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_AC3 ||
421 avctx->codec_id == CODEC_ID_H263 ||
422 avctx->codec_id == CODEC_ID_H263P ||
423 avctx->codec_id == CODEC_ID_H263I)
426 // is extradata compatible with android?
427 if (avctx->codec_id != CODEC_ID_AAC) {
428 int is_compatible = is_extradata_compatible_with_android(avctx);
429 if (!is_compatible) {
430 LOGI("%s extradata is not compatible with android, should to extract it from bitstream",
431 av_get_media_type_string(avctx->codec_type));
432 *defersToCreateTrack = true;
433 *bsfc = NULL; // H264 don't need bsfc, only AAC?
439 if (avctx->codec_id == CODEC_ID_AAC) {
440 name = "aac_adtstoasc";
443 if (avctx->extradata_size <= 0) {
444 LOGI("No %s extradata found, should to extract it from bitstream",
445 av_get_media_type_string(avctx->codec_type));
446 *defersToCreateTrack = true;
447 //CHECK(name != NULL);
448 if (!*bsfc && name) {
449 *bsfc = av_bitstream_filter_init(name);
451 LOGE("Cannot open the %s BSF!", name);
452 *defersToCreateTrack = false;
455 LOGV("open the %s bsf", name);
466 int FFmpegExtractor::stream_component_open(int stream_index)
468 AVCodecContext *avctx;
471 bool supported = false;
477 LOGI("stream_index: %d", stream_index);
478 if (stream_index < 0 || stream_index >= mFormatCtx->nb_streams)
480 avctx = mFormatCtx->streams[stream_index]->codec;
482 switch(avctx->codec_id) {
493 case CODEC_ID_MPEG2VIDEO:
505 LOGE("unsupport the codec, id: 0x%0x", avctx->codec_id);
508 LOGV("support the codec");
511 ssize_t index = mTracks.indexOfKey(stream_index);
514 LOGE("this track already exists");
518 mFormatCtx->streams[stream_index]->discard = AVDISCARD_DEFAULT;
521 av_get_codec_tag_string(tagbuf, sizeof(tagbuf), avctx->codec_tag);
522 LOGV("Tag %s/0x%08x with codec id '%d'\n", tagbuf, avctx->codec_tag, avctx->codec_id);
524 switch (avctx->codec_type) {
525 case AVMEDIA_TYPE_VIDEO:
526 if (mVideoStreamIdx == -1)
527 mVideoStreamIdx = stream_index;
528 if (mVideoStream == NULL)
529 mVideoStream = mFormatCtx->streams[stream_index];
530 if (!mVideoQInited) {
531 packet_queue_init(&mVideoQ);
532 mVideoQInited = true;
535 ret = check_extradata(avctx);
538 // disable the stream
539 mVideoStreamIdx = -1;
541 packet_queue_end(&mVideoQ);
542 mVideoQInited = false;
543 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
548 if (avctx->extradata) {
549 LOGV("video stream extradata:");
550 hexdump(avctx->extradata, avctx->extradata_size);
552 LOGV("video stream no extradata, but we can ignore it.");
557 switch(avctx->codec_id) {
561 * http://msdn.microsoft.com/en-us/library/dd757808(v=vs.85).aspx
563 //if (avctx->codec_tag && avctx->codec_tag == AV_RL32("avc1")) {
564 if (avctx->extradata[0] == 1 /* configurationVersion */) {
565 // H.264 bitstream without start codes.
569 if (avctx->width == 0 || avctx->height == 0) {
570 int32_t width, height;
571 sp<ABuffer> seqParamSet = new ABuffer(avctx->extradata_size - 8);
572 memcpy(seqParamSet->data(), avctx->extradata + 8, avctx->extradata_size - 8);
573 FindAVCDimensions(seqParamSet, &width, &height);
574 avctx->width = width;
575 avctx->height = height;
578 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
579 meta->setData(kKeyAVCC, kTypeAVCC, avctx->extradata, avctx->extradata_size);
581 // H.264 bitstream with start codes.
585 /* set NULL to release meta as we will new a meta in MakeAVCCodecSpecificData() fxn */
589 sp<ABuffer> buffer = new ABuffer(avctx->extradata_size);
590 memcpy(buffer->data(), avctx->extradata, avctx->extradata_size);
591 meta = MakeAVCCodecSpecificData(buffer);
596 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
598 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
599 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
600 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
601 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
608 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
610 case CODEC_ID_MPEG2VIDEO:
612 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
614 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
615 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
616 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
617 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
622 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV12);
623 meta->setData(kKeyESDS, kTypeESDS, avctx->extradata, avctx->extradata_size);
626 CHECK(!"Should not be here. Unsupported codec.");
630 LOGI("width: %d, height: %d, bit_rate: %d", avctx->width, avctx->height, avctx->bit_rate);
632 meta->setInt32(kKeyWidth, avctx->width);
633 meta->setInt32(kKeyHeight, avctx->height);
634 if (avctx->bit_rate > 0)
635 meta->setInt32(kKeyBitRate, avctx->bit_rate);
636 if (mFormatCtx->duration != AV_NOPTS_VALUE)
637 meta->setInt64(kKeyDuration, mFormatCtx->duration);
639 LOGV("create a video track");
641 stream_index, new Track(this, meta, isAVC, mVideoStream, &mVideoQ));
643 mDefersToCreateVideoTrack = false;
646 case AVMEDIA_TYPE_AUDIO:
647 if (mAudioStreamIdx == -1)
648 mAudioStreamIdx = stream_index;
649 if (mAudioStream == NULL)
650 mAudioStream = mFormatCtx->streams[stream_index];
651 if (!mAudioQInited) {
652 packet_queue_init(&mAudioQ);
653 mAudioQInited = true;
656 ret = check_extradata(avctx);
659 // disable the stream
660 mAudioStreamIdx = -1;
662 packet_queue_end(&mAudioQ);
663 mAudioQInited = false;
664 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
669 if (avctx->extradata) {
670 LOGV("audio stream extradata:");
671 hexdump(avctx->extradata, avctx->extradata_size);
673 LOGV("audio stream no extradata, but we can ignore it.");
676 switch(avctx->codec_id) {
680 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
685 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
690 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
695 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
700 const uint8_t *header;
701 uint8_t profile, sf_index, channel;
703 header = avctx->extradata;
704 CHECK(header != NULL);
706 // AudioSpecificInfo follows
707 // oooo offf fccc c000
708 // o - audioObjectType
709 // f - samplingFreqIndex
711 profile = ((header[0] & 0xf8) >> 3) - 1;
712 sf_index = (header[0] & 0x07) << 1 | (header[1] & 0x80) >> 7;
713 sr = get_sample_rate(sf_index);
715 LOGE("unsupport the sample rate");
718 channel = (header[1] >> 3) & 0xf;
719 LOGV("profile: %d, sf_index: %d, channel: %d", profile, sf_index, channel);
721 meta = MakeAACCodecSpecificData(profile, sf_index, channel);
722 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
725 CHECK(!"Should not be here. Unsupported codec.");
729 LOGI("bit_rate: %d, sample_rate: %d, channels: %d", avctx->bit_rate, avctx->sample_rate, avctx->channels);
731 meta->setInt32(kKeySampleRate, avctx->sample_rate);
732 meta->setInt32(kKeyChannelCount, avctx->channels);
733 meta->setInt32(kKeyBitRate, avctx->bit_rate);
734 if (mFormatCtx->duration != AV_NOPTS_VALUE)
735 meta->setInt64(kKeyDuration, mFormatCtx->duration);
737 if (avctx->codec_id != CODEC_ID_MP3 &&
738 avctx->codec_id != CODEC_ID_MP1 &&
739 avctx->codec_id != CODEC_ID_MP2 &&
740 avctx->codec_id != CODEC_ID_AC3) {
741 LOGV("audio meta esds:");
742 CHECK(meta->findData(kKeyESDS, &type, &data, &size));
746 LOGV("create a audio track");
748 stream_index, new Track(this, meta, false, mAudioStream, &mAudioQ));
750 mDefersToCreateAudioTrack = false;
753 case AVMEDIA_TYPE_SUBTITLE:
755 CHECK(!"Should not be here. Unsupported media type.");
758 CHECK(!"Should not be here. Unsupported media type.");
764 void FFmpegExtractor::stream_component_close(int stream_index)
766 AVCodecContext *avctx;
768 if (stream_index < 0 || stream_index >= mFormatCtx->nb_streams)
770 avctx = mFormatCtx->streams[stream_index]->codec;
772 switch (avctx->codec_type) {
773 case AVMEDIA_TYPE_VIDEO:
774 LOGV("packet_queue_abort videoq");
775 packet_queue_abort(&mVideoQ);
776 /* wait until the end */
777 while (!mAbortRequest && !mVideoEOSReceived) {
778 LOGV("wait for video received");
781 LOGV("packet_queue_end videoq");
782 packet_queue_end(&mVideoQ);
784 case AVMEDIA_TYPE_AUDIO:
785 LOGV("packet_queue_abort audioq");
786 packet_queue_abort(&mAudioQ);
787 while (!mAbortRequest && !mAudioEOSReceived) {
788 LOGV("wait for audio received");
791 LOGV("packet_queue_end audioq");
792 packet_queue_end(&mAudioQ);
794 case AVMEDIA_TYPE_SUBTITLE:
800 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
801 switch (avctx->codec_type) {
802 case AVMEDIA_TYPE_VIDEO:
804 mVideoStreamIdx = -1;
806 av_bitstream_filter_close(mVideoBsfc);
810 case AVMEDIA_TYPE_AUDIO:
812 mAudioStreamIdx = -1;
814 av_bitstream_filter_close(mAudioBsfc);
818 case AVMEDIA_TYPE_SUBTITLE:
825 void FFmpegExtractor::reachedEOS(enum AVMediaType media_type)
827 Mutex::Autolock autoLock(mLock);
829 if (media_type == AVMEDIA_TYPE_VIDEO) {
830 mVideoEOSReceived = true;
831 } else if (media_type == AVMEDIA_TYPE_AUDIO) {
832 mAudioEOSReceived = true;
836 /* seek in the stream */
837 int FFmpegExtractor::stream_seek(int64_t pos, enum AVMediaType media_type)
839 Mutex::Autolock autoLock(mLock);
841 if (mVideoStreamIdx >= 0 &&
842 mAudioStreamIdx >= 0 &&
843 media_type == AVMEDIA_TYPE_AUDIO &&
844 !mVideoEOSReceived) {
849 if (mAudioStreamIdx >= 0)
850 packet_queue_flush(&mAudioQ);
851 if (mVideoStreamIdx >= 0)
852 packet_queue_flush(&mVideoQ);
855 mSeekFlags &= ~AVSEEK_FLAG_BYTE;
862 int FFmpegExtractor::decode_interrupt_cb(void *ctx)
864 FFmpegExtractor *extrator = static_cast<FFmpegExtractor *>(ctx);
865 return extrator->mAbortRequest;
868 void FFmpegExtractor::print_error_ex(const char *filename, int err)
871 const char *errbuf_ptr = errbuf;
873 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
874 errbuf_ptr = strerror(AVUNERROR(err));
875 LOGI("%s: %s\n", filename, errbuf_ptr);
878 void FFmpegExtractor::setFFmpegDefaultOpts()
892 mSeekByBytes = 0; /* seek by bytes 0=off 1=on -1=auto" */
893 mStartTime = AV_NOPTS_VALUE;
894 mDuration = AV_NOPTS_VALUE;
895 mSeekPos = AV_NOPTS_VALUE;
899 mVideoStreamIdx = -1;
900 mAudioStreamIdx = -1;
903 mVideoQInited = false;
904 mAudioQInited = false;
905 mDefersToCreateVideoTrack = false;
906 mDefersToCreateAudioTrack = false;
919 int FFmpegExtractor::initStreams()
924 int ret = 0, audio_ret = 0, video_ret = 0;
925 int pkt_in_play_range = 0;
926 AVDictionaryEntry *t;
929 int st_index[AVMEDIA_TYPE_NB] = {0};
930 int wanted_stream[AVMEDIA_TYPE_NB] = {0};
931 st_index[AVMEDIA_TYPE_AUDIO] = -1;
932 st_index[AVMEDIA_TYPE_VIDEO] = -1;
933 wanted_stream[AVMEDIA_TYPE_AUDIO] = -1;
934 wanted_stream[AVMEDIA_TYPE_VIDEO] = -1;
936 setFFmpegDefaultOpts();
938 status = initFFmpeg();
944 av_init_packet(&flush_pkt);
945 flush_pkt.data = (uint8_t *)"FLUSH";
948 mFormatCtx = avformat_alloc_context();
949 mFormatCtx->interrupt_callback.callback = decode_interrupt_cb;
950 mFormatCtx->interrupt_callback.opaque = this;
951 LOGV("mFilename: %s", mFilename);
952 err = avformat_open_input(&mFormatCtx, mFilename, NULL, &format_opts);
954 print_error_ex(mFilename, err);
958 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
959 LOGE("Option %s not found.\n", t->key);
960 //ret = AVERROR_OPTION_NOT_FOUND;
966 mFormatCtx->flags |= AVFMT_FLAG_GENPTS;
968 opts = setup_find_stream_info_opts(mFormatCtx, codec_opts);
969 orig_nb_streams = mFormatCtx->nb_streams;
971 err = avformat_find_stream_info(mFormatCtx, opts);
973 LOGE("%s: could not find codec parameters\n", mFilename);
977 for (i = 0; i < orig_nb_streams; i++)
978 av_dict_free(&opts[i]);
982 mFormatCtx->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
984 if (mSeekByBytes < 0)
985 mSeekByBytes = !!(mFormatCtx->iformat->flags & AVFMT_TS_DISCONT);
987 /* if seeking requested, we execute it */
988 if (mStartTime != AV_NOPTS_VALUE) {
991 timestamp = mStartTime;
992 /* add the stream start time */
993 if (mFormatCtx->start_time != AV_NOPTS_VALUE)
994 timestamp += mFormatCtx->start_time;
995 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, timestamp, INT64_MAX, 0);
997 LOGE("%s: could not seek to position %0.3f",
998 mFilename, (double)timestamp / AV_TIME_BASE);
1003 for (i = 0; i < mFormatCtx->nb_streams; i++)
1004 mFormatCtx->streams[i]->discard = AVDISCARD_ALL;
1006 st_index[AVMEDIA_TYPE_VIDEO] =
1007 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_VIDEO,
1008 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
1010 st_index[AVMEDIA_TYPE_AUDIO] =
1011 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_AUDIO,
1012 wanted_stream[AVMEDIA_TYPE_AUDIO],
1013 st_index[AVMEDIA_TYPE_VIDEO],
1016 av_dump_format(mFormatCtx, 0, mFilename, 0);
1019 if (mFormatCtx->duration != AV_NOPTS_VALUE) {
1020 int hours, mins, secs, us;
1021 secs = mFormatCtx->duration / AV_TIME_BASE;
1022 us = mFormatCtx->duration % AV_TIME_BASE;
1027 LOGI("the duration is %02d:%02d:%02d.%02d", hours, mins, secs, (100 * us) / AV_TIME_BASE);
1030 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
1031 audio_ret = stream_component_open(st_index[AVMEDIA_TYPE_AUDIO]);
1034 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
1035 video_ret = stream_component_open(st_index[AVMEDIA_TYPE_VIDEO]);
1038 if ( audio_ret < 0 && video_ret < 0) {
1039 LOGE("%s: could not open codecs\n", mFilename);
1050 void FFmpegExtractor::deInitStreams()
1053 avformat_close_input(&mFormatCtx);
1059 status_t FFmpegExtractor::startReaderThread() {
1060 LOGV("Starting reader thread");
1061 Mutex::Autolock autoLock(mLock);
1063 if (mReaderThreadStarted)
1066 pthread_attr_t attr;
1067 pthread_attr_init(&attr);
1068 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
1069 pthread_create(&mReaderThread, &attr, ReaderWrapper, this);
1070 pthread_attr_destroy(&attr);
1071 mReaderThreadStarted = true;
1072 LOGD("Reader thread started");
1077 void FFmpegExtractor::stopReaderThread() {
1078 LOGV("Stopping reader thread");
1079 Mutex::Autolock autoLock(mLock);
1081 if (!mReaderThreadStarted) {
1082 LOGD("Reader thread have been stopped");
1089 pthread_join(mReaderThread, &dummy);
1090 mReaderThreadStarted = false;
1091 LOGD("Reader thread stopped");
1095 void *FFmpegExtractor::ReaderWrapper(void *me) {
1096 ((FFmpegExtractor *)me)->readerEntry();
1101 void FFmpegExtractor::readerEntry() {
1103 AVPacket pkt1, *pkt = &pkt1;
1105 int pkt_in_play_range = 0;
1107 LOGV("FFmpegExtractor::readerEntry");
1109 mVideoEOSReceived = false;
1110 mAudioEOSReceived = false;
1116 if (mPaused != mLastPaused) {
1117 mLastPaused = mPaused;
1119 mReadPauseReturn = av_read_pause(mFormatCtx);
1121 av_read_play(mFormatCtx);
1123 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
1125 (!strcmp(mFormatCtx->iformat->name, "rtsp") ||
1126 (mFormatCtx->pb && !strncmp(mFilename, "mmsh:", 5)))) {
1127 /* wait 10 ms to avoid trying to get another packet */
1135 LOGV("readerEntry, mSeekReq: %d", mSeekReq);
1136 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, mSeekPos, INT64_MAX, mSeekFlags);
1138 LOGE("%s: error while seeking", mFormatCtx->filename);
1140 if (mAudioStreamIdx >= 0) {
1141 packet_queue_flush(&mAudioQ);
1142 packet_queue_put(&mAudioQ, &flush_pkt);
1144 if (mVideoStreamIdx >= 0) {
1145 packet_queue_flush(&mVideoQ);
1146 packet_queue_put(&mVideoQ, &flush_pkt);
1153 /* if the queue are full, no need to read more */
1154 if ( mAudioQ.size + mVideoQ.size > MAX_QUEUE_SIZE
1155 || ( (mAudioQ .size > MIN_AUDIOQ_SIZE || mAudioStreamIdx < 0)
1156 && (mVideoQ .nb_packets > MIN_FRAMES || mVideoStreamIdx < 0))) {
1157 #if DEBUG_READ_ENTRY
1158 LOGV("readerEntry, is full, fuck");
1166 if (mVideoStreamIdx >= 0) {
1167 av_init_packet(pkt);
1170 pkt->stream_index = mVideoStreamIdx;
1171 packet_queue_put(&mVideoQ, pkt);
1173 if (mAudioStreamIdx >= 0) {
1174 av_init_packet(pkt);
1177 pkt->stream_index = mAudioStreamIdx;
1178 packet_queue_put(&mAudioQ, pkt);
1181 #if DEBUG_READ_ENTRY
1182 LOGV("readerEntry, eof = 1, mVideoQ.size: %d, mVideoQ.nb_packets: %d, mAudioQ.size: %d, mAudioQ.nb_packets: %d",
1183 mVideoQ.size, mVideoQ.nb_packets, mAudioQ.size, mAudioQ.nb_packets);
1185 if (mAudioQ.size + mVideoQ.size == 0) {
1186 if (mLoop != 1 && (!mLoop || --mLoop)) {
1187 if (mVideoStreamIdx >= 0) {
1188 stream_seek(mStartTime != AV_NOPTS_VALUE ? mStartTime : 0, AVMEDIA_TYPE_VIDEO);
1189 } else if (mAudioStreamIdx >= 0) {
1190 stream_seek(mStartTime != AV_NOPTS_VALUE ? mStartTime : 0, AVMEDIA_TYPE_AUDIO);
1192 } else if (mAutoExit) {
1201 ret = av_read_frame(mFormatCtx, pkt);
1204 if (ret == AVERROR_EOF || url_feof(mFormatCtx->pb))
1205 if (ret == AVERROR_EOF) {
1206 //LOGV("ret == AVERROR_EOF");
1208 if (url_feof(mFormatCtx->pb)) {
1209 //LOGV("url_feof(mFormatCtx->pb)");
1214 if (mFormatCtx->pb && mFormatCtx->pb->error) {
1215 LOGE("mFormatCtx->pb->error: %d", mFormatCtx->pb->error);
1222 if (pkt->stream_index == mVideoStreamIdx) {
1223 if (mDefersToCreateVideoTrack) {
1224 AVCodecContext *avctx = mFormatCtx->streams[mVideoStreamIdx]->codec;
1226 int i = parser_split(avctx, pkt->data, pkt->size);
1227 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
1228 if (avctx->extradata)
1229 av_freep(&avctx->extradata);
1230 avctx->extradata_size= i;
1231 avctx->extradata = (uint8_t *)av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1232 if (!avctx->extradata) {
1233 //return AVERROR(ENOMEM);
1234 ret = AVERROR(ENOMEM);
1237 // sps + pps(there may be sei in it)
1238 memcpy(avctx->extradata, pkt->data, avctx->extradata_size);
1239 memset(avctx->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1241 av_free_packet(pkt);
1245 stream_component_open(mVideoStreamIdx);
1246 if (!mDefersToCreateVideoTrack)
1247 LOGI("probe packet counter: %d when create video track ok", mProbePkts);
1248 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1249 LOGI("probe packet counter to max: %d, create video track: %d",
1250 mProbePkts, !mDefersToCreateVideoTrack);
1252 } else if (pkt->stream_index == mAudioStreamIdx) {
1256 AVCodecContext *avctx = mFormatCtx->streams[mAudioStreamIdx]->codec;
1257 if (mAudioBsfc && pkt && pkt->data) {
1258 ret = av_bitstream_filter_filter(mAudioBsfc, avctx, NULL, &outbuf, &outbuf_size,
1259 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
1261 if (ret < 0 ||!outbuf_size) {
1262 av_free_packet(pkt);
1265 if (outbuf && outbuf != pkt->data) {
1266 memmove(pkt->data, outbuf, outbuf_size);
1267 pkt->size = outbuf_size;
1270 if (mDefersToCreateAudioTrack) {
1271 if (avctx->extradata_size <= 0) {
1272 av_free_packet(pkt);
1275 stream_component_open(mAudioStreamIdx);
1276 if (!mDefersToCreateAudioTrack)
1277 LOGI("probe packet counter: %d when create audio track ok", mProbePkts);
1278 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1279 LOGI("probe packet counter to max: %d, create audio track: %d",
1280 mProbePkts, !mDefersToCreateAudioTrack);
1284 /* check if packet is in play range specified by user, then queue, otherwise discard */
1285 pkt_in_play_range = mDuration == AV_NOPTS_VALUE ||
1286 (pkt->pts - mFormatCtx->streams[pkt->stream_index]->start_time) *
1287 av_q2d(mFormatCtx->streams[pkt->stream_index]->time_base) -
1288 (double)(mStartTime != AV_NOPTS_VALUE ? mStartTime : 0) / 1000000
1289 <= ((double)mDuration / 1000000);
1290 if (pkt->stream_index == mAudioStreamIdx && pkt_in_play_range) {
1291 packet_queue_put(&mAudioQ, pkt);
1292 } else if (pkt->stream_index == mVideoStreamIdx && pkt_in_play_range) {
1293 packet_queue_put(&mVideoQ, pkt);
1295 av_free_packet(pkt);
1298 /* wait until the end */
1299 while (!mAbortRequest) {
1305 LOGI("reader thread goto end...");
1307 /* close each stream */
1308 if (mAudioStreamIdx >= 0)
1309 stream_component_close(mAudioStreamIdx);
1310 if (mVideoStreamIdx >= 0)
1311 stream_component_close(mVideoStreamIdx);
1313 avformat_close_input(&mFormatCtx);
1317 ////////////////////////////////////////////////////////////////////////////////
1319 FFmpegExtractor::Track::Track(
1320 const sp<FFmpegExtractor> &extractor, sp<MetaData> meta, bool isAVC,
1321 AVStream *stream, PacketQueue *queue)
1322 : mExtractor(extractor),
1329 /* H.264 Video Types */
1331 mNal2AnnexB = false;
1337 CHECK(meta->findData(kKeyAVCC, &type, &data, &size));
1339 const uint8_t *ptr = (const uint8_t *)data;
1342 CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
1344 // The number of bytes used to encode the length of a NAL unit.
1345 mNALLengthSize = 1 + (ptr[4] & 3);
1347 LOGV("the stream is AVC, the length of a NAL unit: %d", mNALLengthSize);
1353 mMediaType = mStream->codec->codec_type;
1356 FFmpegExtractor::Track::~Track() {
1359 status_t FFmpegExtractor::Track::start(MetaData *params) {
1360 Mutex::Autolock autoLock(mLock);
1361 //mExtractor->startReaderThread();
1365 status_t FFmpegExtractor::Track::stop() {
1366 Mutex::Autolock autoLock(mLock);
1367 mExtractor->stopReaderThread();
1371 sp<MetaData> FFmpegExtractor::Track::getFormat() {
1372 Mutex::Autolock autoLock(mLock);
1377 status_t FFmpegExtractor::Track::read(
1378 MediaBuffer **buffer, const ReadOptions *options) {
1381 Mutex::Autolock autoLock(mLock);
1384 bool seeking = false;
1385 bool waitKeyPkt = false;
1386 ReadOptions::SeekMode mode;
1387 int64_t pktTS = AV_NOPTS_VALUE;
1388 int64_t seekTimeUs = AV_NOPTS_VALUE;
1391 status_t status = OK;
1393 if (options && options->getSeekTo(&seekTimeUs, &mode)) {
1394 LOGV("~~~%s seekTimeUs: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1395 if (mExtractor->stream_seek(seekTimeUs, mMediaType) == SEEK)
1400 if (mExtractor->packet_queue_get(mQueue, &pkt, 1) < 0) {
1401 mExtractor->reachedEOS(mMediaType);
1402 return ERROR_END_OF_STREAM;
1406 if (pkt.data != flush_pkt.data) {
1407 av_free_packet(&pkt);
1411 #if WAIT_KEY_PACKET_AFTER_SEEK
1417 if (pkt.data == flush_pkt.data) {
1418 LOGV("read %s flush pkt", av_get_media_type_string(mMediaType));
1419 av_free_packet(&pkt);
1421 } else if (pkt.data == NULL && pkt.size == 0) {
1422 LOGV("read %s eos pkt", av_get_media_type_string(mMediaType));
1423 av_free_packet(&pkt);
1424 mExtractor->reachedEOS(mMediaType);
1425 return ERROR_END_OF_STREAM;
1428 key = pkt.flags & AV_PKT_FLAG_KEY ? 1 : 0;
1432 LOGV("drop the no key packet");
1433 av_free_packet(&pkt);
1436 LOGV("~~~~~~ got the key packet");
1441 MediaBuffer *mediaBuffer = new MediaBuffer(pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
1442 mediaBuffer->meta_data()->clear();
1443 mediaBuffer->set_range(0, pkt.size);
1444 #if DISABLE_NAL_TO_ANNEXB
1445 mNal2AnnexB = false;
1447 if (mIsAVC && mNal2AnnexB) {
1448 /* Convert H.264 NAL format to annex b */
1449 if (mNALLengthSize >= 3 && mNALLengthSize <= 4 )
1451 uint8_t *dst = (uint8_t *)mediaBuffer->data();
1453 /* This only works for NAL sizes 3-4 */
1454 size_t len = pkt.size, i;
1455 uint8_t *ptr = pkt.data;
1456 while (len >= mNALLengthSize) {
1457 uint32_t nal_len = 0;
1458 for( i = 0; i < mNALLengthSize; i++ ) {
1459 nal_len = (nal_len << 8) | ptr[i];
1462 dst[mNALLengthSize - 1] = 1;
1463 if (nal_len > INT_MAX || nal_len > (unsigned int)len) {
1464 status = ERROR_MALFORMED;
1467 dst += mNALLengthSize;
1468 ptr += mNALLengthSize;
1469 len -= mNALLengthSize;
1471 memcpy(dst, ptr, nal_len);
1478 status = ERROR_MALFORMED;
1482 LOGV("status != OK");
1483 mediaBuffer->release();
1485 av_free_packet(&pkt);
1486 return ERROR_MALFORMED;
1489 memcpy(mediaBuffer->data(), pkt.data, pkt.size);
1494 if (pkt.pts == AV_NOPTS_VALUE)
1498 // TODO, Stagefright can't handle negative timestamps
1499 // if needed, work around this by offsetting them manually?
1504 timeUs = (int64_t)(pktTS * av_q2d(mStream->time_base) * 1000000);
1507 LOGV("read %s pkt, size: %d, key: %d, pts: %lld, dts: %lld, timeUs: %llu us (%.2f secs)",
1508 av_get_media_type_string(mMediaType), pkt.size, key, pkt.pts, pkt.dts, timeUs, timeUs/1E6);
1512 // TODO, Stagefright can't handle negative timestamps
1513 // if needed, work around this by offsetting them manually?
1518 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
1519 mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, key);
1521 *buffer = mediaBuffer;
1523 av_free_packet(&pkt);
1528 ////////////////////////////////////////////////////////////////////////////////
1530 // LegacySniffFFMPEG
1532 const char *extension;
1533 const char *container;
1536 static extmap FILE_EXTS[] = {
1537 {".mp4", MEDIA_MIMETYPE_CONTAINER_MPEG4},
1538 {".3gp", MEDIA_MIMETYPE_CONTAINER_MPEG4},
1539 {".mp3", MEDIA_MIMETYPE_AUDIO_MPEG},
1540 {".mov", MEDIA_MIMETYPE_CONTAINER_MOV},
1541 {".mkv", MEDIA_MIMETYPE_CONTAINER_MATROSKA},
1542 {".ts", MEDIA_MIMETYPE_CONTAINER_TS},
1543 {".avi", MEDIA_MIMETYPE_CONTAINER_AVI},
1545 {".asf", MEDIA_MIMETYPE_CONTAINER_ASF},
1546 {".wmv", MEDIA_MIMETYPE_CONTAINER_WMV},
1547 {".wma", MEDIA_MIMETYPE_CONTAINER_WMA},
1548 {".mpg", MEDIA_MIMETYPE_CONTAINER_MPG},
1549 {".flv", MEDIA_MIMETYPE_CONTAINER_FLV},
1550 {".divx", MEDIA_MIMETYPE_CONTAINER_DIVX},
1551 {".mp2", MEDIA_MIMETYPE_CONTAINER_MP2},
1552 {".ape", MEDIA_MIMETYPE_CONTAINER_APE},
1553 {".rm ", MEDIA_MIMETYPE_CONTAINER_RM},
1554 {".ra", MEDIA_MIMETYPE_CONTAINER_RA},
1558 const char *LegacySniffFFMPEG(const char * uri)
1561 const char *container = NULL;
1563 LOGI("list the file extensions suppoted by ffmpeg: ");
1564 LOGI("========================================");
1565 for (i = 0; i < NELEM(FILE_EXTS); ++i) {
1566 LOGV("file_exts[%02d]: %s", i, FILE_EXTS[i].extension);
1568 LOGI("========================================");
1570 int lenURI = strlen(uri);
1571 for (i = 0; i < NELEM(FILE_EXTS); ++i) {
1572 int len = strlen(FILE_EXTS[i].extension);
1573 int start = lenURI - len;
1575 if (!av_strncasecmp(uri + start, FILE_EXTS[i].extension, len)) {
1576 container = FILE_EXTS[i].container;
1585 // BetterSniffFFMPEG
1588 const char *container;
1591 static formatmap FILE_FORMATS[] = {
1592 {"mpegts", MEDIA_MIMETYPE_CONTAINER_TS},
1593 {"mov,mp4,m4a,3gp,3g2,mj2", MEDIA_MIMETYPE_CONTAINER_MOV},
1596 const char *BetterSniffFFMPEG(const char * uri)
1599 const char *container = NULL;
1600 AVFormatContext *ic = NULL;
1602 status_t status = initFFmpeg();
1604 LOGE("could not init ffmpeg");
1608 ic = avformat_alloc_context();
1609 avformat_open_input(&ic, uri, NULL, NULL);
1611 av_dump_format(ic, 0, uri, 0);
1613 LOGI("FFmpegExtrator, uri: %s, format: %s", uri, ic->iformat->name);
1615 LOGI("list the format suppoted by ffmpeg: ");
1616 LOGI("========================================");
1617 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1618 LOGV("format_names[%02d]: %s", i, FILE_FORMATS[i].format);
1620 LOGI("========================================");
1622 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1623 int len = strlen(FILE_FORMATS[i].format);
1624 if (!av_strncasecmp(ic->iformat->name, FILE_FORMATS[i].format, len)) {
1625 container = FILE_FORMATS[i].container;
1630 avformat_close_input(&ic);
1637 const sp<DataSource> &source, String8 *mimeType, float *confidence,
1638 sp<AMessage> *meta) {
1639 LOGV("SniffFFMPEG");
1640 const char *uri, *container = NULL;
1642 uri = source->getNamURI();
1647 LOGI("ffmpeg uri: %s", uri);
1649 container = BetterSniffFFMPEG(uri);
1651 LOGW("sniff through LegacySniffFFMPEG, only check the file extension");
1652 container = LegacySniffFFMPEG(uri);
1655 if (container == NULL)
1658 LOGV("found container: %s", container);
1660 *confidence = 0.88f; // Slightly larger than other extractor's confidence
1661 mimeType->setTo(container);
1663 /* use MPEG4Extractor(not extended extractor) for HTTP source only */
1664 if (!av_strcasecmp(container, MEDIA_MIMETYPE_CONTAINER_MPEG4)
1665 && (source->flags() & DataSource::kIsCachingDataSource)) {
1669 *meta = new AMessage;
1670 (*meta)->setString("extended-extractor", "extended-extractor");
1671 (*meta)->setString("extended-extractor-subtype", "ffmpegextractor");
1676 } // namespace android