2 * Copyright 2012 Michael Chen <omxcodec@gmail.com>
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #define LOG_TAG "FFmpegExtractor"
19 #include <utils/Log.h>
21 #include <limits.h> /* INT_MAX */
23 #include <media/stagefright/foundation/ABitReader.h>
24 #include <media/stagefright/foundation/ABuffer.h>
25 #include <media/stagefright/foundation/ADebug.h>
26 #include <media/stagefright/foundation/AMessage.h>
27 #include <media/stagefright/foundation/hexdump.h>
28 #include <media/stagefright/DataSource.h>
29 #include <media/stagefright/MediaBuffer.h>
30 #include <media/stagefright/MediaDebug.h>
31 #include <media/stagefright/MediaDefs.h>
32 #include <media/stagefright/MediaErrors.h>
33 #include <media/stagefright/MediaSource.h>
34 #include <media/stagefright/MetaData.h>
35 #include <media/stagefright/Utils.h>
36 #include <utils/String8.h>
37 #include <utils/misc.h>
39 #include "include/avc_utils.h"
40 #include "ffmpeg_utils/ffmpeg_utils.h"
41 #include "FFmpegExtractor.h"
43 #define DEBUG_READ_ENTRY 0
44 #define DIABLE_VIDEO 0
45 #define DIABLE_AUDIO 0
46 #define WAIT_KEY_PACKET_AFTER_SEEK 1
47 #define DISABLE_NAL_TO_ANNEXB 0
49 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
50 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
52 #define EXTRACTOR_MAX_PROBE_PACKETS 200
54 #define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE)
61 static AVPacket flush_pkt;
65 struct FFmpegExtractor::Track : public MediaSource {
66 Track(const sp<FFmpegExtractor> &extractor, sp<MetaData> meta, bool isAVC,
67 AVStream *stream, PacketQueue *queue);
69 virtual status_t start(MetaData *params);
70 virtual status_t stop();
71 virtual sp<MetaData> getFormat();
73 virtual status_t read(
74 MediaBuffer **buffer, const ReadOptions *options);
80 friend struct FFmpegExtractor;
82 sp<FFmpegExtractor> mExtractor;
85 enum AVMediaType mMediaType;
90 size_t mNALLengthSize;
96 DISALLOW_EVIL_CONSTRUCTORS(Track);
99 ////////////////////////////////////////////////////////////////////////////////
101 FFmpegExtractor::FFmpegExtractor(const sp<DataSource> &source)
102 : mDataSource(source),
103 mReaderThreadStarted(false),
104 mInitCheck(NO_INIT) {
105 LOGV("FFmpegExtractor::FFmpegExtractor");
108 const char *url = mDataSource->getNamURI();
110 LOGI("url is error!");
114 if (!strcmp(url, "-")) {
115 av_strlcpy(mFilename, "pipe:", strlen("pipe:") + 1);
117 av_strlcpy(mFilename, url, strlen(url) + 1);
119 LOGI("url: %s, mFilename: %s", url, mFilename);
123 LOGE("failed to init ffmpeg");
127 // start reader here, as we want to extract extradata from bitstream if no extradata
130 while(mProbePkts <= EXTRACTOR_MAX_PROBE_PACKETS && !mEOF &&
131 (mFormatCtx->pb ? !mFormatCtx->pb->error : 1) &&
132 (mDefersToCreateVideoTrack || mDefersToCreateAudioTrack)) {
133 // FIXME, i am so lazy! Should use pthread_cond_wait to wait conditions
137 LOGV("mProbePkts: %d, mEOF: %d, pb->error(if has): %d, mDefersToCreateVideoTrack: %d, mDefersToCreateAudioTrack: %d",
138 mProbePkts, mEOF, mFormatCtx->pb ? mFormatCtx->pb->error : 0, mDefersToCreateVideoTrack, mDefersToCreateAudioTrack);
143 FFmpegExtractor::~FFmpegExtractor() {
144 LOGV("FFmpegExtractor::~FFmpegExtractor");
146 // stop reader here if no track!
152 size_t FFmpegExtractor::countTracks() {
153 return mInitCheck == OK ? mTracks.size() : 0;
156 sp<MediaSource> FFmpegExtractor::getTrack(size_t index) {
157 LOGV("FFmpegExtractor::getTrack[%d]", index);
159 if (mInitCheck != OK) {
163 if (index >= mTracks.size()) {
167 return mTracks.valueAt(index);
170 sp<MetaData> FFmpegExtractor::getTrackMetaData(size_t index, uint32_t flags) {
171 LOGV("FFmpegExtractor::getTrackMetaData[%d]", index);
173 if (mInitCheck != OK) {
177 if (index >= mTracks.size()) {
181 return mTracks.valueAt(index)->getFormat();
184 sp<MetaData> FFmpegExtractor::getMetaData() {
185 LOGV("FFmpegExtractor::getMetaData");
187 if (mInitCheck != OK) {
191 sp<MetaData> meta = new MetaData;
193 meta->setCString(kKeyMIMEType, "video/ffmpeg");
198 uint32_t FFmpegExtractor::flags() const {
199 LOGV("FFmpegExtractor::flags");
201 if (mInitCheck != OK) {
205 uint32_t flags = CAN_PAUSE;
207 if (mFormatCtx->duration != AV_NOPTS_VALUE) {
208 flags |= CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK;
214 void FFmpegExtractor::packet_queue_init(PacketQueue *q)
216 memset(q, 0, sizeof(PacketQueue));
217 q->mutex = SDL_CreateMutex();
218 q->cond = SDL_CreateCond();
219 packet_queue_put(q, &flush_pkt);
222 void FFmpegExtractor::packet_queue_flush(PacketQueue *q)
224 AVPacketList *pkt, *pkt1;
226 SDL_LockMutex(q->mutex);
227 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
229 av_free_packet(&pkt->pkt);
236 SDL_UnlockMutex(q->mutex);
239 void FFmpegExtractor::packet_queue_end(PacketQueue *q)
241 packet_queue_flush(q);
242 SDL_DestroyMutex(q->mutex);
243 SDL_DestroyCond(q->cond);
246 void FFmpegExtractor::packet_queue_abort(PacketQueue *q)
248 SDL_LockMutex(q->mutex);
250 q->abort_request = 1;
252 SDL_CondSignal(q->cond);
254 SDL_UnlockMutex(q->mutex);
257 int FFmpegExtractor::packet_queue_put(PacketQueue *q, AVPacket *pkt)
261 /* duplicate the packet */
262 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
265 pkt1 = (AVPacketList *)av_malloc(sizeof(AVPacketList));
271 SDL_LockMutex(q->mutex);
277 q->last_pkt->next = pkt1;
280 //q->size += pkt1->pkt.size + sizeof(*pkt1);
281 q->size += pkt1->pkt.size;
282 SDL_CondSignal(q->cond);
284 SDL_UnlockMutex(q->mutex);
288 /* packet queue handling */
289 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
290 int FFmpegExtractor::packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
295 SDL_LockMutex(q->mutex);
298 if (q->abort_request) {
305 q->first_pkt = pkt1->next;
309 //q->size -= pkt1->pkt.size + sizeof(*pkt1);
310 q->size -= pkt1->pkt.size;
319 SDL_CondWait(q->cond, q->mutex);
322 SDL_UnlockMutex(q->mutex);
326 static int lockmgr(void **mtx, enum AVLockOp op)
330 *mtx = (void *)SDL_CreateMutex();
335 return !!SDL_LockMutex((SDL_mutex *)*mtx);
336 case AV_LOCK_RELEASE:
337 return !!SDL_UnlockMutex((SDL_mutex *)*mtx);
338 case AV_LOCK_DESTROY:
339 SDL_DestroyMutex((SDL_mutex *)*mtx);
345 static void EncodeSize14(uint8_t **_ptr, size_t size) {
346 CHECK_LE(size, 0x3fff);
348 uint8_t *ptr = *_ptr;
350 *ptr++ = 0x80 | (size >> 7);
351 *ptr++ = size & 0x7f;
356 static sp<ABuffer> MakeMPEGVideoESDS(const sp<ABuffer> &csd) {
357 sp<ABuffer> esds = new ABuffer(csd->size() + 25);
359 uint8_t *ptr = esds->data();
361 EncodeSize14(&ptr, 22 + csd->size());
363 *ptr++ = 0x00; // ES_ID
366 *ptr++ = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag
369 EncodeSize14(&ptr, 16 + csd->size());
371 *ptr++ = 0x40; // Audio ISO/IEC 14496-3
373 for (size_t i = 0; i < 12; ++i) {
378 EncodeSize14(&ptr, csd->size());
380 memcpy(ptr, csd->data(), csd->size());
385 // Returns the sample rate based on the sampling frequency index
386 static uint32_t get_sample_rate(const uint8_t sf_index)
388 static const uint32_t sample_rates[] =
390 96000, 88200, 64000, 48000, 44100, 32000,
391 24000, 22050, 16000, 12000, 11025, 8000
394 if (sf_index < sizeof(sample_rates) / sizeof(sample_rates[0])) {
395 return sample_rates[sf_index];
401 int FFmpegExtractor::check_extradata(AVCodecContext *avctx)
404 bool *defersToCreateTrack;
405 AVBitStreamFilterContext **bsfc;
408 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
410 defersToCreateTrack = &mDefersToCreateVideoTrack;
411 } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO){
413 defersToCreateTrack = &mDefersToCreateAudioTrack;
417 if (avctx->codec_id == CODEC_ID_MP3 ||
418 avctx->codec_id == CODEC_ID_MP1 ||
419 avctx->codec_id == CODEC_ID_MP2 ||
420 avctx->codec_id == CODEC_ID_H263 ||
421 avctx->codec_id == CODEC_ID_H263P ||
422 avctx->codec_id == CODEC_ID_H263I)
425 // is extradata compatible with android?
426 if (avctx->codec_id != CODEC_ID_AAC) {
427 int is_compatible = is_extradata_compatible_with_android(avctx);
428 if (!is_compatible) {
429 LOGI("%s extradata is not compatible with android, should to extract it from bitstream",
430 av_get_media_type_string(avctx->codec_type));
431 *defersToCreateTrack = true;
432 *bsfc = NULL; // H264 don't need bsfc, only AAC?
438 if (avctx->codec_id == CODEC_ID_AAC) {
439 name = "aac_adtstoasc";
442 if (avctx->extradata_size <= 0) {
443 LOGI("No %s extradata found, should to extract it from bitstream",
444 av_get_media_type_string(avctx->codec_type));
445 *defersToCreateTrack = true;
446 //CHECK(name != NULL);
447 if (!*bsfc && name) {
448 *bsfc = av_bitstream_filter_init(name);
450 LOGE("Cannot open the %s BSF!", name);
451 *defersToCreateTrack = false;
454 LOGV("open the %s bsf", name);
465 int FFmpegExtractor::stream_component_open(int stream_index)
467 AVCodecContext *avctx;
470 bool supported = false;
476 LOGI("stream_index: %d", stream_index);
477 if (stream_index < 0 || stream_index >= mFormatCtx->nb_streams)
479 avctx = mFormatCtx->streams[stream_index]->codec;
481 switch(avctx->codec_id) {
491 case CODEC_ID_MPEG2VIDEO:
503 LOGE("unsupport the codec, id: 0x%0x", avctx->codec_id);
506 LOGV("support the codec");
509 ssize_t index = mTracks.indexOfKey(stream_index);
512 LOGE("this track already exists");
516 mFormatCtx->streams[stream_index]->discard = AVDISCARD_DEFAULT;
519 av_get_codec_tag_string(tagbuf, sizeof(tagbuf), avctx->codec_tag);
520 LOGV("Tag %s/0x%08x with codec id '%d'\n", tagbuf, avctx->codec_tag, avctx->codec_id);
522 switch (avctx->codec_type) {
523 case AVMEDIA_TYPE_VIDEO:
524 if (mVideoStreamIdx == -1)
525 mVideoStreamIdx = stream_index;
526 if (mVideoStream == NULL)
527 mVideoStream = mFormatCtx->streams[stream_index];
528 if (!mVideoQInited) {
529 packet_queue_init(&mVideoQ);
530 mVideoQInited = true;
533 ret = check_extradata(avctx);
536 // disable the stream
537 mVideoStreamIdx = -1;
539 packet_queue_end(&mVideoQ);
540 mVideoQInited = false;
541 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
546 if (avctx->extradata) {
547 LOGV("video stream extradata:");
548 hexdump(avctx->extradata, avctx->extradata_size);
550 LOGV("video stream no extradata, but we can ignore it.");
555 switch(avctx->codec_id) {
559 * http://msdn.microsoft.com/en-us/library/dd757808(v=vs.85).aspx
561 //if (avctx->codec_tag && avctx->codec_tag == AV_RL32("avc1")) {
562 if (avctx->extradata[0] == 1 /* configurationVersion */) {
563 // H.264 bitstream without start codes.
567 if (avctx->width == 0 || avctx->height == 0) {
568 int32_t width, height;
569 sp<ABuffer> seqParamSet = new ABuffer(avctx->extradata_size - 8);
570 memcpy(seqParamSet->data(), avctx->extradata + 8, avctx->extradata_size - 8);
571 FindAVCDimensions(seqParamSet, &width, &height);
572 avctx->width = width;
573 avctx->height = height;
576 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
577 meta->setData(kKeyAVCC, kTypeAVCC, avctx->extradata, avctx->extradata_size);
579 // H.264 bitstream with start codes.
583 /* set NULL to release meta as we will new a meta in MakeAVCCodecSpecificData() fxn */
587 sp<ABuffer> buffer = new ABuffer(avctx->extradata_size);
588 memcpy(buffer->data(), avctx->extradata, avctx->extradata_size);
589 meta = MakeAVCCodecSpecificData(buffer);
594 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
596 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
597 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
598 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
599 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
606 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
608 case CODEC_ID_MPEG2VIDEO:
610 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
612 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
613 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
614 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
615 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
620 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV12);
621 meta->setData(kKeyESDS, kTypeESDS, avctx->extradata, avctx->extradata_size);
624 CHECK(!"Should not be here. Unsupported codec.");
628 LOGI("width: %d, height: %d, bit_rate: %d", avctx->width, avctx->height, avctx->bit_rate);
630 meta->setInt32(kKeyWidth, avctx->width);
631 meta->setInt32(kKeyHeight, avctx->height);
632 meta->setInt32(kKeyBitRate, avctx->bit_rate);
633 if (mFormatCtx->duration != AV_NOPTS_VALUE)
634 meta->setInt64(kKeyDuration, mFormatCtx->duration);
636 LOGV("create a video track");
638 stream_index, new Track(this, meta, isAVC, mVideoStream, &mVideoQ));
640 mDefersToCreateVideoTrack = false;
643 case AVMEDIA_TYPE_AUDIO:
644 if (mAudioStreamIdx == -1)
645 mAudioStreamIdx = stream_index;
646 if (mAudioStream == NULL)
647 mAudioStream = mFormatCtx->streams[stream_index];
648 if (!mAudioQInited) {
649 packet_queue_init(&mAudioQ);
650 mAudioQInited = true;
653 ret = check_extradata(avctx);
656 // disable the stream
657 mAudioStreamIdx = -1;
659 packet_queue_end(&mAudioQ);
660 mAudioQInited = false;
661 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
666 if (avctx->extradata) {
667 LOGV("audio stream extradata:");
668 hexdump(avctx->extradata, avctx->extradata_size);
670 LOGV("audio stream no extradata, but we can ignore it.");
673 switch(avctx->codec_id) {
677 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
678 //meta->setData(kKeyESDS, kTypeESDS, avctx->extradata, avctx->extradata_size);
683 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
684 //meta->setData(kKeyESDS, kTypeESDS, avctx->extradata, avctx->extradata_size);
689 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
690 //meta->setData(kKeyESDS, kTypeESDS, avctx->extradata, avctx->extradata_size);
695 const uint8_t *header;
696 uint8_t profile, sf_index, channel;
698 header = avctx->extradata;
699 CHECK(header != NULL);
701 // AudioSpecificInfo follows
702 // oooo offf fccc c000
703 // o - audioObjectType
704 // f - samplingFreqIndex
706 profile = ((header[0] & 0xf8) >> 3) - 1;
707 sf_index = (header[0] & 0x07) << 1 | (header[1] & 0x80) >> 7;
708 sr = get_sample_rate(sf_index);
710 LOGE("unsupport the sample rate");
713 channel = (header[1] >> 3) & 0xf;
714 LOGV("profile: %d, sf_index: %d, channel: %d", profile, sf_index, channel);
716 meta = MakeAACCodecSpecificData(profile, sf_index, channel);
717 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
720 CHECK(!"Should not be here. Unsupported codec.");
724 LOGI("bit_rate: %d, sample_rate: %d, channels: %d", avctx->bit_rate, avctx->sample_rate, avctx->channels);
726 meta->setInt32(kKeySampleRate, avctx->sample_rate);
727 meta->setInt32(kKeyChannelCount, avctx->channels);
728 meta->setInt32(kKeyBitRate, avctx->bit_rate);
729 if (mFormatCtx->duration != AV_NOPTS_VALUE)
730 meta->setInt64(kKeyDuration, mFormatCtx->duration);
732 if (avctx->codec_id != CODEC_ID_MP3 &&
733 avctx->codec_id != CODEC_ID_MP1 &&
734 avctx->codec_id != CODEC_ID_MP2) {
735 LOGV("audio meta esds:");
736 CHECK(meta->findData(kKeyESDS, &type, &data, &size));
740 LOGV("create a audio track");
742 stream_index, new Track(this, meta, false, mAudioStream, &mAudioQ));
744 mDefersToCreateAudioTrack = false;
747 case AVMEDIA_TYPE_SUBTITLE:
749 CHECK(!"Should not be here. Unsupported media type.");
752 CHECK(!"Should not be here. Unsupported media type.");
758 void FFmpegExtractor::stream_component_close(int stream_index)
760 AVCodecContext *avctx;
762 if (stream_index < 0 || stream_index >= mFormatCtx->nb_streams)
764 avctx = mFormatCtx->streams[stream_index]->codec;
766 switch (avctx->codec_type) {
767 case AVMEDIA_TYPE_VIDEO:
768 LOGV("packet_queue_abort videoq");
769 packet_queue_abort(&mVideoQ);
770 /* wait until the end */
771 while (!mAbortRequest && !mVideoEOSReceived) {
772 LOGV("wait for video received");
775 LOGV("packet_queue_end videoq");
776 packet_queue_end(&mVideoQ);
778 case AVMEDIA_TYPE_AUDIO:
779 LOGV("packet_queue_abort audioq");
780 packet_queue_abort(&mAudioQ);
781 while (!mAbortRequest && !mAudioEOSReceived) {
782 LOGV("wait for audio received");
785 LOGV("packet_queue_end audioq");
786 packet_queue_end(&mAudioQ);
788 case AVMEDIA_TYPE_SUBTITLE:
794 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
795 switch (avctx->codec_type) {
796 case AVMEDIA_TYPE_VIDEO:
798 mVideoStreamIdx = -1;
800 av_bitstream_filter_close(mVideoBsfc);
804 case AVMEDIA_TYPE_AUDIO:
806 mAudioStreamIdx = -1;
808 av_bitstream_filter_close(mAudioBsfc);
812 case AVMEDIA_TYPE_SUBTITLE:
819 void FFmpegExtractor::reachedEOS(enum AVMediaType media_type)
821 Mutex::Autolock autoLock(mLock);
823 if (media_type == AVMEDIA_TYPE_VIDEO) {
824 mVideoEOSReceived = true;
825 } else if (media_type == AVMEDIA_TYPE_AUDIO) {
826 mAudioEOSReceived = true;
830 /* seek in the stream */
831 int FFmpegExtractor::stream_seek(int64_t pos, enum AVMediaType media_type)
833 Mutex::Autolock autoLock(mLock);
835 if (mVideoStreamIdx >= 0 &&
836 mAudioStreamIdx >= 0 &&
837 media_type == AVMEDIA_TYPE_AUDIO &&
838 !mVideoEOSReceived) {
843 if (mAudioStreamIdx >= 0)
844 packet_queue_flush(&mAudioQ);
845 if (mVideoStreamIdx >= 0)
846 packet_queue_flush(&mVideoQ);
849 mSeekFlags &= ~AVSEEK_FLAG_BYTE;
856 int FFmpegExtractor::decode_interrupt_cb(void *ctx)
858 FFmpegExtractor *extrator = static_cast<FFmpegExtractor *>(ctx);
859 return extrator->mAbortRequest;
862 void FFmpegExtractor::print_error_ex(const char *filename, int err)
865 const char *errbuf_ptr = errbuf;
867 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
868 errbuf_ptr = strerror(AVUNERROR(err));
869 LOGI("%s: %s\n", filename, errbuf_ptr);
872 void FFmpegExtractor::setFFmpegDefaultOpts()
886 mSeekByBytes = 0; /* seek by bytes 0=off 1=on -1=auto" */
887 mStartTime = AV_NOPTS_VALUE;
888 mDuration = AV_NOPTS_VALUE;
889 mSeekPos = AV_NOPTS_VALUE;
893 mVideoStreamIdx = -1;
894 mAudioStreamIdx = -1;
897 mVideoQInited = false;
898 mAudioQInited = false;
899 mDefersToCreateVideoTrack = false;
900 mDefersToCreateAudioTrack = false;
913 int FFmpegExtractor::initFFmpeg()
917 int ret = 0, audio_ret = 0, video_ret = 0;
918 int pkt_in_play_range = 0;
919 AVDictionaryEntry *t;
922 int st_index[AVMEDIA_TYPE_NB] = {0};
923 int wanted_stream[AVMEDIA_TYPE_NB] = {0};
924 st_index[AVMEDIA_TYPE_AUDIO] = -1;
925 st_index[AVMEDIA_TYPE_VIDEO] = -1;
926 wanted_stream[AVMEDIA_TYPE_AUDIO] = -1;
927 wanted_stream[AVMEDIA_TYPE_VIDEO] = -1;
929 setFFmpegDefaultOpts();
931 //nam_av_log_set_flags(AV_LOG_SKIP_REPEATED);
932 av_log_set_level(AV_LOG_DEBUG);
933 av_log_set_callback(nam_av_log_callback);
935 /* register all codecs, demux and protocols */
936 avcodec_register_all();
938 avdevice_register_all();
941 avformat_network_init();
945 if (av_lockmgr_register(lockmgr)) {
946 LOGE("could not initialize lock manager!");
949 av_init_packet(&flush_pkt);
950 flush_pkt.data = (uint8_t *)"FLUSH";
953 mFormatCtx = avformat_alloc_context();
954 mFormatCtx->interrupt_callback.callback = decode_interrupt_cb;
955 mFormatCtx->interrupt_callback.opaque = this;
956 LOGV("mFilename: %s", mFilename);
957 err = avformat_open_input(&mFormatCtx, mFilename, NULL, &format_opts);
959 print_error_ex(mFilename, err);
963 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
964 LOGE("Option %s not found.\n", t->key);
965 //ret = AVERROR_OPTION_NOT_FOUND;
971 mFormatCtx->flags |= AVFMT_FLAG_GENPTS;
973 opts = setup_find_stream_info_opts(mFormatCtx, codec_opts);
974 orig_nb_streams = mFormatCtx->nb_streams;
976 err = avformat_find_stream_info(mFormatCtx, opts);
978 LOGE("%s: could not find codec parameters\n", mFilename);
982 for (i = 0; i < orig_nb_streams; i++)
983 av_dict_free(&opts[i]);
987 mFormatCtx->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
989 if (mSeekByBytes < 0)
990 mSeekByBytes = !!(mFormatCtx->iformat->flags & AVFMT_TS_DISCONT);
992 /* if seeking requested, we execute it */
993 if (mStartTime != AV_NOPTS_VALUE) {
996 timestamp = mStartTime;
997 /* add the stream start time */
998 if (mFormatCtx->start_time != AV_NOPTS_VALUE)
999 timestamp += mFormatCtx->start_time;
1000 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, timestamp, INT64_MAX, 0);
1002 LOGE("%s: could not seek to position %0.3f",
1003 mFilename, (double)timestamp / AV_TIME_BASE);
1008 for (i = 0; i < mFormatCtx->nb_streams; i++)
1009 mFormatCtx->streams[i]->discard = AVDISCARD_ALL;
1011 st_index[AVMEDIA_TYPE_VIDEO] =
1012 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_VIDEO,
1013 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
1015 st_index[AVMEDIA_TYPE_AUDIO] =
1016 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_AUDIO,
1017 wanted_stream[AVMEDIA_TYPE_AUDIO],
1018 st_index[AVMEDIA_TYPE_VIDEO],
1021 av_dump_format(mFormatCtx, 0, mFilename, 0);
1024 if (mFormatCtx->duration != AV_NOPTS_VALUE) {
1025 int hours, mins, secs, us;
1026 secs = mFormatCtx->duration / AV_TIME_BASE;
1027 us = mFormatCtx->duration % AV_TIME_BASE;
1032 LOGI("the duration is %02d:%02d:%02d.%02d", hours, mins, secs, (100 * us) / AV_TIME_BASE);
1035 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
1036 audio_ret = stream_component_open(st_index[AVMEDIA_TYPE_AUDIO]);
1039 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
1040 video_ret = stream_component_open(st_index[AVMEDIA_TYPE_VIDEO]);
1043 if ( audio_ret < 0 && video_ret < 0) {
1044 LOGE("%s: could not open codecs\n", mFilename);
1055 void FFmpegExtractor::deInitFFmpeg()
1058 avformat_close_input(&mFormatCtx);
1061 av_lockmgr_register(NULL);
1063 avformat_network_deinit();
1065 av_log(NULL, AV_LOG_QUIET, "%s", "");
1068 status_t FFmpegExtractor::startReaderThread() {
1069 LOGV("Starting reader thread");
1070 Mutex::Autolock autoLock(mLock);
1072 if (mReaderThreadStarted)
1075 pthread_attr_t attr;
1076 pthread_attr_init(&attr);
1077 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
1078 pthread_create(&mReaderThread, &attr, ReaderWrapper, this);
1079 pthread_attr_destroy(&attr);
1080 mReaderThreadStarted = true;
1081 LOGD("Reader thread started");
1086 void FFmpegExtractor::stopReaderThread() {
1087 LOGV("Stopping reader thread");
1088 Mutex::Autolock autoLock(mLock);
1090 if (!mReaderThreadStarted) {
1091 LOGD("Reader thread have been stopped");
1098 pthread_join(mReaderThread, &dummy);
1099 mReaderThreadStarted = false;
1100 LOGD("Reader thread stopped");
1104 void *FFmpegExtractor::ReaderWrapper(void *me) {
1105 ((FFmpegExtractor *)me)->readerEntry();
1110 void FFmpegExtractor::readerEntry() {
1112 AVPacket pkt1, *pkt = &pkt1;
1114 int pkt_in_play_range = 0;
1116 LOGV("FFmpegExtractor::readerEntry");
1118 mVideoEOSReceived = false;
1119 mAudioEOSReceived = false;
1125 if (mPaused != mLastPaused) {
1126 mLastPaused = mPaused;
1128 mReadPauseReturn = av_read_pause(mFormatCtx);
1130 av_read_play(mFormatCtx);
1132 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
1134 (!strcmp(mFormatCtx->iformat->name, "rtsp") ||
1135 (mFormatCtx->pb && !strncmp(mFilename, "mmsh:", 5)))) {
1136 /* wait 10 ms to avoid trying to get another packet */
1144 LOGV("readerEntry, mSeekReq: %d", mSeekReq);
1145 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, mSeekPos, INT64_MAX, mSeekFlags);
1147 LOGE("%s: error while seeking", mFormatCtx->filename);
1149 if (mAudioStreamIdx >= 0) {
1150 packet_queue_flush(&mAudioQ);
1151 packet_queue_put(&mAudioQ, &flush_pkt);
1153 if (mVideoStreamIdx >= 0) {
1154 packet_queue_flush(&mVideoQ);
1155 packet_queue_put(&mVideoQ, &flush_pkt);
1162 /* if the queue are full, no need to read more */
1163 if ( mAudioQ.size + mVideoQ.size > MAX_QUEUE_SIZE
1164 || ( (mAudioQ .size > MIN_AUDIOQ_SIZE || mAudioStreamIdx < 0)
1165 && (mVideoQ .nb_packets > MIN_FRAMES || mVideoStreamIdx < 0))) {
1166 #if DEBUG_READ_ENTRY
1167 LOGV("readerEntry, is full, fuck");
1175 if (mVideoStreamIdx >= 0) {
1176 av_init_packet(pkt);
1179 pkt->stream_index = mVideoStreamIdx;
1180 packet_queue_put(&mVideoQ, pkt);
1182 if (mAudioStreamIdx >= 0) {
1183 av_init_packet(pkt);
1186 pkt->stream_index = mAudioStreamIdx;
1187 packet_queue_put(&mAudioQ, pkt);
1190 #if DEBUG_READ_ENTRY
1191 LOGV("readerEntry, eof = 1, mVideoQ.size: %d, mVideoQ.nb_packets: %d, mAudioQ.size: %d, mAudioQ.nb_packets: %d",
1192 mVideoQ.size, mVideoQ.nb_packets, mAudioQ.size, mAudioQ.nb_packets);
1194 if (mAudioQ.size + mVideoQ.size == 0) {
1195 if (mLoop != 1 && (!mLoop || --mLoop)) {
1196 if (mVideoStreamIdx >= 0) {
1197 stream_seek(mStartTime != AV_NOPTS_VALUE ? mStartTime : 0, AVMEDIA_TYPE_VIDEO);
1198 } else if (mAudioStreamIdx >= 0) {
1199 stream_seek(mStartTime != AV_NOPTS_VALUE ? mStartTime : 0, AVMEDIA_TYPE_AUDIO);
1201 } else if (mAutoExit) {
1210 ret = av_read_frame(mFormatCtx, pkt);
1213 if (ret == AVERROR_EOF || url_feof(mFormatCtx->pb))
1214 if (ret == AVERROR_EOF) {
1215 //LOGV("ret == AVERROR_EOF");
1217 if (url_feof(mFormatCtx->pb)) {
1218 //LOGV("url_feof(mFormatCtx->pb)");
1223 if (mFormatCtx->pb && mFormatCtx->pb->error) {
1224 LOGE("mFormatCtx->pb->error: %d", mFormatCtx->pb->error);
1231 if (pkt->stream_index == mVideoStreamIdx) {
1232 if (mDefersToCreateVideoTrack) {
1233 AVCodecContext *avctx = mFormatCtx->streams[mVideoStreamIdx]->codec;
1235 int i = parser_split(avctx, pkt->data, pkt->size);
1236 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
1237 if (avctx->extradata)
1238 av_freep(&avctx->extradata);
1239 avctx->extradata_size= i;
1240 avctx->extradata = (uint8_t *)av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1241 if (!avctx->extradata) {
1242 //return AVERROR(ENOMEM);
1243 ret = AVERROR(ENOMEM);
1246 // sps + pps(there may be sei in it)
1247 memcpy(avctx->extradata, pkt->data, avctx->extradata_size);
1248 memset(avctx->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1250 av_free_packet(pkt);
1254 stream_component_open(mVideoStreamIdx);
1255 if (!mDefersToCreateVideoTrack)
1256 LOGI("probe packet counter: %d when create video track ok", mProbePkts);
1257 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1258 LOGI("probe packet counter to max: %d, create video track: %d",
1259 mProbePkts, !mDefersToCreateVideoTrack);
1261 } else if (pkt->stream_index == mAudioStreamIdx) {
1265 AVCodecContext *avctx = mFormatCtx->streams[mAudioStreamIdx]->codec;
1266 if (mAudioBsfc && pkt && pkt->data) {
1267 ret = av_bitstream_filter_filter(mAudioBsfc, avctx, NULL, &outbuf, &outbuf_size,
1268 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
1270 if (ret < 0 ||!outbuf_size) {
1271 av_free_packet(pkt);
1274 if (outbuf && outbuf != pkt->data) {
1275 memmove(pkt->data, outbuf, outbuf_size);
1276 pkt->size = outbuf_size;
1279 if (mDefersToCreateAudioTrack) {
1280 if (avctx->extradata_size <= 0) {
1281 av_free_packet(pkt);
1284 stream_component_open(mAudioStreamIdx);
1285 if (!mDefersToCreateAudioTrack)
1286 LOGI("probe packet counter: %d when create audio track ok", mProbePkts);
1287 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1288 LOGI("probe packet counter to max: %d, create audio track: %d",
1289 mProbePkts, !mDefersToCreateAudioTrack);
1293 /* check if packet is in play range specified by user, then queue, otherwise discard */
1294 pkt_in_play_range = mDuration == AV_NOPTS_VALUE ||
1295 (pkt->pts - mFormatCtx->streams[pkt->stream_index]->start_time) *
1296 av_q2d(mFormatCtx->streams[pkt->stream_index]->time_base) -
1297 (double)(mStartTime != AV_NOPTS_VALUE ? mStartTime : 0) / 1000000
1298 <= ((double)mDuration / 1000000);
1299 if (pkt->stream_index == mAudioStreamIdx && pkt_in_play_range) {
1300 packet_queue_put(&mAudioQ, pkt);
1301 } else if (pkt->stream_index == mVideoStreamIdx && pkt_in_play_range) {
1302 packet_queue_put(&mVideoQ, pkt);
1304 av_free_packet(pkt);
1307 /* wait until the end */
1308 while (!mAbortRequest) {
1314 LOGI("reader thread goto end...");
1316 /* close each stream */
1317 if (mAudioStreamIdx >= 0)
1318 stream_component_close(mAudioStreamIdx);
1319 if (mVideoStreamIdx >= 0)
1320 stream_component_close(mVideoStreamIdx);
1322 avformat_close_input(&mFormatCtx);
1326 ////////////////////////////////////////////////////////////////////////////////
1328 FFmpegExtractor::Track::Track(
1329 const sp<FFmpegExtractor> &extractor, sp<MetaData> meta, bool isAVC,
1330 AVStream *stream, PacketQueue *queue)
1331 : mExtractor(extractor),
1338 /* H.264 Video Types */
1340 mNal2AnnexB = false;
1346 CHECK(meta->findData(kKeyAVCC, &type, &data, &size));
1348 const uint8_t *ptr = (const uint8_t *)data;
1351 CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
1353 // The number of bytes used to encode the length of a NAL unit.
1354 mNALLengthSize = 1 + (ptr[4] & 3);
1356 LOGV("the stream is AVC, the length of a NAL unit: %d", mNALLengthSize);
1362 mMediaType = mStream->codec->codec_type;
1365 FFmpegExtractor::Track::~Track() {
1368 status_t FFmpegExtractor::Track::start(MetaData *params) {
1369 Mutex::Autolock autoLock(mLock);
1370 //mExtractor->startReaderThread();
1374 status_t FFmpegExtractor::Track::stop() {
1375 Mutex::Autolock autoLock(mLock);
1376 mExtractor->stopReaderThread();
1380 sp<MetaData> FFmpegExtractor::Track::getFormat() {
1381 Mutex::Autolock autoLock(mLock);
1386 status_t FFmpegExtractor::Track::read(
1387 MediaBuffer **buffer, const ReadOptions *options) {
1390 Mutex::Autolock autoLock(mLock);
1393 bool seeking = false;
1394 bool waitKeyPkt = false;
1395 ReadOptions::SeekMode mode;
1396 int64_t pktTS = AV_NOPTS_VALUE;
1397 int64_t seekTimeUs = AV_NOPTS_VALUE;
1400 status_t status = OK;
1402 if (options && options->getSeekTo(&seekTimeUs, &mode)) {
1403 LOGV("~~~%s seekTimeUs: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1404 if (mExtractor->stream_seek(seekTimeUs, mMediaType) == SEEK)
1409 if (mExtractor->packet_queue_get(mQueue, &pkt, 1) < 0) {
1410 mExtractor->reachedEOS(mMediaType);
1411 return ERROR_END_OF_STREAM;
1415 if (pkt.data != flush_pkt.data) {
1416 av_free_packet(&pkt);
1420 #if WAIT_KEY_PACKET_AFTER_SEEK
1426 if (pkt.data == flush_pkt.data) {
1427 LOGV("read %s flush pkt", av_get_media_type_string(mMediaType));
1428 av_free_packet(&pkt);
1430 } else if (pkt.data == NULL && pkt.size == 0) {
1431 LOGV("read %s eos pkt", av_get_media_type_string(mMediaType));
1432 av_free_packet(&pkt);
1433 mExtractor->reachedEOS(mMediaType);
1434 return ERROR_END_OF_STREAM;
1437 key = pkt.flags & AV_PKT_FLAG_KEY ? 1 : 0;
1441 LOGV("drop the no key packet");
1442 av_free_packet(&pkt);
1445 LOGV("~~~~~~ got the key packet");
1450 MediaBuffer *mediaBuffer = new MediaBuffer(pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
1451 mediaBuffer->meta_data()->clear();
1452 mediaBuffer->set_range(0, pkt.size);
1453 #if DISABLE_NAL_TO_ANNEXB
1454 mNal2AnnexB = false;
1456 if (mIsAVC && mNal2AnnexB) {
1457 /* Convert H.264 NAL format to annex b */
1458 if (mNALLengthSize >= 3 && mNALLengthSize <= 4 )
1460 uint8_t *dst = (uint8_t *)mediaBuffer->data();
1462 /* This only works for NAL sizes 3-4 */
1463 size_t len = pkt.size, i;
1464 uint8_t *ptr = pkt.data;
1465 while (len >= mNALLengthSize) {
1466 uint32_t nal_len = 0;
1467 for( i = 0; i < mNALLengthSize; i++ ) {
1468 nal_len = (nal_len << 8) | ptr[i];
1471 dst[mNALLengthSize - 1] = 1;
1472 if (nal_len > INT_MAX || nal_len > (unsigned int)len) {
1473 status = ERROR_MALFORMED;
1476 dst += mNALLengthSize;
1477 ptr += mNALLengthSize;
1478 len -= mNALLengthSize;
1480 memcpy(dst, ptr, nal_len);
1487 status = ERROR_MALFORMED;
1491 LOGV("status != OK");
1492 mediaBuffer->release();
1494 av_free_packet(&pkt);
1495 return ERROR_MALFORMED;
1498 memcpy(mediaBuffer->data(), pkt.data, pkt.size);
1503 if (pkt.pts == AV_NOPTS_VALUE)
1507 // TODO, Stagefright can't handle negative timestamps
1508 // if needed, work around this by offsetting them manually?
1513 timeUs = (int64_t)(pktTS * av_q2d(mStream->time_base) * 1000000);
1516 LOGV("read %s pkt, size: %d, key: %d, pts: %lld, dts: %lld, timeUs: %llu us (%.2f secs)",
1517 av_get_media_type_string(mMediaType), pkt.size, key, pkt.pts, pkt.dts, timeUs, timeUs/1E6);
1521 // TODO, Stagefright can't handle negative timestamps
1522 // if needed, work around this by offsetting them manually?
1527 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
1528 mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, key);
1530 *buffer = mediaBuffer;
1532 av_free_packet(&pkt);
1537 ////////////////////////////////////////////////////////////////////////////////
1541 const char *extension;
1542 const char *container;
1545 static extmap FILE_EXTS [] = {
1546 {".mp4", MEDIA_MIMETYPE_CONTAINER_MPEG4},
1547 {".3gp", MEDIA_MIMETYPE_CONTAINER_MPEG4},
1548 {".mp3", MEDIA_MIMETYPE_AUDIO_MPEG},
1549 {".mov", MEDIA_MIMETYPE_CONTAINER_MOV},
1550 {".mkv", MEDIA_MIMETYPE_CONTAINER_MATROSKA},
1551 {".ts", MEDIA_MIMETYPE_CONTAINER_TS},
1552 {".avi", MEDIA_MIMETYPE_CONTAINER_AVI},
1554 {".asf", MEDIA_MIMETYPE_CONTAINER_ASF},
1555 {".wmv", MEDIA_MIMETYPE_CONTAINER_WMV},
1556 {".wma", MEDIA_MIMETYPE_CONTAINER_WMA},
1557 {".mpg", MEDIA_MIMETYPE_CONTAINER_MPG},
1558 {".flv", MEDIA_MIMETYPE_CONTAINER_FLV},
1559 {".divx", MEDIA_MIMETYPE_CONTAINER_DIVX},
1560 {".mp2", MEDIA_MIMETYPE_CONTAINER_MP2},
1561 {".ape", MEDIA_MIMETYPE_CONTAINER_APE},
1562 {".rm ", MEDIA_MIMETYPE_CONTAINER_RM},
1563 {".ra", MEDIA_MIMETYPE_CONTAINER_RA},
1567 // TODO: check mFormatCtx->iformat->name?
1569 const sp<DataSource> &source, String8 *mimeType, float *confidence,
1570 sp<AMessage> *meta) {
1571 LOGV("SniffFFMPEG");
1573 const char *uri, *container = NULL;
1575 //av_find_input_format()??
1576 uri = source->getNamURI();
1581 LOGI("ffmpeg uri: %s", uri);
1583 LOGI("list the file extensions suppoted by ffmpeg: ");
1584 LOGI("========================================");
1585 for (i = 0; i < NELEM(FILE_EXTS); ++i) {
1586 LOGV("file_exts[%02d]: %s", i, FILE_EXTS[i].extension);
1588 LOGI("========================================");
1590 int lenURI = strlen(uri);
1591 for (i = 0; i < NELEM(FILE_EXTS); ++i) {
1592 int len = strlen(FILE_EXTS[i].extension);
1593 int start = lenURI - len;
1595 if (!av_strncasecmp(uri + start, FILE_EXTS[i].extension, len)) {
1596 container = FILE_EXTS[i].container;
1602 if (container == NULL)
1605 LOGV("found container: %s", container);
1607 *confidence = 0.88f; // Slightly larger than other extractor's confidence
1608 mimeType->setTo(container);
1610 /* use MPEG4Extractor(not extended extractor) for HTTP source only */
1611 if (!av_strcasecmp(container, MEDIA_MIMETYPE_CONTAINER_MPEG4)
1612 && (source->flags() & DataSource::kIsCachingDataSource)) {
1616 *meta = new AMessage;
1617 (*meta)->setString("extended-extractor", "extended-extractor");
1618 (*meta)->setString("extended-extractor-subtype", "ffmpegextractor");
1623 } // namespace android