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>
22 #include <limits.h> /* INT_MAX */
25 #include <media/stagefright/foundation/ABitReader.h>
26 #include <media/stagefright/foundation/ABuffer.h>
27 #include <media/stagefright/foundation/ADebug.h>
28 #include <media/stagefright/foundation/AMessage.h>
29 #include <media/stagefright/foundation/hexdump.h>
30 #include <media/stagefright/DataSource.h>
31 #include <media/stagefright/MediaBuffer.h>
32 #include <media/stagefright/foundation/ADebug.h>
33 #include <media/stagefright/MediaDefs.h>
34 #include <media/stagefright/MediaErrors.h>
35 #include <media/stagefright/MediaSource.h>
36 #include <media/stagefright/MetaData.h>
37 #include <media/stagefright/Utils.h>
38 #include <cutils/properties.h>
39 #include <utils/String8.h>
40 #include <utils/misc.h>
42 #include "include/avc_utils.h"
43 #include "utils/ffmpeg_utils.h"
44 #include "utils/ffmpeg_cmdutils.h"
45 #include "FFmpegExtractor.h"
47 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
48 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
50 #define EXTRACTOR_MAX_PROBE_PACKETS 200
51 #define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE)
54 #define DEBUG_READ_ENTRY 0
55 #define DEBUG_DISABLE_VIDEO 0
56 #define DEBUG_DISABLE_AUDIO 0
57 #define WAIT_KEY_PACKET_AFTER_SEEK 1
58 #define DISABLE_NAL_TO_ANNEXB 0
66 static AVPacket flush_pkt;
70 static const char *findMatchingContainer(const char *name);
72 struct FFmpegExtractor::Track : public MediaSource {
73 Track(FFmpegExtractor *extractor, sp<MetaData> meta, bool isAVC,
74 AVStream *stream, PacketQueue *queue);
76 virtual status_t start(MetaData *params);
77 virtual status_t stop();
78 virtual sp<MetaData> getFormat();
80 virtual status_t read(
81 MediaBuffer **buffer, const ReadOptions *options);
87 friend struct FFmpegExtractor;
89 FFmpegExtractor *mExtractor;
92 enum AVMediaType mMediaType;
97 size_t mNALLengthSize;
103 int64_t mFirstKeyPktTimestamp;
105 DISALLOW_EVIL_CONSTRUCTORS(Track);
108 ////////////////////////////////////////////////////////////////////////////////
110 FFmpegExtractor::FFmpegExtractor(const sp<DataSource> &source)
111 : mDataSource(source),
114 mFFmpegInited(false),
116 mReaderThreadStarted(false) {
117 ALOGV("FFmpegExtractor::FFmpegExtractor");
119 buildFileName(source);
121 int err = initStreams();
123 ALOGE("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 ALOGV("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 ALOGV("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 ALOGV("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 ALOGV("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 ALOGV("FFmpegExtractor::getMetaData");
187 if (mInitCheck != OK) {
194 uint32_t FFmpegExtractor::flags() const {
195 ALOGV("FFmpegExtractor::flags");
197 if (mInitCheck != OK) {
201 uint32_t flags = CAN_PAUSE;
203 if (mFormatCtx->duration != AV_NOPTS_VALUE) {
204 flags |= CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK;
210 void FFmpegExtractor::packet_queue_init(PacketQueue *q)
212 memset(q, 0, sizeof(PacketQueue));
213 pthread_mutex_init(&q->mutex, NULL);
214 pthread_cond_init(&q->cond, NULL);
215 packet_queue_put(q, &flush_pkt);
218 void FFmpegExtractor::packet_queue_flush(PacketQueue *q)
220 AVPacketList *pkt, *pkt1;
222 pthread_mutex_lock(&q->mutex);
223 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
225 av_free_packet(&pkt->pkt);
232 pthread_mutex_unlock(&q->mutex);
235 void FFmpegExtractor::packet_queue_end(PacketQueue *q)
237 packet_queue_flush(q);
240 void FFmpegExtractor::packet_queue_abort(PacketQueue *q)
242 pthread_mutex_lock(&q->mutex);
244 q->abort_request = 1;
246 pthread_cond_signal(&q->cond);
248 pthread_mutex_unlock(&q->mutex);
251 int FFmpegExtractor::packet_queue_put(PacketQueue *q, AVPacket *pkt)
255 /* duplicate the packet */
256 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
259 pkt1 = (AVPacketList *)av_malloc(sizeof(AVPacketList));
265 pthread_mutex_lock(&q->mutex);
271 q->last_pkt->next = pkt1;
274 //q->size += pkt1->pkt.size + sizeof(*pkt1);
275 q->size += pkt1->pkt.size;
276 pthread_cond_signal(&q->cond);
278 pthread_mutex_unlock(&q->mutex);
282 /* packet queue handling */
283 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
284 int FFmpegExtractor::packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
289 pthread_mutex_lock(&q->mutex);
292 if (q->abort_request) {
299 q->first_pkt = pkt1->next;
303 //q->size -= pkt1->pkt.size + sizeof(*pkt1);
304 q->size -= pkt1->pkt.size;
313 pthread_cond_wait(&q->cond, &q->mutex);
316 pthread_mutex_unlock(&q->mutex);
320 static void EncodeSize14(uint8_t **_ptr, size_t size) {
321 CHECK_LE(size, 0x3fff);
323 uint8_t *ptr = *_ptr;
325 *ptr++ = 0x80 | (size >> 7);
326 *ptr++ = size & 0x7f;
331 static sp<ABuffer> MakeMPEGVideoESDS(const sp<ABuffer> &csd) {
332 sp<ABuffer> esds = new ABuffer(csd->size() + 25);
334 uint8_t *ptr = esds->data();
336 EncodeSize14(&ptr, 22 + csd->size());
338 *ptr++ = 0x00; // ES_ID
341 *ptr++ = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag
344 EncodeSize14(&ptr, 16 + csd->size());
346 *ptr++ = 0x40; // Audio ISO/IEC 14496-3
348 for (size_t i = 0; i < 12; ++i) {
353 EncodeSize14(&ptr, csd->size());
355 memcpy(ptr, csd->data(), csd->size());
360 // Returns the sample rate based on the sampling frequency index
361 static uint32_t get_sample_rate(const uint8_t sf_index)
363 static const uint32_t sample_rates[] =
365 96000, 88200, 64000, 48000, 44100, 32000,
366 24000, 22050, 16000, 12000, 11025, 8000
369 if (sf_index < sizeof(sample_rates) / sizeof(sample_rates[0])) {
370 return sample_rates[sf_index];
376 int FFmpegExtractor::check_extradata(AVCodecContext *avctx)
378 const char *name = NULL;
379 bool *defersToCreateTrack = NULL;
380 AVBitStreamFilterContext **bsfc = NULL;
383 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
385 defersToCreateTrack = &mDefersToCreateVideoTrack;
386 } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO){
388 defersToCreateTrack = &mDefersToCreateAudioTrack;
392 if (avctx->codec_id == CODEC_ID_MP3 ||
393 avctx->codec_id == CODEC_ID_MP1 ||
394 avctx->codec_id == CODEC_ID_MP2 ||
395 avctx->codec_id == CODEC_ID_AC3 ||
396 avctx->codec_id == CODEC_ID_DTS ||
397 avctx->codec_id == CODEC_ID_H263 ||
398 avctx->codec_id == CODEC_ID_H263P ||
399 avctx->codec_id == CODEC_ID_H263I ||
400 avctx->codec_id == CODEC_ID_WMV1)
403 // is extradata compatible with android?
404 if (avctx->codec_id != CODEC_ID_AAC) {
405 int is_compatible = is_extradata_compatible_with_android(avctx);
406 if (!is_compatible) {
407 ALOGI("%s extradata is not compatible with android, should to extract it from bitstream",
408 av_get_media_type_string(avctx->codec_type));
409 *defersToCreateTrack = true;
410 *bsfc = NULL; // H264 don't need bsfc, only AAC?
416 if (avctx->codec_id == CODEC_ID_AAC) {
417 name = "aac_adtstoasc";
420 if (avctx->extradata_size <= 0) {
421 ALOGI("No %s extradata found, should to extract it from bitstream",
422 av_get_media_type_string(avctx->codec_type));
423 *defersToCreateTrack = true;
424 //CHECK(name != NULL);
425 if (!*bsfc && name) {
426 *bsfc = av_bitstream_filter_init(name);
428 ALOGE("Cannot open the %s BSF!", name);
429 *defersToCreateTrack = false;
432 ALOGV("open the %s bsf", name);
442 void FFmpegExtractor::printTime(int64_t time)
444 int hours, mins, secs, us;
446 if (time == AV_NOPTS_VALUE)
449 secs = time / AV_TIME_BASE;
450 us = time % AV_TIME_BASE;
455 ALOGI("the time is %02d:%02d:%02d.%02d",
456 hours, mins, secs, (100 * us) / AV_TIME_BASE);
459 int FFmpegExtractor::stream_component_open(int stream_index)
461 AVCodecContext *avctx = NULL;
462 sp<MetaData> meta = NULL;
464 bool supported = false;
466 const void *data = NULL;
470 ALOGI("stream_index: %d", stream_index);
471 if (stream_index < 0 || stream_index >= (int)mFormatCtx->nb_streams)
473 avctx = mFormatCtx->streams[stream_index]->codec;
475 switch(avctx->codec_id) {
486 case CODEC_ID_MPEG1VIDEO:
487 case CODEC_ID_MPEG2VIDEO:
494 case CODEC_ID_WMAPRO:
495 case CODEC_ID_WMALOSSLESS:
511 ALOGE("unsupport the codec, id: 0x%0x", avctx->codec_id);
514 ALOGV("support the codec");
517 ssize_t index = mTracks.indexOfKey(stream_index);
520 ALOGE("this track already exists");
524 mFormatCtx->streams[stream_index]->discard = AVDISCARD_DEFAULT;
527 av_get_codec_tag_string(tagbuf, sizeof(tagbuf), avctx->codec_tag);
528 ALOGV("Tag %s/0x%08x with codec id '%d'\n", tagbuf, avctx->codec_tag, avctx->codec_id);
530 switch (avctx->codec_type) {
531 case AVMEDIA_TYPE_VIDEO:
532 if (mVideoStreamIdx == -1)
533 mVideoStreamIdx = stream_index;
534 if (mVideoStream == NULL)
535 mVideoStream = mFormatCtx->streams[stream_index];
536 if (!mVideoQInited) {
537 packet_queue_init(&mVideoQ);
538 mVideoQInited = true;
541 ret = check_extradata(avctx);
544 // disable the stream
545 mVideoStreamIdx = -1;
547 packet_queue_end(&mVideoQ);
548 mVideoQInited = false;
549 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
554 if (avctx->extradata) {
555 ALOGV("video stream extradata:");
556 hexdump(avctx->extradata, avctx->extradata_size);
558 ALOGV("video stream no extradata, but we can ignore it.");
563 switch(avctx->codec_id) {
567 * http://msdn.microsoft.com/en-us/library/dd757808(v=vs.85).aspx
569 //if (avctx->codec_tag && avctx->codec_tag == AV_RL32("avc1")) {
570 if (avctx->extradata[0] == 1 /* configurationVersion */) {
571 // H.264 bitstream without start codes.
575 if (avctx->width == 0 || avctx->height == 0) {
576 int32_t width, height;
577 sp<ABuffer> seqParamSet = new ABuffer(avctx->extradata_size - 8);
578 memcpy(seqParamSet->data(), avctx->extradata + 8, avctx->extradata_size - 8);
579 FindAVCDimensions(seqParamSet, &width, &height);
580 avctx->width = width;
581 avctx->height = height;
584 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
585 meta->setData(kKeyAVCC, kTypeAVCC, avctx->extradata, avctx->extradata_size);
587 // H.264 bitstream with start codes.
591 /* set NULL to release meta as we will new a meta in MakeAVCCodecSpecificData() fxn */
595 sp<ABuffer> buffer = new ABuffer(avctx->extradata_size);
596 memcpy(buffer->data(), avctx->extradata, avctx->extradata_size);
597 meta = MakeAVCCodecSpecificData(buffer);
602 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
604 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
605 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
606 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
607 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
614 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
616 case CODEC_ID_MPEG1VIDEO:
617 case CODEC_ID_MPEG2VIDEO:
618 ALOGV("MPEG%dVIDEO", avctx->codec_id == CODEC_ID_MPEG2VIDEO ? 2 : 1);
619 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
621 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
622 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
623 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
624 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
629 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VC1);
630 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
634 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
635 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_7);
639 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
640 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
641 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_8);
645 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
646 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
647 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_9);
651 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
652 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
653 meta->setInt32(kKeyRVVersion, kTypeRVVer_G2); //http://en.wikipedia.org/wiki/RealVideo
656 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
657 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
658 meta->setInt32(kKeyRVVersion, kTypeRVVer_8); //http://en.wikipedia.org/wiki/RealVideo
662 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
663 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
664 meta->setInt32(kKeyRVVersion, kTypeRVVer_9); //http://en.wikipedia.org/wiki/RealVideo
667 CHECK(!"Should not be here. Unsupported codec.");
671 ALOGI("width: %d, height: %d, bit_rate: %d",
672 avctx->width, avctx->height, avctx->bit_rate);
674 meta->setInt32(kKeyWidth, avctx->width);
675 meta->setInt32(kKeyHeight, avctx->height);
676 if (avctx->bit_rate > 0)
677 meta->setInt32(kKeyBitRate, avctx->bit_rate);
678 if (mVideoStream->duration != AV_NOPTS_VALUE) {
679 int64_t duration = mVideoStream->duration * av_q2d(mVideoStream->time_base) * 1000000;
681 ALOGV("video startTime: %lld", mVideoStream->start_time);
682 meta->setInt64(kKeyDuration, duration);
684 // default when no stream duration
685 meta->setInt64(kKeyDuration, mFormatCtx->duration);
688 ALOGV("create a video track");
690 stream_index, new Track(this, meta, isAVC, mVideoStream, &mVideoQ));
692 mDefersToCreateVideoTrack = false;
695 case AVMEDIA_TYPE_AUDIO:
696 if (mAudioStreamIdx == -1)
697 mAudioStreamIdx = stream_index;
698 if (mAudioStream == NULL)
699 mAudioStream = mFormatCtx->streams[stream_index];
700 if (!mAudioQInited) {
701 packet_queue_init(&mAudioQ);
702 mAudioQInited = true;
705 ret = check_extradata(avctx);
708 // disable the stream
709 mAudioStreamIdx = -1;
711 packet_queue_end(&mAudioQ);
712 mAudioQInited = false;
713 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
718 if (avctx->extradata) {
719 ALOGV("audio stream extradata:");
720 hexdump(avctx->extradata, avctx->extradata_size);
722 ALOGV("audio stream no extradata, but we can ignore it.");
725 switch(avctx->codec_id) {
729 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
734 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
739 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
744 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
749 const uint8_t *header;
750 uint8_t profile, sf_index, channel;
752 header = avctx->extradata;
753 CHECK(header != NULL);
755 // AudioSpecificInfo follows
756 // oooo offf fccc c000
757 // o - audioObjectType
758 // f - samplingFreqIndex
760 profile = ((header[0] & 0xf8) >> 3) - 1;
761 sf_index = (header[0] & 0x07) << 1 | (header[1] & 0x80) >> 7;
762 sr = get_sample_rate(sf_index);
764 ALOGE("unsupport the sample rate");
767 channel = (header[1] >> 3) & 0xf;
768 ALOGV("profile: %d, sf_index: %d, channel: %d", profile, sf_index, channel);
770 meta = MakeAACCodecSpecificData(profile, sf_index, channel);
771 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
773 case CODEC_ID_WMAV1: // TODO, version?
776 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
777 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
782 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
783 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
784 meta->setInt32(kKeyWMAVersion, kTypeWMA);
786 case CODEC_ID_WMAPRO:
789 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
790 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
791 meta->setInt32(kKeyWMAVersion, kTypeWMAPro);
793 case CODEC_ID_WMALOSSLESS:
794 ALOGV("WMALOSSLESS");
796 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
797 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
798 meta->setInt32(kKeyWMAVersion, kTypeWMALossLess);
800 case CODEC_ID_COOK: // audio codec in RMVB
803 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RA);
804 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
809 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_APE);
810 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
815 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_DTS);
816 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
821 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_FLAC);
822 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
825 CHECK(!"Should not be here. Unsupported codec.");
829 ALOGI("bit_rate: %d, sample_rate: %d, channels: %d, "
830 "bits_per_coded_sample: %d, block_align:%d",
831 avctx->bit_rate, avctx->sample_rate, avctx->channels,
832 avctx->bits_per_coded_sample, avctx->block_align);
834 meta->setInt32(kKeySampleRate, avctx->sample_rate);
835 meta->setInt32(kKeyChannelCount, avctx->channels);
836 meta->setInt32(kKeyBitspersample, avctx->bits_per_coded_sample);
837 meta->setInt32(kKeyBitRate, avctx->bit_rate);
838 meta->setInt32(kKeyBlockAlign, avctx->block_align);
839 if (mAudioStream->duration != AV_NOPTS_VALUE) {
840 int64_t duration = mAudioStream->duration * av_q2d(mAudioStream->time_base) * 1000000;
842 ALOGV("audio startTime: %lld", mAudioStream->start_time);
843 meta->setInt64(kKeyDuration, duration);
845 // default when no stream duration
846 meta->setInt64(kKeyDuration, mFormatCtx->duration);
849 ALOGV("create a audio track");
851 stream_index, new Track(this, meta, false, mAudioStream, &mAudioQ));
853 mDefersToCreateAudioTrack = false;
856 case AVMEDIA_TYPE_SUBTITLE:
858 CHECK(!"Should not be here. Unsupported media type.");
861 CHECK(!"Should not be here. Unsupported media type.");
867 void FFmpegExtractor::stream_component_close(int stream_index)
869 AVCodecContext *avctx;
871 if (stream_index < 0 || stream_index >= (int)mFormatCtx->nb_streams)
873 avctx = mFormatCtx->streams[stream_index]->codec;
875 switch (avctx->codec_type) {
876 case AVMEDIA_TYPE_VIDEO:
877 ALOGV("packet_queue_abort videoq");
878 packet_queue_abort(&mVideoQ);
879 /* wait until the end */
880 while (!mAbortRequest && !mVideoEOSReceived) {
881 ALOGV("wait for video received");
884 ALOGV("packet_queue_end videoq");
885 packet_queue_end(&mVideoQ);
887 case AVMEDIA_TYPE_AUDIO:
888 ALOGV("packet_queue_abort audioq");
889 packet_queue_abort(&mAudioQ);
890 while (!mAbortRequest && !mAudioEOSReceived) {
891 ALOGV("wait for audio received");
894 ALOGV("packet_queue_end audioq");
895 packet_queue_end(&mAudioQ);
897 case AVMEDIA_TYPE_SUBTITLE:
903 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
904 switch (avctx->codec_type) {
905 case AVMEDIA_TYPE_VIDEO:
907 mVideoStreamIdx = -1;
909 av_bitstream_filter_close(mVideoBsfc);
913 case AVMEDIA_TYPE_AUDIO:
915 mAudioStreamIdx = -1;
917 av_bitstream_filter_close(mAudioBsfc);
921 case AVMEDIA_TYPE_SUBTITLE:
928 void FFmpegExtractor::reachedEOS(enum AVMediaType media_type)
930 Mutex::Autolock autoLock(mLock);
932 if (media_type == AVMEDIA_TYPE_VIDEO) {
933 mVideoEOSReceived = true;
934 } else if (media_type == AVMEDIA_TYPE_AUDIO) {
935 mAudioEOSReceived = true;
939 /* seek in the stream */
940 int FFmpegExtractor::stream_seek(int64_t pos, enum AVMediaType media_type)
942 Mutex::Autolock autoLock(mLock);
944 if (mVideoStreamIdx >= 0 &&
945 mAudioStreamIdx >= 0 &&
946 media_type == AVMEDIA_TYPE_AUDIO &&
947 !mVideoEOSReceived) {
952 if (mAudioStreamIdx >= 0)
953 packet_queue_flush(&mAudioQ);
954 if (mVideoStreamIdx >= 0)
955 packet_queue_flush(&mVideoQ);
958 mSeekFlags &= ~AVSEEK_FLAG_BYTE;
965 int FFmpegExtractor::decode_interrupt_cb(void *ctx)
967 FFmpegExtractor *extrator = static_cast<FFmpegExtractor *>(ctx);
968 return extrator->mAbortRequest;
971 void FFmpegExtractor::print_error_ex(const char *filename, int err)
974 const char *errbuf_ptr = errbuf;
976 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
977 errbuf_ptr = strerror(AVUNERROR(err));
978 ALOGI("%s: %s\n", filename, errbuf_ptr);
981 void FFmpegExtractor::buildFileName(const sp<DataSource> &source)
984 ALOGI("android-source:%p", source.get());
985 // pass the addr of smart pointer("source")
986 snprintf(mFilename, sizeof(mFilename), "android-source:%p", source.get());
987 ALOGI("build mFilename: %s", mFilename);
989 const char *url = mDataSource->getNamURI();
991 ALOGI("url is error!");
995 if (!strcmp(url, "-")) {
996 av_strlcpy(mFilename, "pipe:", strlen("pipe:") + 1);
998 av_strlcpy(mFilename, url, strlen(url) + 1);
1000 ALOGI("build url: %s, mFilename: %s", url, mFilename);
1004 void FFmpegExtractor::setFFmpegDefaultOpts()
1007 #if DEBUG_DISABLE_VIDEO
1012 #if DEBUG_DISABLE_AUDIO
1018 mSeekByBytes = 0; /* seek by bytes 0=off 1=on -1=auto" */
1019 mDuration = AV_NOPTS_VALUE;
1020 mSeekPos = AV_NOPTS_VALUE;
1024 mVideoStreamIdx = -1;
1025 mAudioStreamIdx = -1;
1026 mVideoStream = NULL;
1027 mAudioStream = NULL;
1028 mVideoQInited = false;
1029 mAudioQInited = false;
1030 mDefersToCreateVideoTrack = false;
1031 mDefersToCreateAudioTrack = false;
1044 int FFmpegExtractor::initStreams()
1048 status_t status = UNKNOWN_ERROR;
1050 int ret = 0, audio_ret = -1, video_ret = -1;
1051 int pkt_in_play_range = 0;
1052 AVDictionaryEntry *t = NULL;
1053 AVDictionary **opts = NULL;
1054 int orig_nb_streams = 0;
1055 int st_index[AVMEDIA_TYPE_NB] = {0};
1056 int wanted_stream[AVMEDIA_TYPE_NB] = {0};
1057 st_index[AVMEDIA_TYPE_AUDIO] = -1;
1058 st_index[AVMEDIA_TYPE_VIDEO] = -1;
1059 wanted_stream[AVMEDIA_TYPE_AUDIO] = -1;
1060 wanted_stream[AVMEDIA_TYPE_VIDEO] = -1;
1061 const char *mime = NULL;
1063 setFFmpegDefaultOpts();
1065 status = initFFmpeg();
1070 mFFmpegInited = true;
1072 av_init_packet(&flush_pkt);
1073 flush_pkt.data = (uint8_t *)"FLUSH";
1076 mFormatCtx = avformat_alloc_context();
1079 ALOGE("oom for alloc avformat context");
1083 mFormatCtx->interrupt_callback.callback = decode_interrupt_cb;
1084 mFormatCtx->interrupt_callback.opaque = this;
1085 ALOGV("mFilename: %s", mFilename);
1086 err = avformat_open_input(&mFormatCtx, mFilename, NULL, &format_opts);
1088 print_error_ex(mFilename, err);
1092 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1093 ALOGE("Option %s not found.\n", t->key);
1094 //ret = AVERROR_OPTION_NOT_FOUND;
1100 mFormatCtx->flags |= AVFMT_FLAG_GENPTS;
1102 opts = setup_find_stream_info_opts(mFormatCtx, codec_opts);
1103 orig_nb_streams = mFormatCtx->nb_streams;
1105 err = avformat_find_stream_info(mFormatCtx, opts);
1107 ALOGE("%s: could not find codec parameters\n", mFilename);
1111 for (i = 0; i < orig_nb_streams; i++)
1112 av_dict_free(&opts[i]);
1115 mime = findMatchingContainer(mFormatCtx->iformat->name);
1116 CHECK(mime != NULL);
1117 mMeta->setCString(kKeyMIMEType, mime);
1120 mFormatCtx->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
1122 if (mSeekByBytes < 0)
1123 mSeekByBytes = !!(mFormatCtx->iformat->flags & AVFMT_TS_DISCONT);
1125 for (i = 0; i < (int)mFormatCtx->nb_streams; i++)
1126 mFormatCtx->streams[i]->discard = AVDISCARD_ALL;
1128 st_index[AVMEDIA_TYPE_VIDEO] =
1129 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_VIDEO,
1130 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
1132 st_index[AVMEDIA_TYPE_AUDIO] =
1133 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_AUDIO,
1134 wanted_stream[AVMEDIA_TYPE_AUDIO],
1135 st_index[AVMEDIA_TYPE_VIDEO],
1138 av_dump_format(mFormatCtx, 0, mFilename, 0);
1141 if (mFormatCtx->duration != AV_NOPTS_VALUE &&
1142 mFormatCtx->start_time != AV_NOPTS_VALUE) {
1143 int hours, mins, secs, us;
1145 ALOGV("file startTime: %lld", mFormatCtx->start_time);
1147 mDuration = mFormatCtx->duration;
1149 secs = mDuration / AV_TIME_BASE;
1150 us = mDuration % AV_TIME_BASE;
1155 ALOGI("the duration is %02d:%02d:%02d.%02d",
1156 hours, mins, secs, (100 * us) / AV_TIME_BASE);
1159 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
1160 audio_ret = stream_component_open(st_index[AVMEDIA_TYPE_AUDIO]);
1163 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
1164 video_ret = stream_component_open(st_index[AVMEDIA_TYPE_VIDEO]);
1167 if ( audio_ret < 0 && video_ret < 0) {
1168 ALOGE("%s: could not open codecs\n", mFilename);
1179 void FFmpegExtractor::deInitStreams()
1182 avformat_close_input(&mFormatCtx);
1185 if (mFFmpegInited) {
1190 status_t FFmpegExtractor::startReaderThread() {
1191 ALOGV("Starting reader thread");
1192 Mutex::Autolock autoLock(mLock);
1194 if (mReaderThreadStarted)
1197 pthread_attr_t attr;
1198 pthread_attr_init(&attr);
1199 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
1200 pthread_create(&mReaderThread, &attr, ReaderWrapper, this);
1201 pthread_attr_destroy(&attr);
1202 mReaderThreadStarted = true;
1203 ALOGD("Reader thread started");
1208 void FFmpegExtractor::stopReaderThread() {
1209 ALOGV("Stopping reader thread");
1210 Mutex::Autolock autoLock(mLock);
1212 if (!mReaderThreadStarted) {
1213 ALOGD("Reader thread have been stopped");
1220 pthread_join(mReaderThread, &dummy);
1221 mReaderThreadStarted = false;
1222 ALOGD("Reader thread stopped");
1226 void *FFmpegExtractor::ReaderWrapper(void *me) {
1227 ((FFmpegExtractor *)me)->readerEntry();
1232 void FFmpegExtractor::readerEntry() {
1234 AVPacket pkt1, *pkt = &pkt1;
1236 int pkt_in_play_range = 0;
1238 ALOGV("FFmpegExtractor enter thread(readerEntry)");
1240 mVideoEOSReceived = false;
1241 mAudioEOSReceived = false;
1247 if (mPaused != mLastPaused) {
1248 mLastPaused = mPaused;
1250 mReadPauseReturn = av_read_pause(mFormatCtx);
1252 av_read_play(mFormatCtx);
1254 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
1256 (!strcmp(mFormatCtx->iformat->name, "rtsp") ||
1257 (mFormatCtx->pb && !strncmp(mFilename, "mmsh:", 5)))) {
1258 /* wait 10 ms to avoid trying to get another packet */
1266 ALOGV("readerEntry, mSeekReq: %d", mSeekReq);
1267 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, mSeekPos, INT64_MAX, mSeekFlags);
1269 ALOGE("%s: error while seeking", mFormatCtx->filename);
1271 if (mAudioStreamIdx >= 0) {
1272 packet_queue_flush(&mAudioQ);
1273 packet_queue_put(&mAudioQ, &flush_pkt);
1275 if (mVideoStreamIdx >= 0) {
1276 packet_queue_flush(&mVideoQ);
1277 packet_queue_put(&mVideoQ, &flush_pkt);
1284 /* if the queue are full, no need to read more */
1285 if ( mAudioQ.size + mVideoQ.size > MAX_QUEUE_SIZE
1286 || ( (mAudioQ .size > MIN_AUDIOQ_SIZE || mAudioStreamIdx < 0)
1287 && (mVideoQ .nb_packets > MIN_FRAMES || mVideoStreamIdx < 0))) {
1288 #if DEBUG_READ_ENTRY
1289 ALOGV("readerEntry, is full, fuck");
1297 if (mVideoStreamIdx >= 0) {
1298 av_init_packet(pkt);
1301 pkt->stream_index = mVideoStreamIdx;
1302 packet_queue_put(&mVideoQ, pkt);
1304 if (mAudioStreamIdx >= 0) {
1305 av_init_packet(pkt);
1308 pkt->stream_index = mAudioStreamIdx;
1309 packet_queue_put(&mAudioQ, pkt);
1312 #if DEBUG_READ_ENTRY
1313 ALOGV("readerEntry, eof = 1, mVideoQ.size: %d, mVideoQ.nb_packets: %d, mAudioQ.size: %d, mAudioQ.nb_packets: %d",
1314 mVideoQ.size, mVideoQ.nb_packets, mAudioQ.size, mAudioQ.nb_packets);
1316 if (mAudioQ.size + mVideoQ.size == 0) {
1326 ret = av_read_frame(mFormatCtx, pkt);
1329 if (ret == AVERROR_EOF || url_feof(mFormatCtx->pb))
1330 if (ret == AVERROR_EOF) {
1331 //ALOGV("ret == AVERROR_EOF");
1333 if (url_feof(mFormatCtx->pb)) {
1334 //ALOGV("url_feof(mFormatCtx->pb)");
1339 if (mFormatCtx->pb && mFormatCtx->pb->error) {
1340 ALOGE("mFormatCtx->pb->error: %d", mFormatCtx->pb->error);
1347 if (pkt->stream_index == mVideoStreamIdx) {
1348 if (mDefersToCreateVideoTrack) {
1349 AVCodecContext *avctx = mFormatCtx->streams[mVideoStreamIdx]->codec;
1351 int i = parser_split(avctx, pkt->data, pkt->size);
1352 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
1353 if (avctx->extradata)
1354 av_freep(&avctx->extradata);
1355 avctx->extradata_size= i;
1356 avctx->extradata = (uint8_t *)av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1357 if (!avctx->extradata) {
1358 //return AVERROR(ENOMEM);
1359 ret = AVERROR(ENOMEM);
1362 // sps + pps(there may be sei in it)
1363 memcpy(avctx->extradata, pkt->data, avctx->extradata_size);
1364 memset(avctx->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1366 av_free_packet(pkt);
1370 stream_component_open(mVideoStreamIdx);
1371 if (!mDefersToCreateVideoTrack)
1372 ALOGI("probe packet counter: %d when create video track ok", mProbePkts);
1373 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1374 ALOGI("probe packet counter to max: %d, create video track: %d",
1375 mProbePkts, !mDefersToCreateVideoTrack);
1377 } else if (pkt->stream_index == mAudioStreamIdx) {
1381 AVCodecContext *avctx = mFormatCtx->streams[mAudioStreamIdx]->codec;
1382 if (mAudioBsfc && pkt && pkt->data) {
1383 ret = av_bitstream_filter_filter(mAudioBsfc, avctx, NULL, &outbuf, &outbuf_size,
1384 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
1386 if (ret < 0 ||!outbuf_size) {
1387 av_free_packet(pkt);
1390 if (outbuf && outbuf != pkt->data) {
1391 memmove(pkt->data, outbuf, outbuf_size);
1392 pkt->size = outbuf_size;
1395 if (mDefersToCreateAudioTrack) {
1396 if (avctx->extradata_size <= 0) {
1397 av_free_packet(pkt);
1400 stream_component_open(mAudioStreamIdx);
1401 if (!mDefersToCreateAudioTrack)
1402 ALOGI("probe packet counter: %d when create audio track ok", mProbePkts);
1403 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1404 ALOGI("probe packet counter to max: %d, create audio track: %d",
1405 mProbePkts, !mDefersToCreateAudioTrack);
1409 if (pkt->stream_index == mAudioStreamIdx) {
1410 packet_queue_put(&mAudioQ, pkt);
1411 } else if (pkt->stream_index == mVideoStreamIdx) {
1412 packet_queue_put(&mVideoQ, pkt);
1414 av_free_packet(pkt);
1417 /* wait until the end */
1418 while (!mAbortRequest) {
1424 ALOGI("reader thread goto end...");
1426 /* close each stream */
1427 if (mAudioStreamIdx >= 0)
1428 stream_component_close(mAudioStreamIdx);
1429 if (mVideoStreamIdx >= 0)
1430 stream_component_close(mVideoStreamIdx);
1432 avformat_close_input(&mFormatCtx);
1435 ALOGV("FFmpegExtractor exit thread(readerEntry)");
1438 ////////////////////////////////////////////////////////////////////////////////
1440 FFmpegExtractor::Track::Track(
1441 FFmpegExtractor *extractor, sp<MetaData> meta, bool isAVC,
1442 AVStream *stream, PacketQueue *queue)
1443 : mExtractor(extractor),
1450 /* H.264 Video Types */
1452 mNal2AnnexB = false;
1458 CHECK(meta->findData(kKeyAVCC, &type, &data, &size));
1460 const uint8_t *ptr = (const uint8_t *)data;
1463 CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
1465 // The number of bytes used to encode the length of a NAL unit.
1466 mNALLengthSize = 1 + (ptr[4] & 3);
1468 ALOGV("the stream is AVC, the length of a NAL unit: %d", mNALLengthSize);
1474 mMediaType = mStream->codec->codec_type;
1475 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1478 FFmpegExtractor::Track::~Track() {
1479 ALOGV("FFmpegExtractor::Track::~Track %s",
1480 av_get_media_type_string(mMediaType));
1485 status_t FFmpegExtractor::Track::start(MetaData *params) {
1486 ALOGV("FFmpegExtractor::Track::start %s",
1487 av_get_media_type_string(mMediaType));
1488 Mutex::Autolock autoLock(mLock);
1489 //mExtractor->startReaderThread();
1493 status_t FFmpegExtractor::Track::stop() {
1494 ALOGV("FFmpegExtractor::Track::stop %s",
1495 av_get_media_type_string(mMediaType));
1496 Mutex::Autolock autoLock(mLock);
1497 //mExtractor->stopReaderThread();
1501 sp<MetaData> FFmpegExtractor::Track::getFormat() {
1502 Mutex::Autolock autoLock(mLock);
1507 status_t FFmpegExtractor::Track::read(
1508 MediaBuffer **buffer, const ReadOptions *options) {
1511 Mutex::Autolock autoLock(mLock);
1514 bool seeking = false;
1515 bool waitKeyPkt = false;
1516 ReadOptions::SeekMode mode;
1517 int64_t pktTS = AV_NOPTS_VALUE;
1518 int64_t seekTimeUs = AV_NOPTS_VALUE;
1521 status_t status = OK;
1523 if (options && options->getSeekTo(&seekTimeUs, &mode)) {
1524 ALOGV("~~~%s seekTimeUs: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1525 /* add the stream start time */
1526 if (mStream->start_time != AV_NOPTS_VALUE)
1527 seekTimeUs += mStream->start_time * av_q2d(mStream->time_base) * 1000000;
1528 ALOGV("~~~%s seekTimeUs[+startTime]: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1530 if (mExtractor->stream_seek(seekTimeUs, mMediaType) == SEEK)
1535 if (mExtractor->packet_queue_get(mQueue, &pkt, 1) < 0) {
1536 mExtractor->reachedEOS(mMediaType);
1537 return ERROR_END_OF_STREAM;
1541 if (pkt.data != flush_pkt.data) {
1542 av_free_packet(&pkt);
1546 #if WAIT_KEY_PACKET_AFTER_SEEK
1552 if (pkt.data == flush_pkt.data) {
1553 ALOGV("read %s flush pkt", av_get_media_type_string(mMediaType));
1554 av_free_packet(&pkt);
1555 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1557 } else if (pkt.data == NULL && pkt.size == 0) {
1558 ALOGD("read %s eos pkt", av_get_media_type_string(mMediaType));
1559 av_free_packet(&pkt);
1560 mExtractor->reachedEOS(mMediaType);
1561 return ERROR_END_OF_STREAM;
1564 key = pkt.flags & AV_PKT_FLAG_KEY ? 1 : 0;
1567 if (pkt.pts == AV_NOPTS_VALUE)
1572 ALOGV("drop the no key packet");
1573 av_free_packet(&pkt);
1576 ALOGV("~~~~~~ got the key packet");
1581 if (mFirstKeyPktTimestamp == AV_NOPTS_VALUE) {
1582 // update the first key timestamp
1583 mFirstKeyPktTimestamp = pktTS;
1586 if (pktTS < mFirstKeyPktTimestamp) {
1587 ALOGV("drop the packet with the backward timestamp, maybe they are B-frames after I-frame ^_^");
1588 av_free_packet(&pkt);
1592 MediaBuffer *mediaBuffer = new MediaBuffer(pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
1593 mediaBuffer->meta_data()->clear();
1594 mediaBuffer->set_range(0, pkt.size);
1595 #if DISABLE_NAL_TO_ANNEXB
1596 mNal2AnnexB = false;
1598 if (mIsAVC && mNal2AnnexB) {
1599 /* Convert H.264 NAL format to annex b */
1600 if (mNALLengthSize >= 3 && mNALLengthSize <= 4 )
1602 uint8_t *dst = (uint8_t *)mediaBuffer->data();
1604 /* This only works for NAL sizes 3-4 */
1605 size_t len = pkt.size, i;
1606 uint8_t *ptr = pkt.data;
1607 while (len >= mNALLengthSize) {
1608 uint32_t nal_len = 0;
1609 for( i = 0; i < mNALLengthSize; i++ ) {
1610 nal_len = (nal_len << 8) | ptr[i];
1613 dst[mNALLengthSize - 1] = 1;
1614 if (nal_len > INT_MAX || nal_len > (unsigned int)len) {
1615 status = ERROR_MALFORMED;
1618 dst += mNALLengthSize;
1619 ptr += mNALLengthSize;
1620 len -= mNALLengthSize;
1622 memcpy(dst, ptr, nal_len);
1629 status = ERROR_MALFORMED;
1633 ALOGV("status != OK");
1634 mediaBuffer->release();
1636 av_free_packet(&pkt);
1637 return ERROR_MALFORMED;
1640 memcpy(mediaBuffer->data(), pkt.data, pkt.size);
1643 int64_t start_time = mStream->start_time != AV_NOPTS_VALUE ? mStream->start_time : 0;
1644 timeUs = (int64_t)((pktTS - start_time) * av_q2d(mStream->time_base) * 1000000);
1647 ALOGV("read %s pkt, size: %d, key: %d, pts: %lld, dts: %lld, timeUs[-startTime]: %llu us (%.2f secs)",
1648 av_get_media_type_string(mMediaType), pkt.size, key, pkt.pts, pkt.dts, timeUs, timeUs/1E6);
1651 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
1652 mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, key);
1654 *buffer = mediaBuffer;
1656 av_free_packet(&pkt);
1661 ////////////////////////////////////////////////////////////////////////////////
1665 const char *container;
1668 static formatmap FILE_FORMATS[] = {
1669 {"mpeg", MEDIA_MIMETYPE_CONTAINER_MPEG2PS },
1670 {"mpegts", MEDIA_MIMETYPE_CONTAINER_TS },
1671 {"mov,mp4,m4a,3gp,3g2,mj2", MEDIA_MIMETYPE_CONTAINER_MPEG4 },
1672 {"matroska,webm", MEDIA_MIMETYPE_CONTAINER_MATROSKA },
1673 {"asf", MEDIA_MIMETYPE_CONTAINER_ASF },
1674 {"rm", MEDIA_MIMETYPE_CONTAINER_RM },
1675 {"flv", MEDIA_MIMETYPE_CONTAINER_FLV },
1676 {"avi", MEDIA_MIMETYPE_CONTAINER_AVI },
1677 {"ape", MEDIA_MIMETYPE_CONTAINER_APE },
1678 {"dts", MEDIA_MIMETYPE_CONTAINER_DTS },
1679 {"flac", MEDIA_MIMETYPE_CONTAINER_FLAC },
1680 {"ac3", MEDIA_MIMETYPE_AUDIO_AC3 },
1681 {"wav", MEDIA_MIMETYPE_CONTAINER_WAV },
1684 static void adjustMPEG4Confidence(AVFormatContext *ic, float *confidence)
1686 AVDictionary *tags = NULL;
1687 AVDictionaryEntry *tag = NULL;
1689 tags = ic->metadata;
1691 //NOTE: You can use command to show these tags,
1692 //e.g. "ffprobe -show_format 2012.mov"
1694 tag = av_dict_get(tags, "major_brand", NULL, 0);
1699 ALOGV("major_brand tag is:%s", tag->value);
1701 //when MEDIA_MIMETYPE_CONTAINER_MPEG4
1702 //WTF, MPEG4Extractor.cpp can not extractor mov format
1703 //NOTE: isCompatibleBrand(MPEG4Extractor.cpp)
1704 // Won't promise that the following file types can be played.
1705 // Just give these file types a chance.
1706 // FOURCC('q', 't', ' ', ' '), // Apple's QuickTime
1708 if (!strcmp(tag->value, "qt ")) {
1709 ALOGI("format is mov, confidence should be larger than mpeg4");
1710 //the MEDIA_MIMETYPE_CONTAINER_MPEG4 of confidence is 0.4f
1711 *confidence = 0.41f;
1715 static void adjustVideoCodecConfidence(AVFormatContext *ic,
1716 enum AVCodecID codec_id, float *confidence)
1721 //TODO. if the other stream(e.g. mp3) is supported by stagefright
1722 static void adjustAudioCodecConfidence(AVFormatContext *ic,
1723 enum AVCodecID codec_id, float *confidence)
1727 ALOGI("ffmpeg can demux ac3 only");
1728 *confidence = 0.88f;
1732 //TODO. if the other stream(e.g. mp3) is supported by stagefright
1733 ALOGI("ffmpeg can demux mp1 and mp2 only");
1734 *confidence = 0.88f;
1741 static void adjustCodecConfidence(AVFormatContext *ic, float *confidence)
1743 unsigned int idx = 0;
1744 AVCodecContext *avctx = NULL;
1745 AVMediaType codec_type = AVMEDIA_TYPE_UNKNOWN;
1746 enum AVCodecID codec_id = AV_CODEC_ID_NONE;
1747 bool haveVideo = false;
1748 bool haveAudio = false;
1749 bool haveMP3 = false;
1751 for (idx = 0; idx < ic->nb_streams; idx++) {
1752 avctx = ic->streams[idx]->codec;
1753 codec_type = avctx->codec_type;
1754 codec_id = avctx->codec_id;
1756 if (codec_type == AVMEDIA_TYPE_VIDEO) {
1758 adjustVideoCodecConfidence(ic, codec_id, confidence);
1759 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
1761 adjustAudioCodecConfidence(ic, codec_id, confidence);
1762 if (codec_id == CODEC_ID_MP3)
1767 if (haveVideo && haveMP3) {
1768 *confidence = 0.22f; // larger than MP3Extractor an MP3Extractor
1772 static void adjustConfidenceIfNeeded(const char *mime,
1773 AVFormatContext *ic, float *confidence)
1776 if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4)) {
1777 adjustMPEG4Confidence(ic, confidence);
1783 adjustCodecConfidence(ic, confidence);
1786 static const char *findMatchingContainer(const char *name)
1789 const char *container = NULL;
1791 ALOGI("list the formats suppoted by ffmpeg: ");
1792 ALOGI("========================================");
1793 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1794 ALOGV("format_names[%02d]: %s", i, FILE_FORMATS[i].format);
1796 ALOGI("========================================");
1798 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1799 int len = strlen(FILE_FORMATS[i].format);
1800 if (!av_strncasecmp(name, FILE_FORMATS[i].format, len)) {
1801 container = FILE_FORMATS[i].container;
1809 static const char *SniffFFMPEGCommon(const char *url, float *confidence)
1813 const char *container = NULL;
1814 AVFormatContext *ic = NULL;
1815 AVDictionary **opts = NULL;
1816 size_t orig_nb_streams = 0;
1818 status_t status = initFFmpeg();
1820 ALOGE("could not init ffmpeg");
1824 ic = avformat_alloc_context();
1827 ALOGE("oom for alloc avformat context");
1831 err = avformat_open_input(&ic, url, NULL, NULL);
1833 ALOGE("avformat_open_input faild, url: %s err: %d", url, err);
1837 opts = setup_find_stream_info_opts(ic, codec_opts);
1838 orig_nb_streams = ic->nb_streams;
1839 err = avformat_find_stream_info(ic, opts);
1841 ALOGE("%s: could not find codec parameters", url);
1844 for (i = 0; i < orig_nb_streams; i++) {
1845 av_dict_free(&opts[i]);
1849 av_dump_format(ic, 0, url, 0);
1851 ALOGI("FFmpegExtrator, url: %s, format_name: %s, format_long_name: %s",
1852 url, ic->iformat->name, ic->iformat->long_name);
1854 container = findMatchingContainer(ic->iformat->name);
1857 adjustConfidenceIfNeeded(container, ic, confidence);
1862 avformat_close_input(&ic);
1872 static const char *LegacySniffFFMPEG(const sp<DataSource> &source, float *confidence)
1874 String8 uri = source->getUri();
1879 ALOGI("source url:%s", uri.string());
1881 return SniffFFMPEGCommon(uri.string(), confidence);
1884 static const char *BetterSniffFFMPEG(const sp<DataSource> &source, float *confidence)
1886 char url[128] = {0};
1888 ALOGI("android-source:%p", source.get());
1890 // pass the addr of smart pointer("source")
1891 snprintf(url, sizeof(url), "android-source:%p", source.get());
1893 return SniffFFMPEGCommon(url, confidence);
1897 const sp<DataSource> &source, String8 *mimeType, float *confidence,
1898 sp<AMessage> *meta) {
1899 ALOGV("SniffFFMPEG");
1901 *confidence = 0.08f; // be the last resort, by default
1903 const char *container = BetterSniffFFMPEG(source, confidence);
1905 ALOGW("sniff through BetterSniffFFMPEG failed, try LegacySniffFFMPEG");
1906 container = LegacySniffFFMPEG(source, confidence);
1908 ALOGI("sniff through LegacySniffFFMPEG success");
1911 ALOGI("sniff through BetterSniffFFMPEG success");
1914 if (container == NULL) {
1915 ALOGD("SniffFFMPEG failed to sniff this source");
1919 ALOGD("ffmpeg detected media content as '%s' with confidence %.2f",
1920 container, *confidence);
1922 /* use MPEG4Extractor(not extended extractor) for HTTP source only */
1923 if (!strcasecmp(container, MEDIA_MIMETYPE_CONTAINER_MPEG4)
1924 && (source->flags() & DataSource::kIsCachingDataSource)) {
1925 ALOGI("support container: %s, but it is caching data source, "
1926 "Don't use ffmpegextractor", container);
1930 mimeType->setTo(container);
1932 *meta = new AMessage;
1933 (*meta)->setString("extended-extractor", "extended-extractor");
1934 (*meta)->setString("extended-extractor-subtype", "ffmpegextractor");
1937 char value[PROPERTY_VALUE_MAX];
1938 property_get("sys.media.parser.ffmpeg", value, "0");
1940 ALOGI("[debug] parser use ffmpeg");
1941 *confidence = 0.88f;
1944 if (*confidence == 0.88f) {
1945 (*meta)->setString("extended-extractor-use", "ffmpegextractor");
1951 MediaExtractor *CreateFFmpegExtractor(const sp<DataSource> &source, const char *mime, const sp<AMessage> &meta) {
1952 MediaExtractor *ret = NULL;
1954 if (meta.get() && meta->findString("extended-extractor", ¬use) && (
1955 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4) ||
1956 !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_MPEG) ||
1957 !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AC3) ||
1958 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MOV) ||
1959 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MATROSKA) ||
1960 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_TS) ||
1961 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2PS) ||
1962 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_AVI) ||
1963 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_ASF) ||
1964 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WEBM) ||
1965 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMV) ||
1966 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPG) ||
1967 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLV) ||
1968 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DIVX) ||
1969 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RM) ||
1970 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WAV) ||
1971 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLAC) ||
1972 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_APE) ||
1973 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DTS) ||
1974 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MP2) ||
1975 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RA) ||
1976 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMA))) {
1977 ret = new FFmpegExtractor(source);
1980 ALOGD("%ssupported mime: %s", (ret ? "" : "un"), mime);
1984 } // namespace android
1986 extern "C" void getExtractorPlugin(android::MediaExtractor::Plugin *plugin)
1988 plugin->sniff = android::SniffFFMPEG;
1989 plugin->create = android::CreateFFmpegExtractor;