2357 packet_queue_abort(&is->audioq);
2361 packet_queue_end(&is->audioq);
2363 swr_free(&is->swr_ctx);
2364 av_free_packet(&is->audio_pkt);
2365 av_freep(&is->audio_buf1);
2366 is->audio_buf = NULL;
2367 av_freep(&is->frame);
2370 av_rdft_end(is->rdft);
2371 av_freep(&is->rdft_data);
2376 case AVMEDIA_TYPE_VIDEO:
2377 packet_queue_abort(&is->videoq);
2379 /* note: we also signal this mutex to make sure we deblock the
2380 video thread in all cases */
2381 SDL_LockMutex(is->pictq_mutex);
2382 SDL_CondSignal(is->pictq_cond);
2383 SDL_UnlockMutex(is->pictq_mutex);
2385 SDL_WaitThread(is->video_tid, NULL);
2387 packet_queue_end(&is->videoq);
2389 case AVMEDIA_TYPE_SUBTITLE:
2390 packet_queue_abort(&is->subtitleq);
2392 /* note: we also signal this mutex to make sure we deblock the
2393 video thread in all cases */
2394 SDL_LockMutex(is->subpq_mutex);
2395 is->subtitle_stream_changed = 1;
2397 SDL_CondSignal(is->subpq_cond);
2398 SDL_UnlockMutex(is->subpq_mutex);
2400 SDL_WaitThread(is->subtitle_tid, NULL);
2402 packet_queue_end(&is->subtitleq);
2408 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2409 avcodec_close(avctx);
2410 switch (avctx->codec_type) {
2411 case AVMEDIA_TYPE_AUDIO:
2412 is->audio_st = NULL;
2413 is->audio_stream = -1;
2415 case AVMEDIA_TYPE_VIDEO:
2416 is->video_st = NULL;
2417 is->video_stream = -1;
2419 case AVMEDIA_TYPE_SUBTITLE:
2420 is->subtitle_st = NULL;
2421 is->subtitle_stream = -1;
2428 static int decode_interrupt_cb(void *ctx)
2430 VideoState *is = ctx;
2431 return is->abort_request;
2434 /* this thread gets the stream from the disk or the network */
2435 static int read_thread(void *arg)
2437 VideoState *is = arg;
2438 AVFormatContext *ic = NULL;
2440 int st_index[AVMEDIA_TYPE_NB];
2441 AVPacket pkt1, *pkt = &pkt1;
2443 int pkt_in_play_range = 0;
2444 AVDictionaryEntry *t;
2445 AVDictionary **opts;
2446 int orig_nb_streams;
2448 memset(st_index, -1, sizeof(st_index));
2449 is->video_stream = -1;
2450 is->audio_stream = -1;
2451 is->subtitle_stream = -1;
2453 ic = avformat_alloc_context();
2454 ic->interrupt_callback.callback = decode_interrupt_cb;
2455 ic->interrupt_callback.opaque = is;
2456 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2458 print_error(is->filename, err);
2462 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2463 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2464 ret = AVERROR_OPTION_NOT_FOUND;
2470 ic->flags |= AVFMT_FLAG_GENPTS;
2472 opts = setup_find_stream_info_opts(ic, codec_opts);
2473 orig_nb_streams = ic->nb_streams;
2475 err = avformat_find_stream_info(ic, opts);
2477 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2481 for (i = 0; i < orig_nb_streams; i++)
2482 av_dict_free(&opts[i]);
2486 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
2488 if (seek_by_bytes < 0)
2489 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2491 /* if seeking requested, we execute it */
2492 if (start_time != AV_NOPTS_VALUE) {
2495 timestamp = start_time;
2496 /* add the stream start time */
2497 if (ic->start_time != AV_NOPTS_VALUE)
2498 timestamp += ic->start_time;
2499 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2501 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2502 is->filename, (double)timestamp / AV_TIME_BASE);
2506 for (i = 0; i < ic->nb_streams; i++)
2507 ic->streams[i]->discard = AVDISCARD_ALL;
2509 st_index[AVMEDIA_TYPE_VIDEO] =
2510 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2511 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2513 st_index[AVMEDIA_TYPE_AUDIO] =
2514 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2515 wanted_stream[AVMEDIA_TYPE_AUDIO],
2516 st_index[AVMEDIA_TYPE_VIDEO],
2519 st_index[AVMEDIA_TYPE_SUBTITLE] =
2520 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2521 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2522 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2523 st_index[AVMEDIA_TYPE_AUDIO] :
2524 st_index[AVMEDIA_TYPE_VIDEO]),
2527 av_dump_format(ic, 0, is->filename, 0);
2530 is->show_mode = show_mode;
2532 /* open the streams */
2533 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2534 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2538 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2539 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2541 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2542 if (is->show_mode == SHOW_MODE_NONE)
2543 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2545 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2546 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2549 if (is->video_stream < 0 && is->audio_stream < 0) {
2550 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2556 if (is->abort_request)
2558 if (is->paused != is->last_paused) {
2559 is->last_paused = is->paused;
2561 is->read_pause_return = av_read_pause(ic);
2565 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2567 (!strcmp(ic->iformat->name, "rtsp") ||
2568 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2569 /* wait 10 ms to avoid trying to get another packet */
2576 int64_t seek_target = is->seek_pos;
2577 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2578 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2579 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2580 // of the seek_pos/seek_rel variables
2582 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2584 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2586 if (is->audio_stream >= 0) {
2587 packet_queue_flush(&is->audioq);
2588 packet_queue_put(&is->audioq, &flush_pkt);
2590 if (is->subtitle_stream >= 0) {
2591 packet_queue_flush(&is->subtitleq);
2592 packet_queue_put(&is->subtitleq, &flush_pkt);
2594 if (is->video_stream >= 0) {
2595 packet_queue_flush(&is->videoq);
2596 packet_queue_put(&is->videoq, &flush_pkt);
2603 /* if the queue are full, no need to read more */
2604 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2605 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream < 0)
2606 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0)
2607 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0))) {
2613 if (is->video_stream >= 0) {
2614 av_init_packet(pkt);
2617 pkt->stream_index = is->video_stream;
2618 packet_queue_put(&is->videoq, pkt);
2620 if (is->audio_stream >= 0 &&
2621 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2622 av_init_packet(pkt);
2625 pkt->stream_index = is->audio_stream;
2626 packet_queue_put(&is->audioq, pkt);
2629 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2630 if (loop != 1 && (!loop || --loop)) {
2631 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2632 } else if (autoexit) {
2640 ret = av_read_frame(ic, pkt);
2642 if (ret == AVERROR_EOF || url_feof(ic->pb))
2644 if (ic->pb && ic->pb->error)
2646 SDL_Delay(100); /* wait for user event */
2649 /* check if packet is in play range specified by user, then queue, otherwise discard */
2650 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2651 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2652 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2653 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2654 <= ((double)duration / 1000000);
2655 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2656 packet_queue_put(&is->audioq, pkt);
2657 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2658 packet_queue_put(&is->videoq, pkt);
2659 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2660 packet_queue_put(&is->subtitleq, pkt);
2662 av_free_packet(pkt);
2665 /* wait until the end */
2666 while (!is->abort_request) {
2672 /* close each stream */
2673 if (is->audio_stream >= 0)
2674 stream_component_close(is, is->audio_stream);
2675 if (is->video_stream >= 0)
2676 stream_component_close(is, is->video_stream);
2677 if (is->subtitle_stream >= 0)
2678 stream_component_close(is, is->subtitle_stream);
2680 avformat_close_input(&is->ic);
2686 event.type = FF_QUIT_EVENT;
2687 event.user.data1 = is;
2688 SDL_PushEvent(&event);
2693 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2697 is = av_mallocz(sizeof(VideoState));
2700 av_strlcpy(is->filename, filename, sizeof(is->filename));
2701 is->iformat = iformat;
2705 /* start video display */
2706 is->pictq_mutex = SDL_CreateMutex();
2707 is->pictq_cond = SDL_CreateCond();
2709 is->subpq_mutex = SDL_CreateMutex();
2710 is->subpq_cond = SDL_CreateCond();
2712 is->av_sync_type = av_sync_type;
2713 is->read_tid = SDL_CreateThread(read_thread, is);
2714 if (!is->read_tid) {
2721 static void stream_cycle_channel(VideoState *is, int codec_type)
2723 AVFormatContext *ic = is->ic;
2724 int start_index, stream_index;
2727 if (codec_type == AVMEDIA_TYPE_VIDEO)
2728 start_index = is->video_stream;
2729 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2730 start_index = is->audio_stream;
2732 start_index = is->subtitle_stream;
2733 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2735 stream_index = start_index;
2737 if (++stream_index >= is->ic->nb_streams)
2739 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2746 if (stream_index == start_index)
2748 st = ic->streams[stream_index];
2749 if (st->codec->codec_type == codec_type) {
2750 /* check that parameters are OK */
2751 switch (codec_type) {
2752 case AVMEDIA_TYPE_AUDIO:
2753 if (st->codec->sample_rate != 0 &&
2754 st->codec->channels != 0)
2757 case AVMEDIA_TYPE_VIDEO:
2758 case AVMEDIA_TYPE_SUBTITLE:
2766 stream_component_close(is, start_index);
2767 stream_component_open(is, stream_index);
2771 static void toggle_full_screen(VideoState *is)
2774 is_full_screen = !is_full_screen;
2775 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2776 /* OS X needs to reallocate the SDL overlays */
2777 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
2778 is->pictq[i].reallocate = 1;
2784 static void toggle_pause(VideoState *is)
2786 stream_toggle_pause(is);
2790 static void step_to_next_frame(VideoState *is)
2792 /* if the stream is paused unpause it, then step */
2794 stream_toggle_pause(is);
2798 static void toggle_audio_display(VideoState *is)
2800 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2801 is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
2802 fill_rectangle(screen,
2803 is->xleft, is->ytop, is->width, is->height,
2805 SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
2808 /* handle an event sent by the GUI */
2809 static void event_loop(VideoState *cur_stream)
2812 double incr, pos, frac;
2816 SDL_WaitEvent(&event);
2817 switch (event.type) {
2819 if (exit_on_keydown) {
2820 do_exit(cur_stream);
2823 switch (event.key.keysym.sym) {
2826 do_exit(cur_stream);
2829 toggle_full_screen(cur_stream);
2833 toggle_pause(cur_stream);
2835 case SDLK_s: // S: Step to next frame
2836 step_to_next_frame(cur_stream);
2839 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2842 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2845 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2848 toggle_audio_display(cur_stream);
2868 if (seek_by_bytes) {
2869 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2870 pos = cur_stream->video_current_pos;
2871 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2872 pos = cur_stream->audio_pkt.pos;
2874 pos = avio_tell(cur_stream->ic->pb);
2875 if (cur_stream->ic->bit_rate)
2876 incr *= cur_stream->ic->bit_rate / 8.0;
2880 stream_seek(cur_stream, pos, incr, 1);
2882 pos = get_master_clock(cur_stream);
2884 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2891 case SDL_MOUSEBUTTONDOWN:
2892 if (exit_on_mousedown) {
2893 do_exit(cur_stream);
2896 case SDL_MOUSEMOTION:
2897 if (event.type == SDL_MOUSEBUTTONDOWN) {
2900 if (event.motion.state != SDL_PRESSED)
2904 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2905 uint64_t size = avio_size(cur_stream->ic->pb);
2906 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2910 int tns, thh, tmm, tss;
2911 tns = cur_stream->ic->duration / 1000000LL;
2913 tmm = (tns % 3600) / 60;
2915 frac = x / cur_stream->width;
2918 mm = (ns % 3600) / 60;
2920 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2921 hh, mm, ss, thh, tmm, tss);
2922 ts = frac * cur_stream->ic->duration;
2923 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2924 ts += cur_stream->ic->start_time;
2925 stream_seek(cur_stream, ts, 0, 0);
2928 case SDL_VIDEORESIZE:
2929 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2930 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2931 screen_width = cur_stream->width = event.resize.w;
2932 screen_height = cur_stream->height = event.resize.h;
2936 do_exit(cur_stream);
2938 case FF_ALLOC_EVENT:
2939 video_open(event.user.data1, 0);
2940 alloc_picture(event.user.data1);
2942 case FF_REFRESH_EVENT:
2943 video_refresh(event.user.data1);
2944 cur_stream->refresh = 0;
2952 static int opt_frame_size(const char *opt, const char *arg)
2954 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
2955 return opt_default("video_size", arg);
2958 static int opt_width(const char *opt, const char *arg)
2960 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2964 static int opt_height(const char *opt, const char *arg)
2966 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2970 static int opt_format(const char *opt, const char *arg)
2972 file_iformat = av_find_input_format(arg);
2973 if (!file_iformat) {
2974 fprintf(stderr, "Unknown input format: %s\n", arg);
2975 return AVERROR(EINVAL);
2980 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2982 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
2983 return opt_default("pixel_format", arg);
2986 static int opt_sync(const char *opt, const char *arg)
2988 if (!strcmp(arg, "audio"))
2989 av_sync_type = AV_SYNC_AUDIO_MASTER;
2990 else if (!strcmp(arg, "video"))
2991 av_sync_type = AV_SYNC_VIDEO_MASTER;
2992 else if (!strcmp(arg, "ext"))
2993 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2995 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
3001 static int opt_seek(const char *opt, const char *arg)
3003 start_time = parse_time_or_die(opt, arg, 1);
3007 static int opt_duration(const char *opt, const char *arg)
3009 duration = parse_time_or_die(opt, arg, 1);
3013 static int opt_show_mode(const char *opt, const char *arg)
3015 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
3016 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
3017 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
3018 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3022 static void opt_input_file(void *optctx, const char *filename)
3024 if (input_filename) {
3025 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3026 filename, input_filename);
3029 if (!strcmp(filename, "-"))
3031 input_filename = filename;
3034 static int opt_codec(void *o, const char *opt, const char *arg)
3036 switch(opt[strlen(opt)-1]){
3037 case 'a' : audio_codec_name = arg; break;
3038 case 's' : subtitle_codec_name = arg; break;
3039 case 'v' : video_codec_name = arg; break;
3046 static const OptionDef options[] = {
3047 #include "cmdutils_common_opts.h"
3048 { "x", HAS_ARG, { (void*)opt_width }, "force displayed width", "width" },
3049 { "y", HAS_ARG, { (void*)opt_height }, "force displayed height", "height" },
3050 { "s", HAS_ARG | OPT_VIDEO, { (void*)opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3051 { "fs", OPT_BOOL, { (void*)&is_full_screen }, "force full screen" },
3052 { "an", OPT_BOOL, { (void*)&audio_disable }, "disable audio" },
3053 { "vn", OPT_BOOL, { (void*)&video_disable }, "disable video" },
3054 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3055 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3056 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3057 { "ss", HAS_ARG, { (void*)&opt_seek }, "seek to a given position in seconds", "pos" },
3058 { "t", HAS_ARG, { (void*)&opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3059 { "bytes", OPT_INT | HAS_ARG, { (void*)&seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3060 { "nodisp", OPT_BOOL, { (void*)&display_disable }, "disable graphical display" },
3061 { "f", HAS_ARG, { (void*)opt_format }, "force format", "fmt" },
3062 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { (void*)opt_frame_pix_fmt }, "set pixel format", "format" },
3063 { "stats", OPT_BOOL | OPT_EXPERT, { (void*)&show_status }, "show status", "" },
3064 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&workaround_bugs }, "workaround bugs", "" },
3065 { "fast", OPT_BOOL | OPT_EXPERT, { (void*)&fast }, "non spec compliant optimizations", "" },
3066 { "genpts", OPT_BOOL | OPT_EXPERT, { (void*)&genpts }, "generate pts", "" },
3067 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3068 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&lowres }, "", "" },
3069 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_loop_filter }, "", "" },
3070 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_frame }, "", "" },
3071 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_idct }, "", "" },
3072 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&idct }, "set idct algo", "algo" },
3073 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&error_recognition }, "set error detection threshold (0-4)", "threshold" },
3074 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&error_concealment }, "set error concealment options", "bit_mask" },
3075 { "sync", HAS_ARG | OPT_EXPERT, { (void*)opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3076 { "autoexit", OPT_BOOL | OPT_EXPERT, { (void*)&autoexit }, "exit at the end", "" },
3077 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_keydown }, "exit on key down", "" },
3078 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_mousedown }, "exit on mouse down", "" },
3079 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&loop }, "set number of times the playback shall be looped", "loop count" },
3080 { "framedrop", OPT_BOOL | OPT_EXPERT, { (void*)&framedrop }, "drop frames when cpu is too slow", "" },
3081 { "window_title", OPT_STRING | HAS_ARG, { (void*)&window_title }, "set window title", "window title" },
3083 { "vf", OPT_STRING | HAS_ARG, { (void*)&vfilters }, "video filters", "filter list" },
3085 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { (void*)&rdftspeed }, "rdft speed", "msecs" },
3086 { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3087 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { (void*)opt_default }, "generic catch all option", "" },
3088 { "i", OPT_BOOL, {(void *)&dummy}, "read specified file", "input_file"},
3089 { "codec", HAS_ARG | OPT_FUNC2, {(void*)opt_codec}, "force decoder", "decoder" },
3093 static void show_usage(void)
3095 printf("Simple media player\n");
3096 printf("usage: %s [options] input_file\n", program_name);
3100 static int opt_help(const char *opt, const char *arg)
3102 av_log_set_callback(log_callback_help);
3104 show_help_options(options, "Main options:\n",
3106 show_help_options(options, "\nAdvanced options:\n",
3107 OPT_EXPERT, OPT_EXPERT);
3109 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3110 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3111 #if !CONFIG_AVFILTER
3112 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3114 printf("\nWhile playing:\n"
3116 "f toggle full screen\n"
3118 "a cycle audio channel\n"
3119 "v cycle video channel\n"
3120 "t cycle subtitle channel\n"
3121 "w show audio waves\n"
3122 "s activate frame-step mode\n"
3123 "left/right seek backward/forward 10 seconds\n"
3124 "down/up seek backward/forward 1 minute\n"
3125 "page down/page up seek backward/forward 10 minutes\n"
3126 "mouse click seek to percentage in file corresponding to fraction of width\n"
3131 static int lockmgr(void **mtx, enum AVLockOp op)
3134 case AV_LOCK_CREATE:
3135 *mtx = SDL_CreateMutex();
3139 case AV_LOCK_OBTAIN:
3140 return !!SDL_LockMutex(*mtx);
3141 case AV_LOCK_RELEASE:
3142 return !!SDL_UnlockMutex(*mtx);
3143 case AV_LOCK_DESTROY:
3144 SDL_DestroyMutex(*mtx);
3150 /* Called from the main */
3151 int main(int argc, char **argv)
3156 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3157 parse_loglevel(argc, argv, options);
3159 /* register all codecs, demux and protocols */
3160 avcodec_register_all();
3162 avdevice_register_all();
3165 avfilter_register_all();
3168 avformat_network_init();
3172 show_banner(argc, argv, options);
3174 parse_options(NULL, argc, argv, options, opt_input_file);
3176 if (!input_filename) {
3178 fprintf(stderr, "An input file must be specified\n");
3179 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3183 if (display_disable) {
3186 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3188 flags &= ~SDL_INIT_AUDIO;
3189 #if !defined(__MINGW32__) && !defined(__APPLE__)
3190 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3192 if (SDL_Init (flags)) {
3193 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3194 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3198 if (!display_disable) {
3199 #if HAVE_SDL_VIDEO_SIZE
3200 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3201 fs_screen_width = vi->current_w;
3202 fs_screen_height = vi->current_h;
3206 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3207 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3208 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3210 if (av_lockmgr_register(lockmgr)) {
3211 fprintf(stderr, "Could not initialize lock manager!\n");
3215 av_init_packet(&flush_pkt);
3216 flush_pkt.data = "FLUSH";
3218 is = stream_open(input_filename, file_iformat);
3220 fprintf(stderr, "Failed to initialize VideoState!\n");