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 "utils/common_utils.h"
41 #include "utils/ffmpeg_utils.h"
42 #include "FFmpegExtractor.h"
44 #define DEBUG_READ_ENTRY 0
45 #define DEBUG_DISABLE_VIDEO 0
46 #define DEBUG_DISABLE_AUDIO 0
47 #define WAIT_KEY_PACKET_AFTER_SEEK 1
48 #define DISABLE_NAL_TO_ANNEXB 0
50 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
51 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
53 #define EXTRACTOR_MAX_PROBE_PACKETS 200
55 #define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE)
62 static AVPacket flush_pkt;
66 struct FFmpegExtractor::Track : public MediaSource {
67 Track(const sp<FFmpegExtractor> &extractor, sp<MetaData> meta, bool isAVC,
68 AVStream *stream, PacketQueue *queue);
70 virtual status_t start(MetaData *params);
71 virtual status_t stop();
72 virtual sp<MetaData> getFormat();
74 virtual status_t read(
75 MediaBuffer **buffer, const ReadOptions *options);
81 friend struct FFmpegExtractor;
83 sp<FFmpegExtractor> mExtractor;
86 enum AVMediaType mMediaType;
91 size_t mNALLengthSize;
97 DISALLOW_EVIL_CONSTRUCTORS(Track);
100 ////////////////////////////////////////////////////////////////////////////////
102 FFmpegExtractor::FFmpegExtractor(const sp<DataSource> &source)
103 : mDataSource(source),
104 mReaderThreadStarted(false),
105 mInitCheck(NO_INIT) {
106 LOGV("FFmpegExtractor::FFmpegExtractor");
109 const char *url = mDataSource->getNamURI();
111 LOGI("url is error!");
115 if (!strcmp(url, "-")) {
116 av_strlcpy(mFilename, "pipe:", strlen("pipe:") + 1);
118 av_strlcpy(mFilename, url, strlen(url) + 1);
120 LOGI("url: %s, mFilename: %s", url, mFilename);
124 LOGE("failed to init ffmpeg");
128 // start reader here, as we want to extract extradata from bitstream if no extradata
131 while(mProbePkts <= EXTRACTOR_MAX_PROBE_PACKETS && !mEOF &&
132 (mFormatCtx->pb ? !mFormatCtx->pb->error : 1) &&
133 (mDefersToCreateVideoTrack || mDefersToCreateAudioTrack)) {
134 // FIXME, i am so lazy! Should use pthread_cond_wait to wait conditions
138 LOGV("mProbePkts: %d, mEOF: %d, pb->error(if has): %d, mDefersToCreateVideoTrack: %d, mDefersToCreateAudioTrack: %d",
139 mProbePkts, mEOF, mFormatCtx->pb ? mFormatCtx->pb->error : 0, mDefersToCreateVideoTrack, mDefersToCreateAudioTrack);
144 FFmpegExtractor::~FFmpegExtractor() {
145 LOGV("FFmpegExtractor::~FFmpegExtractor");
147 // stop reader here if no track!
153 size_t FFmpegExtractor::countTracks() {
154 return mInitCheck == OK ? mTracks.size() : 0;
157 sp<MediaSource> FFmpegExtractor::getTrack(size_t index) {
158 LOGV("FFmpegExtractor::getTrack[%d]", index);
160 if (mInitCheck != OK) {
164 if (index >= mTracks.size()) {
168 return mTracks.valueAt(index);
171 sp<MetaData> FFmpegExtractor::getTrackMetaData(size_t index, uint32_t flags) {
172 LOGV("FFmpegExtractor::getTrackMetaData[%d]", index);
174 if (mInitCheck != OK) {
178 if (index >= mTracks.size()) {
182 return mTracks.valueAt(index)->getFormat();
185 sp<MetaData> FFmpegExtractor::getMetaData() {
186 LOGV("FFmpegExtractor::getMetaData");
188 if (mInitCheck != OK) {
192 sp<MetaData> meta = new MetaData;
194 meta->setCString(kKeyMIMEType, "video/ffmpeg");
199 uint32_t FFmpegExtractor::flags() const {
200 LOGV("FFmpegExtractor::flags");
202 if (mInitCheck != OK) {
206 uint32_t flags = CAN_PAUSE;
208 if (mFormatCtx->duration != AV_NOPTS_VALUE) {
209 flags |= CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK;
215 void FFmpegExtractor::packet_queue_init(PacketQueue *q)
217 memset(q, 0, sizeof(PacketQueue));
218 pthread_mutex_init(&q->mutex, NULL);
219 pthread_cond_init(&q->cond, NULL);
220 packet_queue_put(q, &flush_pkt);
223 void FFmpegExtractor::packet_queue_flush(PacketQueue *q)
225 AVPacketList *pkt, *pkt1;
227 pthread_mutex_lock(&q->mutex);
228 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
230 av_free_packet(&pkt->pkt);
237 pthread_mutex_unlock(&q->mutex);
240 void FFmpegExtractor::packet_queue_end(PacketQueue *q)
242 packet_queue_flush(q);
245 void FFmpegExtractor::packet_queue_abort(PacketQueue *q)
247 pthread_mutex_lock(&q->mutex);
249 q->abort_request = 1;
251 pthread_cond_signal(&q->cond);
253 pthread_mutex_unlock(&q->mutex);
256 int FFmpegExtractor::packet_queue_put(PacketQueue *q, AVPacket *pkt)
260 /* duplicate the packet */
261 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
264 pkt1 = (AVPacketList *)av_malloc(sizeof(AVPacketList));
270 pthread_mutex_lock(&q->mutex);
276 q->last_pkt->next = pkt1;
279 //q->size += pkt1->pkt.size + sizeof(*pkt1);
280 q->size += pkt1->pkt.size;
281 pthread_cond_signal(&q->cond);
283 pthread_mutex_unlock(&q->mutex);
287 /* packet queue handling */
288 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
289 int FFmpegExtractor::packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
294 pthread_mutex_lock(&q->mutex);
297 if (q->abort_request) {
304 q->first_pkt = pkt1->next;
308 //q->size -= pkt1->pkt.size + sizeof(*pkt1);
309 q->size -= pkt1->pkt.size;
318 pthread_cond_wait(&q->cond, &q->mutex);
321 pthread_mutex_unlock(&q->mutex);
325 static void EncodeSize14(uint8_t **_ptr, size_t size) {
326 CHECK_LE(size, 0x3fff);
328 uint8_t *ptr = *_ptr;
330 *ptr++ = 0x80 | (size >> 7);
331 *ptr++ = size & 0x7f;
336 static sp<ABuffer> MakeMPEGVideoESDS(const sp<ABuffer> &csd) {
337 sp<ABuffer> esds = new ABuffer(csd->size() + 25);
339 uint8_t *ptr = esds->data();
341 EncodeSize14(&ptr, 22 + csd->size());
343 *ptr++ = 0x00; // ES_ID
346 *ptr++ = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag
349 EncodeSize14(&ptr, 16 + csd->size());
351 *ptr++ = 0x40; // Audio ISO/IEC 14496-3
353 for (size_t i = 0; i < 12; ++i) {
358 EncodeSize14(&ptr, csd->size());
360 memcpy(ptr, csd->data(), csd->size());
365 // Returns the sample rate based on the sampling frequency index
366 static uint32_t get_sample_rate(const uint8_t sf_index)
368 static const uint32_t sample_rates[] =
370 96000, 88200, 64000, 48000, 44100, 32000,
371 24000, 22050, 16000, 12000, 11025, 8000
374 if (sf_index < sizeof(sample_rates) / sizeof(sample_rates[0])) {
375 return sample_rates[sf_index];
381 int FFmpegExtractor::check_extradata(AVCodecContext *avctx)
384 bool *defersToCreateTrack;
385 AVBitStreamFilterContext **bsfc;
388 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
390 defersToCreateTrack = &mDefersToCreateVideoTrack;
391 } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO){
393 defersToCreateTrack = &mDefersToCreateAudioTrack;
397 if (avctx->codec_id == CODEC_ID_MP3 ||
398 avctx->codec_id == CODEC_ID_MP1 ||
399 avctx->codec_id == CODEC_ID_MP2 ||
400 avctx->codec_id == CODEC_ID_AC3 ||
401 avctx->codec_id == CODEC_ID_H263 ||
402 avctx->codec_id == CODEC_ID_H263P ||
403 avctx->codec_id == CODEC_ID_H263I ||
404 avctx->codec_id == CODEC_ID_WMV1)
407 // is extradata compatible with android?
408 if (avctx->codec_id != CODEC_ID_AAC) {
409 int is_compatible = is_extradata_compatible_with_android(avctx);
410 if (!is_compatible) {
411 LOGI("%s extradata is not compatible with android, should to extract it from bitstream",
412 av_get_media_type_string(avctx->codec_type));
413 *defersToCreateTrack = true;
414 *bsfc = NULL; // H264 don't need bsfc, only AAC?
420 if (avctx->codec_id == CODEC_ID_AAC) {
421 name = "aac_adtstoasc";
424 if (avctx->extradata_size <= 0) {
425 LOGI("No %s extradata found, should to extract it from bitstream",
426 av_get_media_type_string(avctx->codec_type));
427 *defersToCreateTrack = true;
428 //CHECK(name != NULL);
429 if (!*bsfc && name) {
430 *bsfc = av_bitstream_filter_init(name);
432 LOGE("Cannot open the %s BSF!", name);
433 *defersToCreateTrack = false;
436 LOGV("open the %s bsf", name);
446 void FFmpegExtractor::printTime(int64_t time)
448 int hours, mins, secs, us;
450 if (time == AV_NOPTS_VALUE)
453 secs = time / AV_TIME_BASE;
454 us = time % AV_TIME_BASE;
459 LOGI("the time is %02d:%02d:%02d.%02d",
460 hours, mins, secs, (100 * us) / AV_TIME_BASE);
463 int FFmpegExtractor::stream_component_open(int stream_index)
465 AVCodecContext *avctx;
468 bool supported = false;
474 LOGI("stream_index: %d", stream_index);
475 if (stream_index < 0 || stream_index >= mFormatCtx->nb_streams)
477 avctx = mFormatCtx->streams[stream_index]->codec;
479 switch(avctx->codec_id) {
490 case CODEC_ID_MPEG2VIDEO:
497 case CODEC_ID_WMAPRO:
498 case CODEC_ID_WMALOSSLESS:
509 LOGE("unsupport the codec, id: 0x%0x", avctx->codec_id);
512 LOGV("support the codec");
515 ssize_t index = mTracks.indexOfKey(stream_index);
518 LOGE("this track already exists");
522 mFormatCtx->streams[stream_index]->discard = AVDISCARD_DEFAULT;
525 av_get_codec_tag_string(tagbuf, sizeof(tagbuf), avctx->codec_tag);
526 LOGV("Tag %s/0x%08x with codec id '%d'\n", tagbuf, avctx->codec_tag, avctx->codec_id);
528 switch (avctx->codec_type) {
529 case AVMEDIA_TYPE_VIDEO:
530 if (mVideoStreamIdx == -1)
531 mVideoStreamIdx = stream_index;
532 if (mVideoStream == NULL)
533 mVideoStream = mFormatCtx->streams[stream_index];
534 if (!mVideoQInited) {
535 packet_queue_init(&mVideoQ);
536 mVideoQInited = true;
539 ret = check_extradata(avctx);
542 // disable the stream
543 mVideoStreamIdx = -1;
545 packet_queue_end(&mVideoQ);
546 mVideoQInited = false;
547 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
552 if (avctx->extradata) {
553 LOGV("video stream extradata:");
554 hexdump(avctx->extradata, avctx->extradata_size);
556 LOGV("video stream no extradata, but we can ignore it.");
561 switch(avctx->codec_id) {
565 * http://msdn.microsoft.com/en-us/library/dd757808(v=vs.85).aspx
567 //if (avctx->codec_tag && avctx->codec_tag == AV_RL32("avc1")) {
568 if (avctx->extradata[0] == 1 /* configurationVersion */) {
569 // H.264 bitstream without start codes.
573 if (avctx->width == 0 || avctx->height == 0) {
574 int32_t width, height;
575 sp<ABuffer> seqParamSet = new ABuffer(avctx->extradata_size - 8);
576 memcpy(seqParamSet->data(), avctx->extradata + 8, avctx->extradata_size - 8);
577 FindAVCDimensions(seqParamSet, &width, &height);
578 avctx->width = width;
579 avctx->height = height;
582 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
583 meta->setData(kKeyAVCC, kTypeAVCC, avctx->extradata, avctx->extradata_size);
585 // H.264 bitstream with start codes.
589 /* set NULL to release meta as we will new a meta in MakeAVCCodecSpecificData() fxn */
593 sp<ABuffer> buffer = new ABuffer(avctx->extradata_size);
594 memcpy(buffer->data(), avctx->extradata, avctx->extradata_size);
595 meta = MakeAVCCodecSpecificData(buffer);
600 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
602 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
603 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
604 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
605 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
612 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
614 case CODEC_ID_MPEG2VIDEO:
616 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
618 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
619 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
620 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
621 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
626 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VC1);
627 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
631 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
632 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_7);
636 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
637 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
638 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_8);
642 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
643 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
644 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_9);
648 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
649 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
652 CHECK(!"Should not be here. Unsupported codec.");
656 LOGI("width: %d, height: %d, bit_rate: %d", avctx->width, avctx->height, avctx->bit_rate);
658 meta->setInt32(kKeyWidth, avctx->width);
659 meta->setInt32(kKeyHeight, avctx->height);
660 if (avctx->bit_rate > 0)
661 meta->setInt32(kKeyBitRate, avctx->bit_rate);
662 if (mVideoStream->duration != AV_NOPTS_VALUE) {
663 int64_t duration = mVideoStream->duration * av_q2d(mVideoStream->time_base) * 1000000;
665 LOGV("video startTime: %lld", mVideoStream->start_time);
666 meta->setInt64(kKeyDuration, duration);
668 // default when no stream duration
669 meta->setInt64(kKeyDuration, mFormatCtx->duration);
672 LOGV("create a video track");
674 stream_index, new Track(this, meta, isAVC, mVideoStream, &mVideoQ));
676 mDefersToCreateVideoTrack = false;
679 case AVMEDIA_TYPE_AUDIO:
680 if (mAudioStreamIdx == -1)
681 mAudioStreamIdx = stream_index;
682 if (mAudioStream == NULL)
683 mAudioStream = mFormatCtx->streams[stream_index];
684 if (!mAudioQInited) {
685 packet_queue_init(&mAudioQ);
686 mAudioQInited = true;
689 ret = check_extradata(avctx);
692 // disable the stream
693 mAudioStreamIdx = -1;
695 packet_queue_end(&mAudioQ);
696 mAudioQInited = false;
697 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
702 if (avctx->extradata) {
703 LOGV("audio stream extradata:");
704 hexdump(avctx->extradata, avctx->extradata_size);
706 LOGV("audio stream no extradata, but we can ignore it.");
709 switch(avctx->codec_id) {
713 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
718 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
723 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
728 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
733 const uint8_t *header;
734 uint8_t profile, sf_index, channel;
736 header = avctx->extradata;
737 CHECK(header != NULL);
739 // AudioSpecificInfo follows
740 // oooo offf fccc c000
741 // o - audioObjectType
742 // f - samplingFreqIndex
744 profile = ((header[0] & 0xf8) >> 3) - 1;
745 sf_index = (header[0] & 0x07) << 1 | (header[1] & 0x80) >> 7;
746 sr = get_sample_rate(sf_index);
748 LOGE("unsupport the sample rate");
751 channel = (header[1] >> 3) & 0xf;
752 LOGV("profile: %d, sf_index: %d, channel: %d", profile, sf_index, channel);
754 meta = MakeAACCodecSpecificData(profile, sf_index, channel);
755 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
757 case CODEC_ID_WMAV1: // TODO, version?
760 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
761 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
766 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
767 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
768 meta->setInt32(kKeyWMAVersion, kTypeWMA);
770 case CODEC_ID_WMAPRO:
773 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
774 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
775 meta->setInt32(kKeyWMAVersion, kTypeWMAPro);
777 case CODEC_ID_WMALOSSLESS:
780 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
781 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
782 meta->setInt32(kKeyWMAVersion, kTypeWMALossLess);
784 case CODEC_ID_COOK: // audio codec in RMVB
787 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RA);
788 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
791 CHECK(!"Should not be here. Unsupported codec.");
795 LOGI("bit_rate: %d, sample_rate: %d, channels: %d", avctx->bit_rate, avctx->sample_rate, avctx->channels);
797 meta->setInt32(kKeySampleRate, avctx->sample_rate);
798 meta->setInt32(kKeyChannelCount, avctx->channels);
799 meta->setInt32(kKeyBitRate, avctx->bit_rate);
800 meta->setInt32(kKeyBlockAlign, avctx->block_align);
801 if (mAudioStream->duration != AV_NOPTS_VALUE) {
802 int64_t duration = mAudioStream->duration * av_q2d(mAudioStream->time_base) * 1000000;
804 LOGV("audio startTime: %lld", mAudioStream->start_time);
805 meta->setInt64(kKeyDuration, duration);
807 // default when no stream duration
808 meta->setInt64(kKeyDuration, mFormatCtx->duration);
811 LOGV("create a audio track");
813 stream_index, new Track(this, meta, false, mAudioStream, &mAudioQ));
815 mDefersToCreateAudioTrack = false;
818 case AVMEDIA_TYPE_SUBTITLE:
820 CHECK(!"Should not be here. Unsupported media type.");
823 CHECK(!"Should not be here. Unsupported media type.");
829 void FFmpegExtractor::stream_component_close(int stream_index)
831 AVCodecContext *avctx;
833 if (stream_index < 0 || stream_index >= mFormatCtx->nb_streams)
835 avctx = mFormatCtx->streams[stream_index]->codec;
837 switch (avctx->codec_type) {
838 case AVMEDIA_TYPE_VIDEO:
839 LOGV("packet_queue_abort videoq");
840 packet_queue_abort(&mVideoQ);
841 /* wait until the end */
842 while (!mAbortRequest && !mVideoEOSReceived) {
843 LOGV("wait for video received");
846 LOGV("packet_queue_end videoq");
847 packet_queue_end(&mVideoQ);
849 case AVMEDIA_TYPE_AUDIO:
850 LOGV("packet_queue_abort audioq");
851 packet_queue_abort(&mAudioQ);
852 while (!mAbortRequest && !mAudioEOSReceived) {
853 LOGV("wait for audio received");
856 LOGV("packet_queue_end audioq");
857 packet_queue_end(&mAudioQ);
859 case AVMEDIA_TYPE_SUBTITLE:
865 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
866 switch (avctx->codec_type) {
867 case AVMEDIA_TYPE_VIDEO:
869 mVideoStreamIdx = -1;
871 av_bitstream_filter_close(mVideoBsfc);
875 case AVMEDIA_TYPE_AUDIO:
877 mAudioStreamIdx = -1;
879 av_bitstream_filter_close(mAudioBsfc);
883 case AVMEDIA_TYPE_SUBTITLE:
890 void FFmpegExtractor::reachedEOS(enum AVMediaType media_type)
892 Mutex::Autolock autoLock(mLock);
894 if (media_type == AVMEDIA_TYPE_VIDEO) {
895 mVideoEOSReceived = true;
896 } else if (media_type == AVMEDIA_TYPE_AUDIO) {
897 mAudioEOSReceived = true;
901 /* seek in the stream */
902 int FFmpegExtractor::stream_seek(int64_t pos, enum AVMediaType media_type)
904 Mutex::Autolock autoLock(mLock);
906 if (mVideoStreamIdx >= 0 &&
907 mAudioStreamIdx >= 0 &&
908 media_type == AVMEDIA_TYPE_AUDIO &&
909 !mVideoEOSReceived) {
914 if (mAudioStreamIdx >= 0)
915 packet_queue_flush(&mAudioQ);
916 if (mVideoStreamIdx >= 0)
917 packet_queue_flush(&mVideoQ);
920 mSeekFlags &= ~AVSEEK_FLAG_BYTE;
927 int FFmpegExtractor::decode_interrupt_cb(void *ctx)
929 FFmpegExtractor *extrator = static_cast<FFmpegExtractor *>(ctx);
930 return extrator->mAbortRequest;
933 void FFmpegExtractor::print_error_ex(const char *filename, int err)
936 const char *errbuf_ptr = errbuf;
938 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
939 errbuf_ptr = strerror(AVUNERROR(err));
940 LOGI("%s: %s\n", filename, errbuf_ptr);
943 void FFmpegExtractor::setFFmpegDefaultOpts()
946 #if DEBUG_DISABLE_VIDEO
951 #if DEBUG_DISABLE_AUDIO
957 mSeekByBytes = 0; /* seek by bytes 0=off 1=on -1=auto" */
958 mDuration = AV_NOPTS_VALUE;
959 mSeekPos = AV_NOPTS_VALUE;
963 mVideoStreamIdx = -1;
964 mAudioStreamIdx = -1;
967 mVideoQInited = false;
968 mAudioQInited = false;
969 mDefersToCreateVideoTrack = false;
970 mDefersToCreateAudioTrack = false;
983 int FFmpegExtractor::initStreams()
988 int ret = 0, audio_ret = 0, video_ret = 0;
989 int pkt_in_play_range = 0;
990 AVDictionaryEntry *t;
993 int st_index[AVMEDIA_TYPE_NB] = {0};
994 int wanted_stream[AVMEDIA_TYPE_NB] = {0};
995 st_index[AVMEDIA_TYPE_AUDIO] = -1;
996 st_index[AVMEDIA_TYPE_VIDEO] = -1;
997 wanted_stream[AVMEDIA_TYPE_AUDIO] = -1;
998 wanted_stream[AVMEDIA_TYPE_VIDEO] = -1;
1000 setFFmpegDefaultOpts();
1002 status = initFFmpeg();
1008 av_init_packet(&flush_pkt);
1009 flush_pkt.data = (uint8_t *)"FLUSH";
1012 mFormatCtx = avformat_alloc_context();
1013 mFormatCtx->interrupt_callback.callback = decode_interrupt_cb;
1014 mFormatCtx->interrupt_callback.opaque = this;
1015 LOGV("mFilename: %s", mFilename);
1016 err = avformat_open_input(&mFormatCtx, mFilename, NULL, &format_opts);
1018 print_error_ex(mFilename, err);
1022 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1023 LOGE("Option %s not found.\n", t->key);
1024 //ret = AVERROR_OPTION_NOT_FOUND;
1030 mFormatCtx->flags |= AVFMT_FLAG_GENPTS;
1032 opts = setup_find_stream_info_opts(mFormatCtx, codec_opts);
1033 orig_nb_streams = mFormatCtx->nb_streams;
1035 err = avformat_find_stream_info(mFormatCtx, opts);
1037 LOGE("%s: could not find codec parameters\n", mFilename);
1041 for (i = 0; i < orig_nb_streams; i++)
1042 av_dict_free(&opts[i]);
1046 mFormatCtx->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
1048 if (mSeekByBytes < 0)
1049 mSeekByBytes = !!(mFormatCtx->iformat->flags & AVFMT_TS_DISCONT);
1051 for (i = 0; i < mFormatCtx->nb_streams; i++)
1052 mFormatCtx->streams[i]->discard = AVDISCARD_ALL;
1054 st_index[AVMEDIA_TYPE_VIDEO] =
1055 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_VIDEO,
1056 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
1058 st_index[AVMEDIA_TYPE_AUDIO] =
1059 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_AUDIO,
1060 wanted_stream[AVMEDIA_TYPE_AUDIO],
1061 st_index[AVMEDIA_TYPE_VIDEO],
1064 av_dump_format(mFormatCtx, 0, mFilename, 0);
1067 if (mFormatCtx->duration != AV_NOPTS_VALUE &&
1068 mFormatCtx->start_time != AV_NOPTS_VALUE) {
1069 int hours, mins, secs, us;
1071 LOGV("file startTime: %lld", mFormatCtx->start_time);
1073 mDuration = mFormatCtx->duration;
1075 secs = mDuration / AV_TIME_BASE;
1076 us = mDuration % AV_TIME_BASE;
1081 LOGI("the duration is %02d:%02d:%02d.%02d",
1082 hours, mins, secs, (100 * us) / AV_TIME_BASE);
1085 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
1086 audio_ret = stream_component_open(st_index[AVMEDIA_TYPE_AUDIO]);
1089 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
1090 video_ret = stream_component_open(st_index[AVMEDIA_TYPE_VIDEO]);
1093 if ( audio_ret < 0 && video_ret < 0) {
1094 LOGE("%s: could not open codecs\n", mFilename);
1105 void FFmpegExtractor::deInitStreams()
1108 avformat_close_input(&mFormatCtx);
1114 status_t FFmpegExtractor::startReaderThread() {
1115 LOGV("Starting reader thread");
1116 Mutex::Autolock autoLock(mLock);
1118 if (mReaderThreadStarted)
1121 pthread_attr_t attr;
1122 pthread_attr_init(&attr);
1123 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
1124 pthread_create(&mReaderThread, &attr, ReaderWrapper, this);
1125 pthread_attr_destroy(&attr);
1126 mReaderThreadStarted = true;
1127 LOGD("Reader thread started");
1132 void FFmpegExtractor::stopReaderThread() {
1133 LOGV("Stopping reader thread");
1134 Mutex::Autolock autoLock(mLock);
1136 if (!mReaderThreadStarted) {
1137 LOGD("Reader thread have been stopped");
1144 pthread_join(mReaderThread, &dummy);
1145 mReaderThreadStarted = false;
1146 LOGD("Reader thread stopped");
1150 void *FFmpegExtractor::ReaderWrapper(void *me) {
1151 ((FFmpegExtractor *)me)->readerEntry();
1156 void FFmpegExtractor::readerEntry() {
1158 AVPacket pkt1, *pkt = &pkt1;
1160 int pkt_in_play_range = 0;
1162 LOGV("FFmpegExtractor::readerEntry");
1164 mVideoEOSReceived = false;
1165 mAudioEOSReceived = false;
1171 if (mPaused != mLastPaused) {
1172 mLastPaused = mPaused;
1174 mReadPauseReturn = av_read_pause(mFormatCtx);
1176 av_read_play(mFormatCtx);
1178 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
1180 (!strcmp(mFormatCtx->iformat->name, "rtsp") ||
1181 (mFormatCtx->pb && !strncmp(mFilename, "mmsh:", 5)))) {
1182 /* wait 10 ms to avoid trying to get another packet */
1190 LOGV("readerEntry, mSeekReq: %d", mSeekReq);
1191 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, mSeekPos, INT64_MAX, mSeekFlags);
1193 LOGE("%s: error while seeking", mFormatCtx->filename);
1195 if (mAudioStreamIdx >= 0) {
1196 packet_queue_flush(&mAudioQ);
1197 packet_queue_put(&mAudioQ, &flush_pkt);
1199 if (mVideoStreamIdx >= 0) {
1200 packet_queue_flush(&mVideoQ);
1201 packet_queue_put(&mVideoQ, &flush_pkt);
1208 /* if the queue are full, no need to read more */
1209 if ( mAudioQ.size + mVideoQ.size > MAX_QUEUE_SIZE
1210 || ( (mAudioQ .size > MIN_AUDIOQ_SIZE || mAudioStreamIdx < 0)
1211 && (mVideoQ .nb_packets > MIN_FRAMES || mVideoStreamIdx < 0))) {
1212 #if DEBUG_READ_ENTRY
1213 LOGV("readerEntry, is full, fuck");
1221 if (mVideoStreamIdx >= 0) {
1222 av_init_packet(pkt);
1225 pkt->stream_index = mVideoStreamIdx;
1226 packet_queue_put(&mVideoQ, pkt);
1228 if (mAudioStreamIdx >= 0) {
1229 av_init_packet(pkt);
1232 pkt->stream_index = mAudioStreamIdx;
1233 packet_queue_put(&mAudioQ, pkt);
1236 #if DEBUG_READ_ENTRY
1237 LOGV("readerEntry, eof = 1, mVideoQ.size: %d, mVideoQ.nb_packets: %d, mAudioQ.size: %d, mAudioQ.nb_packets: %d",
1238 mVideoQ.size, mVideoQ.nb_packets, mAudioQ.size, mAudioQ.nb_packets);
1240 if (mAudioQ.size + mVideoQ.size == 0) {
1250 ret = av_read_frame(mFormatCtx, pkt);
1253 if (ret == AVERROR_EOF || url_feof(mFormatCtx->pb))
1254 if (ret == AVERROR_EOF) {
1255 //LOGV("ret == AVERROR_EOF");
1257 if (url_feof(mFormatCtx->pb)) {
1258 //LOGV("url_feof(mFormatCtx->pb)");
1263 if (mFormatCtx->pb && mFormatCtx->pb->error) {
1264 LOGE("mFormatCtx->pb->error: %d", mFormatCtx->pb->error);
1271 if (pkt->stream_index == mVideoStreamIdx) {
1272 if (mDefersToCreateVideoTrack) {
1273 AVCodecContext *avctx = mFormatCtx->streams[mVideoStreamIdx]->codec;
1275 int i = parser_split(avctx, pkt->data, pkt->size);
1276 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
1277 if (avctx->extradata)
1278 av_freep(&avctx->extradata);
1279 avctx->extradata_size= i;
1280 avctx->extradata = (uint8_t *)av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1281 if (!avctx->extradata) {
1282 //return AVERROR(ENOMEM);
1283 ret = AVERROR(ENOMEM);
1286 // sps + pps(there may be sei in it)
1287 memcpy(avctx->extradata, pkt->data, avctx->extradata_size);
1288 memset(avctx->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1290 av_free_packet(pkt);
1294 stream_component_open(mVideoStreamIdx);
1295 if (!mDefersToCreateVideoTrack)
1296 LOGI("probe packet counter: %d when create video track ok", mProbePkts);
1297 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1298 LOGI("probe packet counter to max: %d, create video track: %d",
1299 mProbePkts, !mDefersToCreateVideoTrack);
1301 } else if (pkt->stream_index == mAudioStreamIdx) {
1305 AVCodecContext *avctx = mFormatCtx->streams[mAudioStreamIdx]->codec;
1306 if (mAudioBsfc && pkt && pkt->data) {
1307 ret = av_bitstream_filter_filter(mAudioBsfc, avctx, NULL, &outbuf, &outbuf_size,
1308 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
1310 if (ret < 0 ||!outbuf_size) {
1311 av_free_packet(pkt);
1314 if (outbuf && outbuf != pkt->data) {
1315 memmove(pkt->data, outbuf, outbuf_size);
1316 pkt->size = outbuf_size;
1319 if (mDefersToCreateAudioTrack) {
1320 if (avctx->extradata_size <= 0) {
1321 av_free_packet(pkt);
1324 stream_component_open(mAudioStreamIdx);
1325 if (!mDefersToCreateAudioTrack)
1326 LOGI("probe packet counter: %d when create audio track ok", mProbePkts);
1327 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1328 LOGI("probe packet counter to max: %d, create audio track: %d",
1329 mProbePkts, !mDefersToCreateAudioTrack);
1333 if (pkt->stream_index == mAudioStreamIdx) {
1334 packet_queue_put(&mAudioQ, pkt);
1335 } else if (pkt->stream_index == mVideoStreamIdx) {
1336 packet_queue_put(&mVideoQ, pkt);
1338 av_free_packet(pkt);
1341 /* wait until the end */
1342 while (!mAbortRequest) {
1348 LOGI("reader thread goto end...");
1350 /* close each stream */
1351 if (mAudioStreamIdx >= 0)
1352 stream_component_close(mAudioStreamIdx);
1353 if (mVideoStreamIdx >= 0)
1354 stream_component_close(mVideoStreamIdx);
1356 avformat_close_input(&mFormatCtx);
1360 ////////////////////////////////////////////////////////////////////////////////
1362 FFmpegExtractor::Track::Track(
1363 const sp<FFmpegExtractor> &extractor, sp<MetaData> meta, bool isAVC,
1364 AVStream *stream, PacketQueue *queue)
1365 : mExtractor(extractor),
1372 /* H.264 Video Types */
1374 mNal2AnnexB = false;
1380 CHECK(meta->findData(kKeyAVCC, &type, &data, &size));
1382 const uint8_t *ptr = (const uint8_t *)data;
1385 CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
1387 // The number of bytes used to encode the length of a NAL unit.
1388 mNALLengthSize = 1 + (ptr[4] & 3);
1390 LOGV("the stream is AVC, the length of a NAL unit: %d", mNALLengthSize);
1396 mMediaType = mStream->codec->codec_type;
1399 FFmpegExtractor::Track::~Track() {
1402 status_t FFmpegExtractor::Track::start(MetaData *params) {
1403 Mutex::Autolock autoLock(mLock);
1404 //mExtractor->startReaderThread();
1408 status_t FFmpegExtractor::Track::stop() {
1409 Mutex::Autolock autoLock(mLock);
1410 mExtractor->stopReaderThread();
1414 sp<MetaData> FFmpegExtractor::Track::getFormat() {
1415 Mutex::Autolock autoLock(mLock);
1420 status_t FFmpegExtractor::Track::read(
1421 MediaBuffer **buffer, const ReadOptions *options) {
1424 Mutex::Autolock autoLock(mLock);
1427 bool seeking = false;
1428 bool waitKeyPkt = false;
1429 ReadOptions::SeekMode mode;
1430 int64_t pktTS = AV_NOPTS_VALUE;
1431 int64_t seekTimeUs = AV_NOPTS_VALUE;
1434 status_t status = OK;
1436 if (options && options->getSeekTo(&seekTimeUs, &mode)) {
1437 LOGV("~~~%s seekTimeUs: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1438 /* add the stream start time */
1439 if (mStream->start_time != AV_NOPTS_VALUE)
1440 seekTimeUs += mStream->start_time * av_q2d(mStream->time_base) * 1000000;
1441 //seekTimeUs += 31948238333;
1442 LOGV("~~~%s startTime: %lld, mode: %d", av_get_media_type_string(mMediaType), mStream->start_time, mode);
1443 LOGV("~~~%s seekTimeUs[+startTime]: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1445 if (mExtractor->stream_seek(seekTimeUs, mMediaType) == SEEK)
1450 if (mExtractor->packet_queue_get(mQueue, &pkt, 1) < 0) {
1451 mExtractor->reachedEOS(mMediaType);
1452 return ERROR_END_OF_STREAM;
1456 if (pkt.data != flush_pkt.data) {
1457 av_free_packet(&pkt);
1461 #if WAIT_KEY_PACKET_AFTER_SEEK
1467 if (pkt.data == flush_pkt.data) {
1468 LOGV("read %s flush pkt", av_get_media_type_string(mMediaType));
1469 av_free_packet(&pkt);
1471 } else if (pkt.data == NULL && pkt.size == 0) {
1472 LOGV("read %s eos pkt", av_get_media_type_string(mMediaType));
1473 av_free_packet(&pkt);
1474 mExtractor->reachedEOS(mMediaType);
1475 return ERROR_END_OF_STREAM;
1478 key = pkt.flags & AV_PKT_FLAG_KEY ? 1 : 0;
1482 LOGV("drop the no key packet");
1483 av_free_packet(&pkt);
1486 LOGV("~~~~~~ got the key packet");
1491 MediaBuffer *mediaBuffer = new MediaBuffer(pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
1492 mediaBuffer->meta_data()->clear();
1493 mediaBuffer->set_range(0, pkt.size);
1494 #if DISABLE_NAL_TO_ANNEXB
1495 mNal2AnnexB = false;
1497 if (mIsAVC && mNal2AnnexB) {
1498 /* Convert H.264 NAL format to annex b */
1499 if (mNALLengthSize >= 3 && mNALLengthSize <= 4 )
1501 uint8_t *dst = (uint8_t *)mediaBuffer->data();
1503 /* This only works for NAL sizes 3-4 */
1504 size_t len = pkt.size, i;
1505 uint8_t *ptr = pkt.data;
1506 while (len >= mNALLengthSize) {
1507 uint32_t nal_len = 0;
1508 for( i = 0; i < mNALLengthSize; i++ ) {
1509 nal_len = (nal_len << 8) | ptr[i];
1512 dst[mNALLengthSize - 1] = 1;
1513 if (nal_len > INT_MAX || nal_len > (unsigned int)len) {
1514 status = ERROR_MALFORMED;
1517 dst += mNALLengthSize;
1518 ptr += mNALLengthSize;
1519 len -= mNALLengthSize;
1521 memcpy(dst, ptr, nal_len);
1528 status = ERROR_MALFORMED;
1532 LOGV("status != OK");
1533 mediaBuffer->release();
1535 av_free_packet(&pkt);
1536 return ERROR_MALFORMED;
1539 memcpy(mediaBuffer->data(), pkt.data, pkt.size);
1544 if (pkt.pts == AV_NOPTS_VALUE)
1548 // TODO, Stagefright can't handle negative timestamps
1549 // if needed, work around this by offsetting them manually?
1553 int64_t start_time = mStream->start_time != AV_NOPTS_VALUE ? mStream->start_time : 0;
1554 timeUs = (int64_t)((pktTS - start_time) * av_q2d(mStream->time_base) * 1000000);
1557 LOGV("read %s pkt, size: %d, key: %d, pts: %lld, dts: %lld, timeUs[-startTime]: %llu us (%.2f secs)",
1558 av_get_media_type_string(mMediaType), pkt.size, key, pkt.pts, pkt.dts, timeUs, timeUs/1E6);
1562 // TODO, Stagefright can't handle negative timestamps
1563 // if needed, work around this by offsetting them manually?
1568 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
1569 mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, key);
1571 *buffer = mediaBuffer;
1573 av_free_packet(&pkt);
1578 ////////////////////////////////////////////////////////////////////////////////
1580 // LegacySniffFFMPEG
1582 const char *extension;
1583 const char *container;
1586 static extmap FILE_EXTS[] = {
1587 {".mp4", MEDIA_MIMETYPE_CONTAINER_MPEG4},
1588 {".3gp", MEDIA_MIMETYPE_CONTAINER_MPEG4},
1589 {".mp3", MEDIA_MIMETYPE_AUDIO_MPEG},
1590 {".mov", MEDIA_MIMETYPE_CONTAINER_MOV},
1591 {".mkv", MEDIA_MIMETYPE_CONTAINER_MATROSKA},
1592 {".ts", MEDIA_MIMETYPE_CONTAINER_TS},
1593 {".avi", MEDIA_MIMETYPE_CONTAINER_AVI},
1594 {".asf", MEDIA_MIMETYPE_CONTAINER_ASF},
1595 {".rm ", MEDIA_MIMETYPE_CONTAINER_RM},
1597 {".wmv", MEDIA_MIMETYPE_CONTAINER_WMV},
1598 {".wma", MEDIA_MIMETYPE_CONTAINER_WMA},
1599 {".mpg", MEDIA_MIMETYPE_CONTAINER_MPG},
1600 {".flv", MEDIA_MIMETYPE_CONTAINER_FLV},
1601 {".divx", MEDIA_MIMETYPE_CONTAINER_DIVX},
1602 {".mp2", MEDIA_MIMETYPE_CONTAINER_MP2},
1603 {".ape", MEDIA_MIMETYPE_CONTAINER_APE},
1604 {".ra", MEDIA_MIMETYPE_CONTAINER_RA},
1608 const char *LegacySniffFFMPEG(const char * uri)
1611 const char *container = NULL;
1613 LOGI("list the file extensions suppoted by ffmpeg: ");
1614 LOGI("========================================");
1615 for (i = 0; i < NELEM(FILE_EXTS); ++i) {
1616 LOGV("file_exts[%02d]: %s", i, FILE_EXTS[i].extension);
1618 LOGI("========================================");
1620 int lenURI = strlen(uri);
1621 for (i = 0; i < NELEM(FILE_EXTS); ++i) {
1622 int len = strlen(FILE_EXTS[i].extension);
1623 int start = lenURI - len;
1625 if (!av_strncasecmp(uri + start, FILE_EXTS[i].extension, len)) {
1626 container = FILE_EXTS[i].container;
1635 // BetterSniffFFMPEG
1638 const char *container;
1641 static formatmap FILE_FORMATS[] = {
1642 {"mpegts", MEDIA_MIMETYPE_CONTAINER_TS},
1643 {"mov,mp4,m4a,3gp,3g2,mj2", MEDIA_MIMETYPE_CONTAINER_MOV},
1644 {"asf", MEDIA_MIMETYPE_CONTAINER_ASF},
1645 {"rm", MEDIA_MIMETYPE_CONTAINER_RM},
1648 const char *BetterSniffFFMPEG(const char * uri)
1651 const char *container = NULL;
1652 AVFormatContext *ic = NULL;
1654 status_t status = initFFmpeg();
1656 LOGE("could not init ffmpeg");
1660 ic = avformat_alloc_context();
1661 avformat_open_input(&ic, uri, NULL, NULL);
1663 av_dump_format(ic, 0, uri, 0);
1665 LOGI("FFmpegExtrator, uri: %s, format_name: %s, format_long_name: %s", uri, ic->iformat->name, ic->iformat->long_name);
1667 LOGI("list the format suppoted by ffmpeg: ");
1668 LOGI("========================================");
1669 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1670 LOGV("format_names[%02d]: %s", i, FILE_FORMATS[i].format);
1672 LOGI("========================================");
1674 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1675 int len = strlen(FILE_FORMATS[i].format);
1676 if (!av_strncasecmp(ic->iformat->name, FILE_FORMATS[i].format, len)) {
1677 container = FILE_FORMATS[i].container;
1682 avformat_close_input(&ic);
1689 const sp<DataSource> &source, String8 *mimeType, float *confidence,
1690 sp<AMessage> *meta) {
1691 LOGV("SniffFFMPEG");
1692 const char *uri, *container = NULL;
1694 uri = source->getNamURI();
1699 LOGI("ffmpeg uri: %s", uri);
1701 container = BetterSniffFFMPEG(uri);
1703 LOGW("sniff through LegacySniffFFMPEG, only check the file extension");
1704 container = LegacySniffFFMPEG(uri);
1707 if (container == NULL)
1710 LOGV("found container: %s", container);
1712 *confidence = 0.88f; // Slightly larger than other extractor's confidence
1713 mimeType->setTo(container);
1715 /* use MPEG4Extractor(not extended extractor) for HTTP source only */
1716 if (!av_strcasecmp(container, MEDIA_MIMETYPE_CONTAINER_MPEG4)
1717 && (source->flags() & DataSource::kIsCachingDataSource)) {
1721 *meta = new AMessage;
1722 (*meta)->setString("extended-extractor", "extended-extractor");
1723 (*meta)->setString("extended-extractor-subtype", "ffmpegextractor");
1728 } // namespace android