diff options
Diffstat (limited to 'examples/alffplay.c')
| -rw-r--r-- | examples/alffplay.c | 1573 |
1 files changed, 0 insertions, 1573 deletions
diff --git a/examples/alffplay.c b/examples/alffplay.c deleted file mode 100644 index b61828f0..00000000 --- a/examples/alffplay.c +++ /dev/null @@ -1,1573 +0,0 @@ -/* - * alffplay.c - * - * A pedagogical video player that really works! Now with seeking features. - * - * Code based on FFplay, Copyright (c) 2003 Fabrice Bellard, and a tutorial by - * Martin Bohme <[email protected]>. - * - * Requires C99. - */ - -#include <stdio.h> -#include <math.h> - -#include <libavcodec/avcodec.h> -#include <libavformat/avformat.h> -#include <libavformat/avio.h> -#include <libavutil/time.h> -#include <libavutil/avstring.h> -#include <libavutil/channel_layout.h> -#include <libswscale/swscale.h> -#include <libswresample/swresample.h> - -#include <SDL.h> -#include <SDL_thread.h> -#include <SDL_video.h> - -#include "threads.h" -#include "bool.h" - -#include "AL/al.h" -#include "AL/alc.h" -#include "AL/alext.h" - - -static bool has_direct_out = false; -static bool has_latency_check = false; -static LPALGETSOURCEDVSOFT alGetSourcedvSOFT; - -#define AUDIO_BUFFER_TIME 100 /* In milliseconds, per-buffer */ -#define AUDIO_BUFFER_QUEUE_SIZE 8 /* Number of buffers to queue */ -#define MAX_AUDIOQ_SIZE (5 * 16 * 1024) /* Bytes of compressed audio data to keep queued */ -#define MAX_VIDEOQ_SIZE (5 * 256 * 1024) /* Bytes of compressed video data to keep queued */ -#define AV_SYNC_THRESHOLD 0.01 -#define AV_NOSYNC_THRESHOLD 10.0 -#define SAMPLE_CORRECTION_MAX_DIFF 0.1 -#define AUDIO_DIFF_AVG_NB 20 -#define VIDEO_PICTURE_QUEUE_SIZE 16 - -enum { - FF_UPDATE_EVENT = SDL_USEREVENT, - FF_REFRESH_EVENT, - FF_QUIT_EVENT -}; - - -typedef struct PacketQueue { - AVPacketList *first_pkt, *last_pkt; - volatile int nb_packets; - volatile int size; - volatile bool flushing; - almtx_t mutex; - alcnd_t cond; -} PacketQueue; - -typedef struct VideoPicture { - SDL_Texture *bmp; - int width, height; /* Logical image size (actual size may be larger) */ - volatile bool updated; - double pts; -} VideoPicture; - -typedef struct AudioState { - AVStream *st; - - PacketQueue q; - AVPacket pkt; - - /* Used for clock difference average computation */ - double diff_accum; - double diff_avg_coef; - double diff_threshold; - - /* Time (in seconds) of the next sample to be buffered */ - double current_pts; - - /* Decompressed sample frame, and swresample context for conversion */ - AVFrame *decoded_aframe; - struct SwrContext *swres_ctx; - - /* Conversion format, for what gets fed to OpenAL */ - int dst_ch_layout; - enum AVSampleFormat dst_sample_fmt; - - /* Storage of converted samples */ - uint8_t *samples; - ssize_t samples_len; /* In samples */ - ssize_t samples_pos; - int samples_max; - - /* OpenAL format */ - ALenum format; - ALint frame_size; - - ALuint source; - ALuint buffer[AUDIO_BUFFER_QUEUE_SIZE]; - ALuint buffer_idx; - almtx_t src_mutex; - - althrd_t thread; -} AudioState; - -typedef struct VideoState { - AVStream *st; - - PacketQueue q; - - double clock; - double frame_timer; - double frame_last_pts; - double frame_last_delay; - double current_pts; - /* time (av_gettime) at which we updated current_pts - used to have running video pts */ - int64_t current_pts_time; - - /* Decompressed video frame, and swscale context for conversion */ - AVFrame *decoded_vframe; - struct SwsContext *swscale_ctx; - - VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE]; - int pictq_size, pictq_rindex, pictq_windex; - almtx_t pictq_mutex; - alcnd_t pictq_cond; - - althrd_t thread; -} VideoState; - -typedef struct MovieState { - AVFormatContext *pFormatCtx; - int videoStream, audioStream; - - volatile bool seek_req; - int64_t seek_pos; - volatile bool direct_req; - - int av_sync_type; - - int64_t external_clock_base; - - AudioState audio; - VideoState video; - - althrd_t parse_thread; - - char filename[1024]; - - volatile bool quit; -} MovieState; - -enum { - AV_SYNC_AUDIO_MASTER, - AV_SYNC_VIDEO_MASTER, - AV_SYNC_EXTERNAL_MASTER, - - DEFAULT_AV_SYNC_TYPE = AV_SYNC_EXTERNAL_MASTER -}; - -static AVPacket flush_pkt = { .data = (uint8_t*)"FLUSH" }; - -static void packet_queue_init(PacketQueue *q) -{ - memset(q, 0, sizeof(PacketQueue)); - almtx_init(&q->mutex, almtx_plain); - alcnd_init(&q->cond); -} -static int packet_queue_put(PacketQueue *q, AVPacket *pkt) -{ - AVPacketList *pkt1; - if(pkt != &flush_pkt && !pkt->buf && av_dup_packet(pkt) < 0) - return -1; - - pkt1 = av_malloc(sizeof(AVPacketList)); - if(!pkt1) return -1; - pkt1->pkt = *pkt; - pkt1->next = NULL; - - almtx_lock(&q->mutex); - if(!q->last_pkt) - q->first_pkt = pkt1; - else - q->last_pkt->next = pkt1; - q->last_pkt = pkt1; - q->nb_packets++; - q->size += pkt1->pkt.size; - almtx_unlock(&q->mutex); - - alcnd_signal(&q->cond); - return 0; -} -static int packet_queue_get(PacketQueue *q, AVPacket *pkt, MovieState *state) -{ - AVPacketList *pkt1; - int ret = -1; - - almtx_lock(&q->mutex); - while(!state->quit) - { - pkt1 = q->first_pkt; - if(pkt1) - { - q->first_pkt = pkt1->next; - if(!q->first_pkt) - q->last_pkt = NULL; - q->nb_packets--; - q->size -= pkt1->pkt.size; - *pkt = pkt1->pkt; - av_free(pkt1); - ret = 1; - break; - } - - if(q->flushing) - { - ret = 0; - break; - } - alcnd_wait(&q->cond, &q->mutex); - } - almtx_unlock(&q->mutex); - return ret; -} -static void packet_queue_clear(PacketQueue *q) -{ - AVPacketList *pkt, *pkt1; - - almtx_lock(&q->mutex); - for(pkt = q->first_pkt;pkt != NULL;pkt = pkt1) - { - pkt1 = pkt->next; - if(pkt->pkt.data != flush_pkt.data) - av_free_packet(&pkt->pkt); - av_freep(&pkt); - } - q->last_pkt = NULL; - q->first_pkt = NULL; - q->nb_packets = 0; - q->size = 0; - almtx_unlock(&q->mutex); -} -static void packet_queue_flush(PacketQueue *q) -{ - almtx_lock(&q->mutex); - q->flushing = true; - almtx_unlock(&q->mutex); - alcnd_signal(&q->cond); -} -static void packet_queue_deinit(PacketQueue *q) -{ - packet_queue_clear(q); - alcnd_destroy(&q->cond); - almtx_destroy(&q->mutex); -} - - -static double get_audio_clock(AudioState *state) -{ - double pts; - - almtx_lock(&state->src_mutex); - /* The audio clock is the timestamp of the sample currently being heard. - * It's based on 4 components: - * 1 - The timestamp of the next sample to buffer (state->current_pts) - * 2 - The length of the source's buffer queue (AL_SEC_LENGTH_SOFT) - * 3 - The offset OpenAL is currently at in the source (the first value - * from AL_SEC_OFFSET_LATENCY_SOFT) - * 4 - The latency between OpenAL and the DAC (the second value from - * AL_SEC_OFFSET_LATENCY_SOFT) - * - * Subtracting the length of the source queue from the next sample's - * timestamp gives the timestamp of the sample at start of the source - * queue. Adding the source offset to that results in the timestamp for - * OpenAL's current position, and subtracting the source latency from that - * gives the timestamp of the sample currently at the DAC. - */ - pts = state->current_pts; - if(state->source) - { - ALdouble offset[2] = { 0.0, 0.0 }; - ALdouble queue_len = 0.0; - ALint status; - - /* NOTE: The source state must be checked last, in case an underrun - * occurs and the source stops between retrieving the offset+latency - * and getting the state. */ - if(has_latency_check) - { - alGetSourcedvSOFT(state->source, AL_SEC_OFFSET_LATENCY_SOFT, offset); - alGetSourcedvSOFT(state->source, AL_SEC_LENGTH_SOFT, &queue_len); - } - else - { - ALint ioffset, ilen; - alGetSourcei(state->source, AL_SAMPLE_OFFSET, &ioffset); - alGetSourcei(state->source, AL_SAMPLE_LENGTH_SOFT, &ilen); - offset[0] = (double)ioffset / state->st->codec->sample_rate; - queue_len = (double)ilen / state->st->codec->sample_rate; - } - alGetSourcei(state->source, AL_SOURCE_STATE, &status); - - /* If the source is AL_STOPPED, then there was an underrun and all - * buffers are processed, so ignore the source queue. The audio thread - * will put the source into an AL_INITIAL state and clear the queue - * when it starts recovery. */ - if(status != AL_STOPPED) - pts = pts - queue_len + offset[0]; - if(status == AL_PLAYING) - pts = pts - offset[1]; - } - almtx_unlock(&state->src_mutex); - - return (pts >= 0.0) ? pts : 0.0; -} -static double get_video_clock(VideoState *state) -{ - double delta = (av_gettime() - state->current_pts_time) / 1000000.0; - return state->current_pts + delta; -} -static double get_external_clock(MovieState *movState) -{ - return (av_gettime()-movState->external_clock_base) / 1000000.0; -} - -double get_master_clock(MovieState *movState) -{ - if(movState->av_sync_type == AV_SYNC_VIDEO_MASTER) - return get_video_clock(&movState->video); - if(movState->av_sync_type == AV_SYNC_AUDIO_MASTER) - return get_audio_clock(&movState->audio); - return get_external_clock(movState); -} - -/* Return how many samples to skip to maintain sync (negative means to - * duplicate samples). */ -static int synchronize_audio(MovieState *movState) -{ - double diff, avg_diff; - double ref_clock; - - if(movState->av_sync_type == AV_SYNC_AUDIO_MASTER) - return 0; - - ref_clock = get_master_clock(movState); - diff = ref_clock - get_audio_clock(&movState->audio); - - if(!(fabs(diff) < AV_NOSYNC_THRESHOLD)) - { - /* Difference is TOO big; reset diff stuff */ - movState->audio.diff_accum = 0.0; - return 0; - } - - /* Accumulate the diffs */ - movState->audio.diff_accum = movState->audio.diff_accum*movState->audio.diff_avg_coef + diff; - avg_diff = movState->audio.diff_accum*(1.0 - movState->audio.diff_avg_coef); - if(fabs(avg_diff) < movState->audio.diff_threshold) - return 0; - - /* Constrain the per-update difference to avoid exceedingly large skips */ - if(!(diff <= SAMPLE_CORRECTION_MAX_DIFF)) - diff = SAMPLE_CORRECTION_MAX_DIFF; - else if(!(diff >= -SAMPLE_CORRECTION_MAX_DIFF)) - diff = -SAMPLE_CORRECTION_MAX_DIFF; - return (int)(diff*movState->audio.st->codec->sample_rate); -} - -static int audio_decode_frame(MovieState *movState) -{ - AVPacket *pkt = &movState->audio.pkt; - - while(!movState->quit) - { - while(!movState->quit && pkt->size == 0) - { - av_free_packet(pkt); - - /* Get the next packet */ - int err; - if((err=packet_queue_get(&movState->audio.q, pkt, movState)) <= 0) - { - if(err == 0) - break; - return err; - } - if(pkt->data == flush_pkt.data) - { - avcodec_flush_buffers(movState->audio.st->codec); - movState->audio.diff_accum = 0.0; - movState->audio.current_pts = av_q2d(movState->audio.st->time_base)*pkt->pts; - - alSourceRewind(movState->audio.source); - alSourcei(movState->audio.source, AL_BUFFER, 0); - - av_new_packet(pkt, 0); - - return -1; - } - - /* If provided, update w/ pts */ - if(pkt->pts != AV_NOPTS_VALUE) - movState->audio.current_pts = av_q2d(movState->audio.st->time_base)*pkt->pts; - } - - AVFrame *frame = movState->audio.decoded_aframe; - int got_frame = 0; - int len1 = avcodec_decode_audio4(movState->audio.st->codec, frame, - &got_frame, pkt); - if(len1 < 0) - { - av_shrink_packet(pkt, 0); - continue; - } - - if(len1 <= pkt->size) - { - /* Move the unread data to the front and clear the end bits */ - int remaining = pkt->size - len1; - memmove(pkt->data, &pkt->data[len1], remaining); - av_shrink_packet(pkt, remaining); - } - - if(!got_frame || frame->nb_samples <= 0) - { - av_frame_unref(frame); - continue; - } - - if(frame->nb_samples > movState->audio.samples_max) - { - av_freep(&movState->audio.samples); - av_samples_alloc( - &movState->audio.samples, NULL, movState->audio.st->codec->channels, - frame->nb_samples, movState->audio.dst_sample_fmt, 0 - ); - movState->audio.samples_max = frame->nb_samples; - } - /* Return the amount of sample frames converted */ - int data_size = swr_convert(movState->audio.swres_ctx, - &movState->audio.samples, frame->nb_samples, - (const uint8_t**)frame->data, frame->nb_samples - ); - - av_frame_unref(frame); - return data_size; - } - - return -1; -} - -static int read_audio(MovieState *movState, uint8_t *samples, int length) -{ - int sample_skip = synchronize_audio(movState); - int audio_size = 0; - - /* Read the next chunk of data, refill the buffer, and queue it - * on the source */ - length /= movState->audio.frame_size; - while(audio_size < length) - { - if(movState->audio.samples_len <= 0 || movState->audio.samples_pos >= movState->audio.samples_len) - { - int frame_len = audio_decode_frame(movState); - if(frame_len < 0) return -1; - - movState->audio.samples_len = frame_len; - if(movState->audio.samples_len == 0) - break; - - movState->audio.samples_pos = (movState->audio.samples_len < sample_skip) ? - movState->audio.samples_len : sample_skip; - sample_skip -= movState->audio.samples_pos; - - movState->audio.current_pts += (double)movState->audio.samples_pos / - (double)movState->audio.st->codec->sample_rate; - continue; - } - - int rem = length - audio_size; - if(movState->audio.samples_pos >= 0) - { - int n = movState->audio.frame_size; - int len = movState->audio.samples_len - movState->audio.samples_pos; - if(rem > len) rem = len; - memcpy(samples + audio_size*n, - movState->audio.samples + movState->audio.samples_pos*n, - rem*n); - } - else - { - int n = movState->audio.frame_size; - int len = -movState->audio.samples_pos; - if(rem > len) rem = len; - - /* Add samples by copying the first sample */ - if(n == 1) - { - uint8_t sample = ((uint8_t*)movState->audio.samples)[0]; - uint8_t *q = (uint8_t*)samples + audio_size; - for(int i = 0;i < rem;i++) - *(q++) = sample; - } - else if(n == 2) - { - uint16_t sample = ((uint16_t*)movState->audio.samples)[0]; - uint16_t *q = (uint16_t*)samples + audio_size; - for(int i = 0;i < rem;i++) - *(q++) = sample; - } - else if(n == 4) - { - uint32_t sample = ((uint32_t*)movState->audio.samples)[0]; - uint32_t *q = (uint32_t*)samples + audio_size; - for(int i = 0;i < rem;i++) - *(q++) = sample; - } - else if(n == 8) - { - uint64_t sample = ((uint64_t*)movState->audio.samples)[0]; - uint64_t *q = (uint64_t*)samples + audio_size; - for(int i = 0;i < rem;i++) - *(q++) = sample; - } - else - { - uint8_t *sample = movState->audio.samples; - uint8_t *q = samples + audio_size*n; - for(int i = 0;i < rem;i++) - { - memcpy(q, sample, n); - q += n; - } - } - } - - movState->audio.samples_pos += rem; - movState->audio.current_pts += (double)rem / movState->audio.st->codec->sample_rate; - audio_size += rem; - } - - return audio_size * movState->audio.frame_size; -} - -static int audio_thread(void *userdata) -{ - MovieState *movState = (MovieState*)userdata; - uint8_t *samples = NULL; - ALsizei buffer_len; - ALenum fmt; - - alGenBuffers(AUDIO_BUFFER_QUEUE_SIZE, movState->audio.buffer); - alGenSources(1, &movState->audio.source); - - alSourcei(movState->audio.source, AL_SOURCE_RELATIVE, AL_TRUE); - alSourcei(movState->audio.source, AL_ROLLOFF_FACTOR, 0); - - av_new_packet(&movState->audio.pkt, 0); - - /* Find a suitable format for OpenAL. */ - movState->audio.format = AL_NONE; - if(movState->audio.st->codec->sample_fmt == AV_SAMPLE_FMT_U8 || - movState->audio.st->codec->sample_fmt == AV_SAMPLE_FMT_U8P) - { - movState->audio.dst_sample_fmt = AV_SAMPLE_FMT_U8; - movState->audio.frame_size = 1; - if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_7POINT1 && - alIsExtensionPresent("AL_EXT_MCFORMATS") && - (fmt=alGetEnumValue("AL_FORMAT_71CHN8")) != AL_NONE && fmt != -1) - { - movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; - movState->audio.frame_size *= 8; - movState->audio.format = fmt; - } - if((movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1 || - movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1_BACK) && - alIsExtensionPresent("AL_EXT_MCFORMATS") && - (fmt=alGetEnumValue("AL_FORMAT_51CHN8")) != AL_NONE && fmt != -1) - { - movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; - movState->audio.frame_size *= 6; - movState->audio.format = fmt; - } - if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_MONO) - { - movState->audio.dst_ch_layout = AV_CH_LAYOUT_MONO; - movState->audio.frame_size *= 1; - movState->audio.format = AL_FORMAT_MONO8; - } - if(movState->audio.format == AL_NONE) - { - movState->audio.dst_ch_layout = AV_CH_LAYOUT_STEREO; - movState->audio.frame_size *= 2; - movState->audio.format = AL_FORMAT_STEREO8; - } - } - if((movState->audio.st->codec->sample_fmt == AV_SAMPLE_FMT_FLT || - movState->audio.st->codec->sample_fmt == AV_SAMPLE_FMT_FLTP) && - alIsExtensionPresent("AL_EXT_FLOAT32")) - { - movState->audio.dst_sample_fmt = AV_SAMPLE_FMT_FLT; - movState->audio.frame_size = 4; - if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_7POINT1 && - alIsExtensionPresent("AL_EXT_MCFORMATS") && - (fmt=alGetEnumValue("AL_FORMAT_71CHN32")) != AL_NONE && fmt != -1) - { - movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; - movState->audio.frame_size *= 8; - movState->audio.format = fmt; - } - if((movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1 || - movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1_BACK) && - alIsExtensionPresent("AL_EXT_MCFORMATS") && - (fmt=alGetEnumValue("AL_FORMAT_51CHN32")) != AL_NONE && fmt != -1) - { - movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; - movState->audio.frame_size *= 6; - movState->audio.format = fmt; - } - if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_MONO) - { - movState->audio.dst_ch_layout = AV_CH_LAYOUT_MONO; - movState->audio.frame_size *= 1; - movState->audio.format = AL_FORMAT_MONO_FLOAT32; - } - if(movState->audio.format == AL_NONE) - { - movState->audio.dst_ch_layout = AV_CH_LAYOUT_STEREO; - movState->audio.frame_size *= 2; - movState->audio.format = AL_FORMAT_STEREO_FLOAT32; - } - } - if(movState->audio.format == AL_NONE) - { - movState->audio.dst_sample_fmt = AV_SAMPLE_FMT_S16; - movState->audio.frame_size = 2; - if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_7POINT1 && - alIsExtensionPresent("AL_EXT_MCFORMATS") && - (fmt=alGetEnumValue("AL_FORMAT_71CHN16")) != AL_NONE && fmt != -1) - { - movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; - movState->audio.frame_size *= 8; - movState->audio.format = fmt; - } - if((movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1 || - movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1_BACK) && - alIsExtensionPresent("AL_EXT_MCFORMATS") && - (fmt=alGetEnumValue("AL_FORMAT_51CHN16")) != AL_NONE && fmt != -1) - { - movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; - movState->audio.frame_size *= 6; - movState->audio.format = fmt; - } - if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_MONO) - { - movState->audio.dst_ch_layout = AV_CH_LAYOUT_MONO; - movState->audio.frame_size *= 1; - movState->audio.format = AL_FORMAT_MONO16; - } - if(movState->audio.format == AL_NONE) - { - movState->audio.dst_ch_layout = AV_CH_LAYOUT_STEREO; - movState->audio.frame_size *= 2; - movState->audio.format = AL_FORMAT_STEREO16; - } - } - buffer_len = AUDIO_BUFFER_TIME * movState->audio.st->codec->sample_rate / 1000 * - movState->audio.frame_size; - samples = av_malloc(buffer_len); - - movState->audio.samples = NULL; - movState->audio.samples_max = 0; - movState->audio.samples_pos = 0; - movState->audio.samples_len = 0; - - if(!(movState->audio.decoded_aframe=av_frame_alloc())) - { - fprintf(stderr, "Failed to allocate audio frame\n"); - goto finish; - } - - movState->audio.swres_ctx = swr_alloc_set_opts(NULL, - movState->audio.dst_ch_layout, - movState->audio.dst_sample_fmt, - movState->audio.st->codec->sample_rate, - movState->audio.st->codec->channel_layout ? - movState->audio.st->codec->channel_layout : - (uint64_t)av_get_default_channel_layout(movState->audio.st->codec->channels), - movState->audio.st->codec->sample_fmt, - movState->audio.st->codec->sample_rate, - 0, NULL - ); - if(!movState->audio.swres_ctx || swr_init(movState->audio.swres_ctx) != 0) - { - fprintf(stderr, "Failed to initialize audio converter\n"); - goto finish; - } - - almtx_lock(&movState->audio.src_mutex); - while(alGetError() == AL_NO_ERROR && !movState->quit) - { - /* First remove any processed buffers. */ - ALint processed; - alGetSourcei(movState->audio.source, AL_BUFFERS_PROCESSED, &processed); - alSourceUnqueueBuffers(movState->audio.source, processed, (ALuint[AUDIO_BUFFER_QUEUE_SIZE]){}); - - /* Refill the buffer queue. */ - ALint queued; - alGetSourcei(movState->audio.source, AL_BUFFERS_QUEUED, &queued); - while(queued < AUDIO_BUFFER_QUEUE_SIZE) - { - int audio_size; - - /* Read the next chunk of data, fill the buffer, and queue it on - * the source */ - audio_size = read_audio(movState, samples, buffer_len); - if(audio_size < 0) break; - - ALuint bufid = movState->audio.buffer[movState->audio.buffer_idx++]; - movState->audio.buffer_idx %= AUDIO_BUFFER_QUEUE_SIZE; - - alBufferData(bufid, movState->audio.format, samples, audio_size, - movState->audio.st->codec->sample_rate); - alSourceQueueBuffers(movState->audio.source, 1, &bufid); - queued++; - } - - /* Check that the source is playing. */ - ALint state; - alGetSourcei(movState->audio.source, AL_SOURCE_STATE, &state); - if(state == AL_STOPPED) - { - /* AL_STOPPED means there was an underrun. Double-check that all - * processed buffers are removed, then rewind the source to get it - * back into an AL_INITIAL state. */ - alGetSourcei(movState->audio.source, AL_BUFFERS_PROCESSED, &processed); - alSourceUnqueueBuffers(movState->audio.source, processed, (ALuint[AUDIO_BUFFER_QUEUE_SIZE]){}); - alSourceRewind(movState->audio.source); - continue; - } - - almtx_unlock(&movState->audio.src_mutex); - - /* (re)start the source if needed, and wait for a buffer to finish */ - if(state != AL_PLAYING && state != AL_PAUSED) - { - alGetSourcei(movState->audio.source, AL_BUFFERS_QUEUED, &queued); - if(queued > 0) alSourcePlay(movState->audio.source); - } - SDL_Delay(AUDIO_BUFFER_TIME); - - if(movState->direct_req) - { - if(has_direct_out) - { - alGetSourcei(movState->audio.source, AL_DIRECT_CHANNELS_SOFT, &state); - state = !state; - alSourcei(movState->audio.source, AL_DIRECT_CHANNELS_SOFT, - state ? AL_TRUE : AL_FALSE); - printf("Direct channels %s\n", state ? "on" : "off"); - fflush(stdout); - } - movState->direct_req = false; - } - - almtx_lock(&movState->audio.src_mutex); - } - almtx_unlock(&movState->audio.src_mutex); - -finish: - av_frame_free(&movState->audio.decoded_aframe); - swr_free(&movState->audio.swres_ctx); - - av_freep(&samples); - av_freep(&movState->audio.samples); - - alDeleteSources(1, &movState->audio.source); - alDeleteBuffers(AUDIO_BUFFER_QUEUE_SIZE, movState->audio.buffer); - - return 0; -} - - -static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque) -{ - (void)interval; - - SDL_PushEvent(&(SDL_Event){ .user={.type=FF_REFRESH_EVENT, .data1=opaque} }); - return 0; /* 0 means stop timer */ -} - -/* Schedule a video refresh in 'delay' ms */ -static void schedule_refresh(MovieState *movState, int delay) -{ - SDL_AddTimer(delay, sdl_refresh_timer_cb, movState); -} - -static void video_display(MovieState *movState, SDL_Window *screen, SDL_Renderer *renderer) -{ - VideoPicture *vp = &movState->video.pictq[movState->video.pictq_rindex]; - - if(!vp->bmp) - return; - - float aspect_ratio; - int win_w, win_h; - int w, h, x, y; - - if(movState->video.st->codec->sample_aspect_ratio.num == 0) - aspect_ratio = 0.0f; - else - { - aspect_ratio = av_q2d(movState->video.st->codec->sample_aspect_ratio) * - movState->video.st->codec->width / - movState->video.st->codec->height; - } - if(aspect_ratio <= 0.0f) - { - aspect_ratio = (float)movState->video.st->codec->width / - (float)movState->video.st->codec->height; - } - - SDL_GetWindowSize(screen, &win_w, &win_h); - h = win_h; - w = ((int)rint(h * aspect_ratio) + 3) & ~3; - if(w > win_w) - { - w = win_w; - h = ((int)rint(w / aspect_ratio) + 3) & ~3; - } - x = (win_w - w) / 2; - y = (win_h - h) / 2; - - SDL_RenderCopy(renderer, vp->bmp, - &(SDL_Rect){ .x=0, .y=0, .w=vp->width, .h=vp->height }, - &(SDL_Rect){ .x=x, .y=y, .w=w, .h=h } - ); - SDL_RenderPresent(renderer); -} - -static void video_refresh_timer(MovieState *movState, SDL_Window *screen, SDL_Renderer *renderer) -{ - if(!movState->video.st) - { - schedule_refresh(movState, 100); - return; - } - - almtx_lock(&movState->video.pictq_mutex); -retry: - if(movState->video.pictq_size == 0) - schedule_refresh(movState, 1); - else - { - VideoPicture *vp = &movState->video.pictq[movState->video.pictq_rindex]; - double actual_delay, delay, sync_threshold, ref_clock, diff; - - movState->video.current_pts = vp->pts; - movState->video.current_pts_time = av_gettime(); - - delay = vp->pts - movState->video.frame_last_pts; /* the pts from last time */ - if(delay <= 0 || delay >= 1.0) - { - /* if incorrect delay, use previous one */ - delay = movState->video.frame_last_delay; - } - /* save for next time */ - movState->video.frame_last_delay = delay; - movState->video.frame_last_pts = vp->pts; - - /* Update delay to sync to clock if not master source. */ - if(movState->av_sync_type != AV_SYNC_VIDEO_MASTER) - { - ref_clock = get_master_clock(movState); - diff = vp->pts - ref_clock; - - /* Skip or repeat the frame. Take delay into account. */ - sync_threshold = (delay > AV_SYNC_THRESHOLD) ? delay : AV_SYNC_THRESHOLD; - if(fabs(diff) < AV_NOSYNC_THRESHOLD) - { - if(diff <= -sync_threshold) - delay = 0; - else if(diff >= sync_threshold) - delay = 2 * delay; - } - } - - movState->video.frame_timer += delay; - /* Compute the REAL delay. */ - actual_delay = movState->video.frame_timer - (av_gettime() / 1000000.0); - if(!(actual_delay >= 0.010)) - { - /* We don't have time to handle this picture, just skip to the next one. */ - movState->video.pictq_rindex = (movState->video.pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE; - movState->video.pictq_size--; - alcnd_signal(&movState->video.pictq_cond); - goto retry; - } - schedule_refresh(movState, (int)(actual_delay*1000.0 + 0.5)); - - /* Show the picture! */ - video_display(movState, screen, renderer); - - /* Update queue for next picture. */ - movState->video.pictq_rindex = (movState->video.pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE; - movState->video.pictq_size--; - alcnd_signal(&movState->video.pictq_cond); - } - almtx_unlock(&movState->video.pictq_mutex); -} - - -static void update_picture(MovieState *movState, bool *first_update, SDL_Window *screen, SDL_Renderer *renderer) -{ - VideoPicture *vp = &movState->video.pictq[movState->video.pictq_windex]; - - /* allocate or resize the buffer! */ - if(!vp->bmp || vp->width != movState->video.st->codec->width || - vp->height != movState->video.st->codec->height) - { - if(vp->bmp) - SDL_DestroyTexture(vp->bmp); - vp->bmp = SDL_CreateTexture( - renderer, SDL_PIXELFORMAT_YV12, SDL_TEXTUREACCESS_STREAMING, - movState->video.st->codec->coded_width, movState->video.st->codec->coded_height - ); - if(!vp->bmp) - fprintf(stderr, "Failed to create YV12 texture!\n"); - vp->width = movState->video.st->codec->width; - vp->height = movState->video.st->codec->height; - - if(*first_update && vp->width > 0 && vp->height > 0) - { - /* For the first update, set the window size to the video size. */ - *first_update = false; - - int w = vp->width; - int h = vp->height; - if(movState->video.st->codec->sample_aspect_ratio.num != 0 && - movState->video.st->codec->sample_aspect_ratio.den != 0) - { - double aspect_ratio = av_q2d(movState->video.st->codec->sample_aspect_ratio); - if(aspect_ratio >= 1.0) - w = (int)(w*aspect_ratio + 0.5); - else if(aspect_ratio > 0.0) - h = (int)(h/aspect_ratio + 0.5); - } - SDL_SetWindowSize(screen, w, h); - } - } - - if(vp->bmp) - { - AVFrame *frame = movState->video.decoded_vframe; - void *pixels = NULL; - int pitch = 0; - - if(movState->video.st->codec->pix_fmt == AV_PIX_FMT_YUV420P) - SDL_UpdateYUVTexture(vp->bmp, NULL, - frame->data[0], frame->linesize[0], - frame->data[1], frame->linesize[1], - frame->data[2], frame->linesize[2] - ); - else if(SDL_LockTexture(vp->bmp, NULL, &pixels, &pitch) != 0) - fprintf(stderr, "Failed to lock texture\n"); - else - { - // Convert the image into YUV format that SDL uses - int coded_w = movState->video.st->codec->coded_width; - int coded_h = movState->video.st->codec->coded_height; - int w = movState->video.st->codec->width; - int h = movState->video.st->codec->height; - if(!movState->video.swscale_ctx) - movState->video.swscale_ctx = sws_getContext( - w, h, movState->video.st->codec->pix_fmt, - w, h, AV_PIX_FMT_YUV420P, SWS_X, NULL, NULL, NULL - ); - - /* point pict at the queue */ - AVPicture pict; - pict.data[0] = pixels; - pict.data[2] = pict.data[0] + coded_w*coded_h; - pict.data[1] = pict.data[2] + coded_w*coded_h/4; - - pict.linesize[0] = pitch; - pict.linesize[2] = pitch / 2; - pict.linesize[1] = pitch / 2; - - sws_scale(movState->video.swscale_ctx, (const uint8_t**)frame->data, - frame->linesize, 0, h, pict.data, pict.linesize); - SDL_UnlockTexture(vp->bmp); - } - } - - almtx_lock(&movState->video.pictq_mutex); - vp->updated = true; - almtx_unlock(&movState->video.pictq_mutex); - alcnd_signal(&movState->video.pictq_cond); -} - -static int queue_picture(MovieState *movState, double pts) -{ - /* Wait until we have space for a new pic */ - almtx_lock(&movState->video.pictq_mutex); - while(movState->video.pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && !movState->quit) - alcnd_wait(&movState->video.pictq_cond, &movState->video.pictq_mutex); - almtx_unlock(&movState->video.pictq_mutex); - - if(movState->quit) - return -1; - - VideoPicture *vp = &movState->video.pictq[movState->video.pictq_windex]; - - /* We have to create/update the picture in the main thread */ - vp->updated = false; - SDL_PushEvent(&(SDL_Event){ .user={.type=FF_UPDATE_EVENT, .data1=movState} }); - - /* Wait until the picture is updated. */ - almtx_lock(&movState->video.pictq_mutex); - while(!vp->updated && !movState->quit) - alcnd_wait(&movState->video.pictq_cond, &movState->video.pictq_mutex); - almtx_unlock(&movState->video.pictq_mutex); - if(movState->quit) - return -1; - vp->pts = pts; - - movState->video.pictq_windex = (movState->video.pictq_windex+1)%VIDEO_PICTURE_QUEUE_SIZE; - almtx_lock(&movState->video.pictq_mutex); - movState->video.pictq_size++; - almtx_unlock(&movState->video.pictq_mutex); - - return 0; -} - -static double synchronize_video(MovieState *movState, double pts) -{ - double frame_delay; - - if(pts == 0.0) /* if we aren't given a pts, set it to the clock */ - pts = movState->video.clock; - else /* if we have pts, set video clock to it */ - movState->video.clock = pts; - - /* update the video clock */ - frame_delay = av_q2d(movState->video.st->codec->time_base); - /* if we are repeating a frame, adjust clock accordingly */ - frame_delay += movState->video.decoded_vframe->repeat_pict * (frame_delay * 0.5); - movState->video.clock += frame_delay; - return pts; -} - -int video_thread(void *arg) -{ - MovieState *movState = (MovieState*)arg; - AVPacket *packet = (AVPacket[1]){}; - int64_t saved_pts, pkt_pts; - int frameFinished; - - movState->video.decoded_vframe = av_frame_alloc(); - while(packet_queue_get(&movState->video.q, packet, movState) >= 0) - { - if(packet->data == flush_pkt.data) - { - avcodec_flush_buffers(movState->video.st->codec); - - almtx_lock(&movState->video.pictq_mutex); - movState->video.pictq_size = 0; - movState->video.pictq_rindex = 0; - movState->video.pictq_windex = 0; - almtx_unlock(&movState->video.pictq_mutex); - - movState->video.clock = av_q2d(movState->video.st->time_base)*packet->pts; - movState->video.current_pts = movState->video.clock; - movState->video.current_pts_time = av_gettime(); - continue; - } - - pkt_pts = packet->pts; - - /* Decode video frame */ - avcodec_decode_video2(movState->video.st->codec, movState->video.decoded_vframe, - &frameFinished, packet); - if(pkt_pts != AV_NOPTS_VALUE && !movState->video.decoded_vframe->opaque) - { - /* Store the packet's original pts in the frame, in case the frame - * is not finished decoding yet. */ - saved_pts = pkt_pts; - movState->video.decoded_vframe->opaque = &saved_pts; - } - - av_free_packet(packet); - - if(frameFinished) - { - double pts = av_q2d(movState->video.st->time_base); - if(packet->dts != AV_NOPTS_VALUE) - pts *= packet->dts; - else if(movState->video.decoded_vframe->opaque) - pts *= *(int64_t*)movState->video.decoded_vframe->opaque; - else - pts *= 0.0; - movState->video.decoded_vframe->opaque = NULL; - - pts = synchronize_video(movState, pts); - if(queue_picture(movState, pts) < 0) - break; - } - } - - sws_freeContext(movState->video.swscale_ctx); - movState->video.swscale_ctx = NULL; - av_frame_free(&movState->video.decoded_vframe); - return 0; -} - - -static int stream_component_open(MovieState *movState, int stream_index) -{ - AVFormatContext *pFormatCtx = movState->pFormatCtx; - AVCodecContext *codecCtx; - AVCodec *codec; - - if(stream_index < 0 || (unsigned int)stream_index >= pFormatCtx->nb_streams) - return -1; - - /* Get a pointer to the codec context for the video stream, and open the - * associated codec */ - codecCtx = pFormatCtx->streams[stream_index]->codec; - - codec = avcodec_find_decoder(codecCtx->codec_id); - if(!codec || avcodec_open2(codecCtx, codec, NULL) < 0) - { - fprintf(stderr, "Unsupported codec!\n"); - return -1; - } - - /* Initialize and start the media type handler */ - switch(codecCtx->codec_type) - { - case AVMEDIA_TYPE_AUDIO: - movState->audioStream = stream_index; - movState->audio.st = pFormatCtx->streams[stream_index]; - - /* Averaging filter for audio sync */ - movState->audio.diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB); - /* Correct audio only if larger error than this */ - movState->audio.diff_threshold = 2.0 * 0.050/* 50 ms */; - - memset(&movState->audio.pkt, 0, sizeof(movState->audio.pkt)); - if(althrd_create(&movState->audio.thread, audio_thread, movState) != althrd_success) - { - movState->audioStream = -1; - movState->audio.st = NULL; - } - break; - - case AVMEDIA_TYPE_VIDEO: - movState->videoStream = stream_index; - movState->video.st = pFormatCtx->streams[stream_index]; - - movState->video.current_pts_time = av_gettime(); - movState->video.frame_timer = (double)movState->video.current_pts_time / - 1000000.0; - movState->video.frame_last_delay = 40e-3; - - if(althrd_create(&movState->video.thread, video_thread, movState) != althrd_success) - { - movState->videoStream = -1; - movState->video.st = NULL; - } - break; - - default: - break; - } - - return 0; -} - -static int decode_interrupt_cb(void *ctx) -{ - return ((MovieState*)ctx)->quit; -} - -int decode_thread(void *arg) -{ - MovieState *movState = (MovieState *)arg; - AVFormatContext *fmtCtx = movState->pFormatCtx; - AVPacket *packet = (AVPacket[1]){}; - int video_index = -1; - int audio_index = -1; - - movState->videoStream = -1; - movState->audioStream = -1; - - /* Dump information about file onto standard error */ - av_dump_format(fmtCtx, 0, movState->filename, 0); - - /* Find the first video and audio streams */ - for(unsigned int i = 0;i < fmtCtx->nb_streams;i++) - { - if(fmtCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO && video_index < 0) - video_index = i; - else if(fmtCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO && audio_index < 0) - audio_index = i; - } - movState->external_clock_base = av_gettime(); - if(audio_index >= 0) - stream_component_open(movState, audio_index); - if(video_index >= 0) - stream_component_open(movState, video_index); - - if(movState->videoStream < 0 && movState->audioStream < 0) - { - fprintf(stderr, "%s: could not open codecs\n", movState->filename); - goto fail; - } - - /* Main packet handling loop */ - while(!movState->quit) - { - if(movState->seek_req) - { - int64_t seek_target = movState->seek_pos; - int stream_index= -1; - - /* Prefer seeking on the video stream. */ - if(movState->videoStream >= 0) - stream_index = movState->videoStream; - else if(movState->audioStream >= 0) - stream_index = movState->audioStream; - - /* Get a seek timestamp for the appropriate stream. */ - int64_t timestamp = seek_target; - if(stream_index >= 0) - timestamp = av_rescale_q(seek_target, AV_TIME_BASE_Q, fmtCtx->streams[stream_index]->time_base); - - if(av_seek_frame(movState->pFormatCtx, stream_index, timestamp, 0) < 0) - fprintf(stderr, "%s: error while seeking\n", movState->pFormatCtx->filename); - else - { - /* Seek successful, clear the packet queues and send a special - * 'flush' packet with the new stream clock time. */ - if(movState->audioStream >= 0) - { - packet_queue_clear(&movState->audio.q); - flush_pkt.pts = av_rescale_q(seek_target, AV_TIME_BASE_Q, - fmtCtx->streams[movState->audioStream]->time_base - ); - packet_queue_put(&movState->audio.q, &flush_pkt); - } - if(movState->videoStream >= 0) - { - packet_queue_clear(&movState->video.q); - flush_pkt.pts = av_rescale_q(seek_target, AV_TIME_BASE_Q, - fmtCtx->streams[movState->videoStream]->time_base - ); - packet_queue_put(&movState->video.q, &flush_pkt); - } - movState->external_clock_base = av_gettime() - seek_target; - } - movState->seek_req = false; - } - - if(movState->audio.q.size >= MAX_AUDIOQ_SIZE || - movState->video.q.size >= MAX_VIDEOQ_SIZE) - { - SDL_Delay(10); - continue; - } - - if(av_read_frame(movState->pFormatCtx, packet) < 0) - { - packet_queue_flush(&movState->video.q); - packet_queue_flush(&movState->audio.q); - break; - } - - /* Place the packet in the queue it's meant for, or discard it. */ - if(packet->stream_index == movState->videoStream) - packet_queue_put(&movState->video.q, packet); - else if(packet->stream_index == movState->audioStream) - packet_queue_put(&movState->audio.q, packet); - else - av_free_packet(packet); - } - - /* all done - wait for it */ - while(!movState->quit) - { - if(movState->audio.q.nb_packets == 0 && movState->video.q.nb_packets == 0) - break; - SDL_Delay(100); - } - -fail: - movState->quit = true; - packet_queue_flush(&movState->video.q); - packet_queue_flush(&movState->audio.q); - - if(movState->videoStream >= 0) - althrd_join(movState->video.thread, NULL); - if(movState->audioStream >= 0) - althrd_join(movState->audio.thread, NULL); - - SDL_PushEvent(&(SDL_Event){ .user={.type=FF_QUIT_EVENT, .data1=movState} }); - - return 0; -} - - -static void stream_seek(MovieState *movState, double incr) -{ - if(!movState->seek_req) - { - double newtime = get_master_clock(movState)+incr; - if(newtime <= 0.0) movState->seek_pos = 0; - else movState->seek_pos = (int64_t)(newtime * AV_TIME_BASE); - movState->seek_req = true; - } -} - -int main(int argc, char *argv[]) -{ - SDL_Event event; - MovieState *movState; - bool first_update = true; - SDL_Window *screen; - SDL_Renderer *renderer; - ALCdevice *device; - ALCcontext *context; - int fileidx; - - if(argc < 2) - { - fprintf(stderr, "Usage: %s <file>\n", argv[0]); - return 1; - } - /* Register all formats and codecs */ - av_register_all(); - /* Initialize networking protocols */ - avformat_network_init(); - - if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER)) - { - fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError()); - return 1; - } - - /* Make a window to put our video */ - screen = SDL_CreateWindow("alffplay", 0, 0, 640, 480, SDL_WINDOW_RESIZABLE); - if(!screen) - { - fprintf(stderr, "SDL: could not set video mode - exiting\n"); - return 1; - } - /* Make a renderer to handle the texture image surface and rendering. */ - renderer = SDL_CreateRenderer(screen, -1, SDL_RENDERER_ACCELERATED); - if(renderer) - { - SDL_RendererInfo rinf; - bool ok = false; - - /* Make sure the renderer supports YV12 textures. If not, fallback to a - * software renderer. */ - if(SDL_GetRendererInfo(renderer, &rinf) == 0) - { - for(Uint32 i = 0;!ok && i < rinf.num_texture_formats;i++) - ok = (rinf.texture_formats[i] == SDL_PIXELFORMAT_YV12); - } - if(!ok) - { - fprintf(stderr, "YV12 pixelformat textures not supported on renderer %s\n", rinf.name); - SDL_DestroyRenderer(renderer); - renderer = NULL; - } - } - if(!renderer) - renderer = SDL_CreateRenderer(screen, -1, SDL_RENDERER_SOFTWARE); - if(!renderer) - { - fprintf(stderr, "SDL: could not create renderer - exiting\n"); - return 1; - } - SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255); - SDL_RenderFillRect(renderer, NULL); - SDL_RenderPresent(renderer); - - /* Open an audio device */ - fileidx = 1; - device = NULL; - if(argc > 3 && strcmp(argv[1], "-device") == 0) - { - fileidx = 3; - device = alcOpenDevice(argv[2]); - if(!device) - fprintf(stderr, "OpenAL: could not open \"%s\" - trying default\n", argv[2]); - } - if(!device) - device = alcOpenDevice(NULL); - if(!device) - { - fprintf(stderr, "OpenAL: could not open device - exiting\n"); - return 1; - } - context = alcCreateContext(device, NULL); - if(!context) - { - fprintf(stderr, "OpenAL: could not create context - exiting\n"); - return 1; - } - if(alcMakeContextCurrent(context) == ALC_FALSE) - { - fprintf(stderr, "OpenAL: could not make context current - exiting\n"); - return 1; - } - - if(!alIsExtensionPresent("AL_SOFT_source_length")) - { - fprintf(stderr, "Required AL_SOFT_source_length not supported - exiting\n"); - return 1; - } - - if(!alIsExtensionPresent("AL_SOFT_direct_channels")) - fprintf(stderr, "AL_SOFT_direct_channels not supported.\n"); - else - has_direct_out = true; - - if(!alIsExtensionPresent("AL_SOFT_source_latency")) - fprintf(stderr, "AL_SOFT_source_latency not supported, audio may be a bit laggy.\n"); - else - { - alGetSourcedvSOFT = alGetProcAddress("alGetSourcedvSOFT"); - has_latency_check = true; - } - - - movState = av_mallocz(sizeof(MovieState)); - - av_strlcpy(movState->filename, argv[fileidx], sizeof(movState->filename)); - - packet_queue_init(&movState->audio.q); - packet_queue_init(&movState->video.q); - - almtx_init(&movState->video.pictq_mutex, almtx_plain); - alcnd_init(&movState->video.pictq_cond); - almtx_init(&movState->audio.src_mutex, almtx_recursive); - - movState->av_sync_type = DEFAULT_AV_SYNC_TYPE; - - movState->pFormatCtx = avformat_alloc_context(); - movState->pFormatCtx->interrupt_callback = (AVIOInterruptCB){.callback=decode_interrupt_cb, .opaque=movState}; - - if(avio_open2(&movState->pFormatCtx->pb, movState->filename, AVIO_FLAG_READ, - &movState->pFormatCtx->interrupt_callback, NULL)) - { - fprintf(stderr, "Failed to open %s\n", movState->filename); - return 1; - } - - /* Open movie file */ - if(avformat_open_input(&movState->pFormatCtx, movState->filename, NULL, NULL) != 0) - { - fprintf(stderr, "Failed to open %s\n", movState->filename); - return 1; - } - - /* Retrieve stream information */ - if(avformat_find_stream_info(movState->pFormatCtx, NULL) < 0) - { - fprintf(stderr, "%s: failed to find stream info\n", movState->filename); - return 1; - } - - schedule_refresh(movState, 40); - - - if(althrd_create(&movState->parse_thread, decode_thread, movState) != althrd_success) - { - fprintf(stderr, "Failed to create parse thread!\n"); - return 1; - } - while(SDL_WaitEvent(&event) == 1) - { - switch(event.type) - { - case SDL_KEYDOWN: - switch(event.key.keysym.sym) - { - case SDLK_ESCAPE: - movState->quit = true; - break; - - case SDLK_LEFT: - stream_seek(movState, -10.0); - break; - case SDLK_RIGHT: - stream_seek(movState, 10.0); - break; - case SDLK_UP: - stream_seek(movState, 30.0); - break; - case SDLK_DOWN: - stream_seek(movState, -30.0); - break; - - case SDLK_d: - movState->direct_req = true; - break; - - default: - break; - } - break; - - case SDL_WINDOWEVENT: - switch(event.window.event) - { - case SDL_WINDOWEVENT_RESIZED: - SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255); - SDL_RenderFillRect(renderer, NULL); - break; - - default: - break; - } - break; - - case SDL_QUIT: - movState->quit = true; - break; - - case FF_UPDATE_EVENT: - update_picture(event.user.data1, &first_update, screen, renderer); - break; - - case FF_REFRESH_EVENT: - video_refresh_timer(event.user.data1, screen, renderer); - break; - - case FF_QUIT_EVENT: - althrd_join(movState->parse_thread, NULL); - - avformat_close_input(&movState->pFormatCtx); - - almtx_destroy(&movState->audio.src_mutex); - almtx_destroy(&movState->video.pictq_mutex); - alcnd_destroy(&movState->video.pictq_cond); - packet_queue_deinit(&movState->video.q); - packet_queue_deinit(&movState->audio.q); - - alcMakeContextCurrent(NULL); - alcDestroyContext(context); - alcCloseDevice(device); - - SDL_Quit(); - exit(0); - - default: - break; - } - } - - fprintf(stderr, "SDL_WaitEvent error - %s\n", SDL_GetError()); - return 1; -} |