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 struct FFmpegExtractor::Track : public MediaSource {
71 Track(FFmpegExtractor *extractor, sp<MetaData> meta, bool isAVC,
72 AVStream *stream, PacketQueue *queue);
74 virtual status_t start(MetaData *params);
75 virtual status_t stop();
76 virtual sp<MetaData> getFormat();
78 virtual status_t read(
79 MediaBuffer **buffer, const ReadOptions *options);
85 friend struct FFmpegExtractor;
87 FFmpegExtractor *mExtractor;
90 enum AVMediaType mMediaType;
95 size_t mNALLengthSize;
101 int64_t mFirstKeyPktTimestamp;
103 DISALLOW_EVIL_CONSTRUCTORS(Track);
106 ////////////////////////////////////////////////////////////////////////////////
108 FFmpegExtractor::FFmpegExtractor(const sp<DataSource> &source)
109 : mDataSource(source),
111 mFFmpegInited(false),
113 mReaderThreadStarted(false) {
114 ALOGV("FFmpegExtractor::FFmpegExtractor");
116 buildFileName(source);
118 int err = initStreams();
120 ALOGE("failed to init ffmpeg");
124 // start reader here, as we want to extract extradata from bitstream if no extradata
127 while(mProbePkts <= EXTRACTOR_MAX_PROBE_PACKETS && !mEOF &&
128 (mFormatCtx->pb ? !mFormatCtx->pb->error : 1) &&
129 (mDefersToCreateVideoTrack || mDefersToCreateAudioTrack)) {
130 // FIXME, i am so lazy! Should use pthread_cond_wait to wait conditions
134 ALOGV("mProbePkts: %d, mEOF: %d, pb->error(if has): %d, mDefersToCreateVideoTrack: %d, mDefersToCreateAudioTrack: %d",
135 mProbePkts, mEOF, mFormatCtx->pb ? mFormatCtx->pb->error : 0, mDefersToCreateVideoTrack, mDefersToCreateAudioTrack);
140 FFmpegExtractor::~FFmpegExtractor() {
141 ALOGV("FFmpegExtractor::~FFmpegExtractor");
143 // stop reader here if no track!
149 size_t FFmpegExtractor::countTracks() {
150 return mInitCheck == OK ? mTracks.size() : 0;
153 sp<MediaSource> FFmpegExtractor::getTrack(size_t index) {
154 ALOGV("FFmpegExtractor::getTrack[%d]", index);
156 if (mInitCheck != OK) {
160 if (index >= mTracks.size()) {
164 return mTracks.valueAt(index);
167 sp<MetaData> FFmpegExtractor::getTrackMetaData(size_t index, uint32_t flags) {
168 ALOGV("FFmpegExtractor::getTrackMetaData[%d]", index);
170 if (mInitCheck != OK) {
174 if (index >= mTracks.size()) {
178 return mTracks.valueAt(index)->getFormat();
181 sp<MetaData> FFmpegExtractor::getMetaData() {
182 ALOGV("FFmpegExtractor::getMetaData");
184 if (mInitCheck != OK) {
188 sp<MetaData> meta = new MetaData;
190 meta->setCString(kKeyMIMEType, "video/ffmpeg");
195 uint32_t FFmpegExtractor::flags() const {
196 ALOGV("FFmpegExtractor::flags");
198 if (mInitCheck != OK) {
202 uint32_t flags = CAN_PAUSE;
204 if (mFormatCtx->duration != AV_NOPTS_VALUE) {
205 flags |= CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK;
211 void FFmpegExtractor::packet_queue_init(PacketQueue *q)
213 memset(q, 0, sizeof(PacketQueue));
214 pthread_mutex_init(&q->mutex, NULL);
215 pthread_cond_init(&q->cond, NULL);
216 packet_queue_put(q, &flush_pkt);
219 void FFmpegExtractor::packet_queue_flush(PacketQueue *q)
221 AVPacketList *pkt, *pkt1;
223 pthread_mutex_lock(&q->mutex);
224 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
226 av_free_packet(&pkt->pkt);
233 pthread_mutex_unlock(&q->mutex);
236 void FFmpegExtractor::packet_queue_end(PacketQueue *q)
238 packet_queue_flush(q);
241 void FFmpegExtractor::packet_queue_abort(PacketQueue *q)
243 pthread_mutex_lock(&q->mutex);
245 q->abort_request = 1;
247 pthread_cond_signal(&q->cond);
249 pthread_mutex_unlock(&q->mutex);
252 int FFmpegExtractor::packet_queue_put(PacketQueue *q, AVPacket *pkt)
256 /* duplicate the packet */
257 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
260 pkt1 = (AVPacketList *)av_malloc(sizeof(AVPacketList));
266 pthread_mutex_lock(&q->mutex);
272 q->last_pkt->next = pkt1;
275 //q->size += pkt1->pkt.size + sizeof(*pkt1);
276 q->size += pkt1->pkt.size;
277 pthread_cond_signal(&q->cond);
279 pthread_mutex_unlock(&q->mutex);
283 /* packet queue handling */
284 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
285 int FFmpegExtractor::packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
290 pthread_mutex_lock(&q->mutex);
293 if (q->abort_request) {
300 q->first_pkt = pkt1->next;
304 //q->size -= pkt1->pkt.size + sizeof(*pkt1);
305 q->size -= pkt1->pkt.size;
314 pthread_cond_wait(&q->cond, &q->mutex);
317 pthread_mutex_unlock(&q->mutex);
321 static void EncodeSize14(uint8_t **_ptr, size_t size) {
322 CHECK_LE(size, 0x3fff);
324 uint8_t *ptr = *_ptr;
326 *ptr++ = 0x80 | (size >> 7);
327 *ptr++ = size & 0x7f;
332 static sp<ABuffer> MakeMPEGVideoESDS(const sp<ABuffer> &csd) {
333 sp<ABuffer> esds = new ABuffer(csd->size() + 25);
335 uint8_t *ptr = esds->data();
337 EncodeSize14(&ptr, 22 + csd->size());
339 *ptr++ = 0x00; // ES_ID
342 *ptr++ = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag
345 EncodeSize14(&ptr, 16 + csd->size());
347 *ptr++ = 0x40; // Audio ISO/IEC 14496-3
349 for (size_t i = 0; i < 12; ++i) {
354 EncodeSize14(&ptr, csd->size());
356 memcpy(ptr, csd->data(), csd->size());
361 // Returns the sample rate based on the sampling frequency index
362 static uint32_t get_sample_rate(const uint8_t sf_index)
364 static const uint32_t sample_rates[] =
366 96000, 88200, 64000, 48000, 44100, 32000,
367 24000, 22050, 16000, 12000, 11025, 8000
370 if (sf_index < sizeof(sample_rates) / sizeof(sample_rates[0])) {
371 return sample_rates[sf_index];
377 int FFmpegExtractor::check_extradata(AVCodecContext *avctx)
379 const char *name = NULL;
380 bool *defersToCreateTrack = NULL;
381 AVBitStreamFilterContext **bsfc = NULL;
384 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
386 defersToCreateTrack = &mDefersToCreateVideoTrack;
387 } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO){
389 defersToCreateTrack = &mDefersToCreateAudioTrack;
393 if (avctx->codec_id == CODEC_ID_MP3 ||
394 avctx->codec_id == CODEC_ID_MP1 ||
395 avctx->codec_id == CODEC_ID_MP2 ||
396 avctx->codec_id == CODEC_ID_AC3 ||
397 avctx->codec_id == CODEC_ID_DTS ||
398 avctx->codec_id == CODEC_ID_H263 ||
399 avctx->codec_id == CODEC_ID_H263P ||
400 avctx->codec_id == CODEC_ID_H263I ||
401 avctx->codec_id == CODEC_ID_WMV1)
404 // is extradata compatible with android?
405 if (avctx->codec_id != CODEC_ID_AAC) {
406 int is_compatible = is_extradata_compatible_with_android(avctx);
407 if (!is_compatible) {
408 ALOGI("%s extradata is not compatible with android, should to extract it from bitstream",
409 av_get_media_type_string(avctx->codec_type));
410 *defersToCreateTrack = true;
411 *bsfc = NULL; // H264 don't need bsfc, only AAC?
417 if (avctx->codec_id == CODEC_ID_AAC) {
418 name = "aac_adtstoasc";
421 if (avctx->extradata_size <= 0) {
422 ALOGI("No %s extradata found, should to extract it from bitstream",
423 av_get_media_type_string(avctx->codec_type));
424 *defersToCreateTrack = true;
425 //CHECK(name != NULL);
426 if (!*bsfc && name) {
427 *bsfc = av_bitstream_filter_init(name);
429 ALOGE("Cannot open the %s BSF!", name);
430 *defersToCreateTrack = false;
433 ALOGV("open the %s bsf", name);
443 void FFmpegExtractor::printTime(int64_t time)
445 int hours, mins, secs, us;
447 if (time == AV_NOPTS_VALUE)
450 secs = time / AV_TIME_BASE;
451 us = time % AV_TIME_BASE;
456 ALOGI("the time is %02d:%02d:%02d.%02d",
457 hours, mins, secs, (100 * us) / AV_TIME_BASE);
460 int FFmpegExtractor::stream_component_open(int stream_index)
462 AVCodecContext *avctx = NULL;
463 sp<MetaData> meta = NULL;
465 bool supported = false;
467 const void *data = NULL;
471 ALOGI("stream_index: %d", stream_index);
472 if (stream_index < 0 || stream_index >= (int)mFormatCtx->nb_streams)
474 avctx = mFormatCtx->streams[stream_index]->codec;
476 switch(avctx->codec_id) {
487 case CODEC_ID_MPEG2VIDEO:
494 case CODEC_ID_WMAPRO:
495 case CODEC_ID_WMALOSSLESS:
509 ALOGE("unsupport the codec, id: 0x%0x", avctx->codec_id);
512 ALOGV("support the codec");
515 ssize_t index = mTracks.indexOfKey(stream_index);
518 ALOGE("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 ALOGV("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 ALOGV("video stream extradata:");
554 hexdump(avctx->extradata, avctx->extradata_size);
556 ALOGV("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 ALOGI("width: %d, height: %d, bit_rate: %d",
657 avctx->width, avctx->height, avctx->bit_rate);
659 meta->setInt32(kKeyWidth, avctx->width);
660 meta->setInt32(kKeyHeight, avctx->height);
661 if (avctx->bit_rate > 0)
662 meta->setInt32(kKeyBitRate, avctx->bit_rate);
663 if (mVideoStream->duration != AV_NOPTS_VALUE) {
664 int64_t duration = mVideoStream->duration * av_q2d(mVideoStream->time_base) * 1000000;
666 ALOGV("video startTime: %lld", mVideoStream->start_time);
667 meta->setInt64(kKeyDuration, duration);
669 // default when no stream duration
670 meta->setInt64(kKeyDuration, mFormatCtx->duration);
673 ALOGV("create a video track");
675 stream_index, new Track(this, meta, isAVC, mVideoStream, &mVideoQ));
677 mDefersToCreateVideoTrack = false;
680 case AVMEDIA_TYPE_AUDIO:
681 if (mAudioStreamIdx == -1)
682 mAudioStreamIdx = stream_index;
683 if (mAudioStream == NULL)
684 mAudioStream = mFormatCtx->streams[stream_index];
685 if (!mAudioQInited) {
686 packet_queue_init(&mAudioQ);
687 mAudioQInited = true;
690 ret = check_extradata(avctx);
693 // disable the stream
694 mAudioStreamIdx = -1;
696 packet_queue_end(&mAudioQ);
697 mAudioQInited = false;
698 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
703 if (avctx->extradata) {
704 ALOGV("audio stream extradata:");
705 hexdump(avctx->extradata, avctx->extradata_size);
707 ALOGV("audio stream no extradata, but we can ignore it.");
710 switch(avctx->codec_id) {
714 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
719 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
724 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
729 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
734 const uint8_t *header;
735 uint8_t profile, sf_index, channel;
737 header = avctx->extradata;
738 CHECK(header != NULL);
740 // AudioSpecificInfo follows
741 // oooo offf fccc c000
742 // o - audioObjectType
743 // f - samplingFreqIndex
745 profile = ((header[0] & 0xf8) >> 3) - 1;
746 sf_index = (header[0] & 0x07) << 1 | (header[1] & 0x80) >> 7;
747 sr = get_sample_rate(sf_index);
749 ALOGE("unsupport the sample rate");
752 channel = (header[1] >> 3) & 0xf;
753 ALOGV("profile: %d, sf_index: %d, channel: %d", profile, sf_index, channel);
755 meta = MakeAACCodecSpecificData(profile, sf_index, channel);
756 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
758 case CODEC_ID_WMAV1: // TODO, version?
761 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
762 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
767 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
768 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
769 meta->setInt32(kKeyWMAVersion, kTypeWMA);
771 case CODEC_ID_WMAPRO:
774 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
775 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
776 meta->setInt32(kKeyWMAVersion, kTypeWMAPro);
778 case CODEC_ID_WMALOSSLESS:
779 ALOGV("WMALOSSLESS");
781 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
782 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
783 meta->setInt32(kKeyWMAVersion, kTypeWMALossLess);
785 case CODEC_ID_COOK: // audio codec in RMVB
788 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RA);
789 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
794 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_APE);
795 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
800 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_DTS);
801 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
806 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_FLAC);
807 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
810 CHECK(!"Should not be here. Unsupported codec.");
814 ALOGI("bit_rate: %d, sample_rate: %d, channels: %d, "
815 "bits_per_coded_sample: %d, block_align:%d",
816 avctx->bit_rate, avctx->sample_rate, avctx->channels,
817 avctx->bits_per_coded_sample, avctx->block_align);
819 meta->setInt32(kKeySampleRate, avctx->sample_rate);
820 meta->setInt32(kKeyChannelCount, avctx->channels);
821 meta->setInt32(kKeyBitspersample, avctx->bits_per_coded_sample);
822 meta->setInt32(kKeyBitRate, avctx->bit_rate);
823 meta->setInt32(kKeyBlockAlign, avctx->block_align);
824 if (mAudioStream->duration != AV_NOPTS_VALUE) {
825 int64_t duration = mAudioStream->duration * av_q2d(mAudioStream->time_base) * 1000000;
827 ALOGV("audio startTime: %lld", mAudioStream->start_time);
828 meta->setInt64(kKeyDuration, duration);
830 // default when no stream duration
831 meta->setInt64(kKeyDuration, mFormatCtx->duration);
834 ALOGV("create a audio track");
836 stream_index, new Track(this, meta, false, mAudioStream, &mAudioQ));
838 mDefersToCreateAudioTrack = false;
841 case AVMEDIA_TYPE_SUBTITLE:
843 CHECK(!"Should not be here. Unsupported media type.");
846 CHECK(!"Should not be here. Unsupported media type.");
852 void FFmpegExtractor::stream_component_close(int stream_index)
854 AVCodecContext *avctx;
856 if (stream_index < 0 || stream_index >= (int)mFormatCtx->nb_streams)
858 avctx = mFormatCtx->streams[stream_index]->codec;
860 switch (avctx->codec_type) {
861 case AVMEDIA_TYPE_VIDEO:
862 ALOGV("packet_queue_abort videoq");
863 packet_queue_abort(&mVideoQ);
864 /* wait until the end */
865 while (!mAbortRequest && !mVideoEOSReceived) {
866 ALOGV("wait for video received");
869 ALOGV("packet_queue_end videoq");
870 packet_queue_end(&mVideoQ);
872 case AVMEDIA_TYPE_AUDIO:
873 ALOGV("packet_queue_abort audioq");
874 packet_queue_abort(&mAudioQ);
875 while (!mAbortRequest && !mAudioEOSReceived) {
876 ALOGV("wait for audio received");
879 ALOGV("packet_queue_end audioq");
880 packet_queue_end(&mAudioQ);
882 case AVMEDIA_TYPE_SUBTITLE:
888 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
889 switch (avctx->codec_type) {
890 case AVMEDIA_TYPE_VIDEO:
892 mVideoStreamIdx = -1;
894 av_bitstream_filter_close(mVideoBsfc);
898 case AVMEDIA_TYPE_AUDIO:
900 mAudioStreamIdx = -1;
902 av_bitstream_filter_close(mAudioBsfc);
906 case AVMEDIA_TYPE_SUBTITLE:
913 void FFmpegExtractor::reachedEOS(enum AVMediaType media_type)
915 Mutex::Autolock autoLock(mLock);
917 if (media_type == AVMEDIA_TYPE_VIDEO) {
918 mVideoEOSReceived = true;
919 } else if (media_type == AVMEDIA_TYPE_AUDIO) {
920 mAudioEOSReceived = true;
924 /* seek in the stream */
925 int FFmpegExtractor::stream_seek(int64_t pos, enum AVMediaType media_type)
927 Mutex::Autolock autoLock(mLock);
929 if (mVideoStreamIdx >= 0 &&
930 mAudioStreamIdx >= 0 &&
931 media_type == AVMEDIA_TYPE_AUDIO &&
932 !mVideoEOSReceived) {
937 if (mAudioStreamIdx >= 0)
938 packet_queue_flush(&mAudioQ);
939 if (mVideoStreamIdx >= 0)
940 packet_queue_flush(&mVideoQ);
943 mSeekFlags &= ~AVSEEK_FLAG_BYTE;
950 int FFmpegExtractor::decode_interrupt_cb(void *ctx)
952 FFmpegExtractor *extrator = static_cast<FFmpegExtractor *>(ctx);
953 return extrator->mAbortRequest;
956 void FFmpegExtractor::print_error_ex(const char *filename, int err)
959 const char *errbuf_ptr = errbuf;
961 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
962 errbuf_ptr = strerror(AVUNERROR(err));
963 ALOGI("%s: %s\n", filename, errbuf_ptr);
966 void FFmpegExtractor::buildFileName(const sp<DataSource> &source)
969 ALOGI("android-source:%p", source.get());
970 // pass the addr of smart pointer("source")
971 snprintf(mFilename, sizeof(mFilename), "android-source:%p", source.get());
972 ALOGI("build mFilename: %s", mFilename);
974 const char *url = mDataSource->getNamURI();
976 ALOGI("url is error!");
980 if (!strcmp(url, "-")) {
981 av_strlcpy(mFilename, "pipe:", strlen("pipe:") + 1);
983 av_strlcpy(mFilename, url, strlen(url) + 1);
985 ALOGI("build url: %s, mFilename: %s", url, mFilename);
989 void FFmpegExtractor::setFFmpegDefaultOpts()
992 #if DEBUG_DISABLE_VIDEO
997 #if DEBUG_DISABLE_AUDIO
1003 mSeekByBytes = 0; /* seek by bytes 0=off 1=on -1=auto" */
1004 mDuration = AV_NOPTS_VALUE;
1005 mSeekPos = AV_NOPTS_VALUE;
1009 mVideoStreamIdx = -1;
1010 mAudioStreamIdx = -1;
1011 mVideoStream = NULL;
1012 mAudioStream = NULL;
1013 mVideoQInited = false;
1014 mAudioQInited = false;
1015 mDefersToCreateVideoTrack = false;
1016 mDefersToCreateAudioTrack = false;
1029 int FFmpegExtractor::initStreams()
1033 status_t status = UNKNOWN_ERROR;
1035 int ret = 0, audio_ret = -1, video_ret = -1;
1036 int pkt_in_play_range = 0;
1037 AVDictionaryEntry *t = NULL;
1038 AVDictionary **opts = NULL;
1039 int orig_nb_streams = 0;
1040 int st_index[AVMEDIA_TYPE_NB] = {0};
1041 int wanted_stream[AVMEDIA_TYPE_NB] = {0};
1042 st_index[AVMEDIA_TYPE_AUDIO] = -1;
1043 st_index[AVMEDIA_TYPE_VIDEO] = -1;
1044 wanted_stream[AVMEDIA_TYPE_AUDIO] = -1;
1045 wanted_stream[AVMEDIA_TYPE_VIDEO] = -1;
1047 setFFmpegDefaultOpts();
1049 status = initFFmpeg();
1054 mFFmpegInited = true;
1056 av_init_packet(&flush_pkt);
1057 flush_pkt.data = (uint8_t *)"FLUSH";
1060 mFormatCtx = avformat_alloc_context();
1063 ALOGE("oom for alloc avformat context");
1067 mFormatCtx->interrupt_callback.callback = decode_interrupt_cb;
1068 mFormatCtx->interrupt_callback.opaque = this;
1069 ALOGV("mFilename: %s", mFilename);
1070 err = avformat_open_input(&mFormatCtx, mFilename, NULL, &format_opts);
1072 print_error_ex(mFilename, err);
1076 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1077 ALOGE("Option %s not found.\n", t->key);
1078 //ret = AVERROR_OPTION_NOT_FOUND;
1084 mFormatCtx->flags |= AVFMT_FLAG_GENPTS;
1086 opts = setup_find_stream_info_opts(mFormatCtx, codec_opts);
1087 orig_nb_streams = mFormatCtx->nb_streams;
1089 err = avformat_find_stream_info(mFormatCtx, opts);
1091 ALOGE("%s: could not find codec parameters\n", mFilename);
1095 for (i = 0; i < orig_nb_streams; i++)
1096 av_dict_free(&opts[i]);
1100 mFormatCtx->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
1102 if (mSeekByBytes < 0)
1103 mSeekByBytes = !!(mFormatCtx->iformat->flags & AVFMT_TS_DISCONT);
1105 for (i = 0; i < (int)mFormatCtx->nb_streams; i++)
1106 mFormatCtx->streams[i]->discard = AVDISCARD_ALL;
1108 st_index[AVMEDIA_TYPE_VIDEO] =
1109 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_VIDEO,
1110 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
1112 st_index[AVMEDIA_TYPE_AUDIO] =
1113 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_AUDIO,
1114 wanted_stream[AVMEDIA_TYPE_AUDIO],
1115 st_index[AVMEDIA_TYPE_VIDEO],
1118 av_dump_format(mFormatCtx, 0, mFilename, 0);
1121 if (mFormatCtx->duration != AV_NOPTS_VALUE &&
1122 mFormatCtx->start_time != AV_NOPTS_VALUE) {
1123 int hours, mins, secs, us;
1125 ALOGV("file startTime: %lld", mFormatCtx->start_time);
1127 mDuration = mFormatCtx->duration;
1129 secs = mDuration / AV_TIME_BASE;
1130 us = mDuration % AV_TIME_BASE;
1135 ALOGI("the duration is %02d:%02d:%02d.%02d",
1136 hours, mins, secs, (100 * us) / AV_TIME_BASE);
1139 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
1140 audio_ret = stream_component_open(st_index[AVMEDIA_TYPE_AUDIO]);
1143 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
1144 video_ret = stream_component_open(st_index[AVMEDIA_TYPE_VIDEO]);
1147 if ( audio_ret < 0 && video_ret < 0) {
1148 ALOGE("%s: could not open codecs\n", mFilename);
1159 void FFmpegExtractor::deInitStreams()
1162 avformat_close_input(&mFormatCtx);
1165 if (mFFmpegInited) {
1170 status_t FFmpegExtractor::startReaderThread() {
1171 ALOGV("Starting reader thread");
1172 Mutex::Autolock autoLock(mLock);
1174 if (mReaderThreadStarted)
1177 pthread_attr_t attr;
1178 pthread_attr_init(&attr);
1179 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
1180 pthread_create(&mReaderThread, &attr, ReaderWrapper, this);
1181 pthread_attr_destroy(&attr);
1182 mReaderThreadStarted = true;
1183 ALOGD("Reader thread started");
1188 void FFmpegExtractor::stopReaderThread() {
1189 ALOGV("Stopping reader thread");
1190 Mutex::Autolock autoLock(mLock);
1192 if (!mReaderThreadStarted) {
1193 ALOGD("Reader thread have been stopped");
1200 pthread_join(mReaderThread, &dummy);
1201 mReaderThreadStarted = false;
1202 ALOGD("Reader thread stopped");
1206 void *FFmpegExtractor::ReaderWrapper(void *me) {
1207 ((FFmpegExtractor *)me)->readerEntry();
1212 void FFmpegExtractor::readerEntry() {
1214 AVPacket pkt1, *pkt = &pkt1;
1216 int pkt_in_play_range = 0;
1218 ALOGV("FFmpegExtractor enter thread(readerEntry)");
1220 mVideoEOSReceived = false;
1221 mAudioEOSReceived = false;
1227 if (mPaused != mLastPaused) {
1228 mLastPaused = mPaused;
1230 mReadPauseReturn = av_read_pause(mFormatCtx);
1232 av_read_play(mFormatCtx);
1234 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
1236 (!strcmp(mFormatCtx->iformat->name, "rtsp") ||
1237 (mFormatCtx->pb && !strncmp(mFilename, "mmsh:", 5)))) {
1238 /* wait 10 ms to avoid trying to get another packet */
1246 ALOGV("readerEntry, mSeekReq: %d", mSeekReq);
1247 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, mSeekPos, INT64_MAX, mSeekFlags);
1249 ALOGE("%s: error while seeking", mFormatCtx->filename);
1251 if (mAudioStreamIdx >= 0) {
1252 packet_queue_flush(&mAudioQ);
1253 packet_queue_put(&mAudioQ, &flush_pkt);
1255 if (mVideoStreamIdx >= 0) {
1256 packet_queue_flush(&mVideoQ);
1257 packet_queue_put(&mVideoQ, &flush_pkt);
1264 /* if the queue are full, no need to read more */
1265 if ( mAudioQ.size + mVideoQ.size > MAX_QUEUE_SIZE
1266 || ( (mAudioQ .size > MIN_AUDIOQ_SIZE || mAudioStreamIdx < 0)
1267 && (mVideoQ .nb_packets > MIN_FRAMES || mVideoStreamIdx < 0))) {
1268 #if DEBUG_READ_ENTRY
1269 ALOGV("readerEntry, is full, fuck");
1277 if (mVideoStreamIdx >= 0) {
1278 av_init_packet(pkt);
1281 pkt->stream_index = mVideoStreamIdx;
1282 packet_queue_put(&mVideoQ, pkt);
1284 if (mAudioStreamIdx >= 0) {
1285 av_init_packet(pkt);
1288 pkt->stream_index = mAudioStreamIdx;
1289 packet_queue_put(&mAudioQ, pkt);
1292 #if DEBUG_READ_ENTRY
1293 ALOGV("readerEntry, eof = 1, mVideoQ.size: %d, mVideoQ.nb_packets: %d, mAudioQ.size: %d, mAudioQ.nb_packets: %d",
1294 mVideoQ.size, mVideoQ.nb_packets, mAudioQ.size, mAudioQ.nb_packets);
1296 if (mAudioQ.size + mVideoQ.size == 0) {
1306 ret = av_read_frame(mFormatCtx, pkt);
1309 if (ret == AVERROR_EOF || url_feof(mFormatCtx->pb))
1310 if (ret == AVERROR_EOF) {
1311 //ALOGV("ret == AVERROR_EOF");
1313 if (url_feof(mFormatCtx->pb)) {
1314 //ALOGV("url_feof(mFormatCtx->pb)");
1319 if (mFormatCtx->pb && mFormatCtx->pb->error) {
1320 ALOGE("mFormatCtx->pb->error: %d", mFormatCtx->pb->error);
1327 if (pkt->stream_index == mVideoStreamIdx) {
1328 if (mDefersToCreateVideoTrack) {
1329 AVCodecContext *avctx = mFormatCtx->streams[mVideoStreamIdx]->codec;
1331 int i = parser_split(avctx, pkt->data, pkt->size);
1332 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
1333 if (avctx->extradata)
1334 av_freep(&avctx->extradata);
1335 avctx->extradata_size= i;
1336 avctx->extradata = (uint8_t *)av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1337 if (!avctx->extradata) {
1338 //return AVERROR(ENOMEM);
1339 ret = AVERROR(ENOMEM);
1342 // sps + pps(there may be sei in it)
1343 memcpy(avctx->extradata, pkt->data, avctx->extradata_size);
1344 memset(avctx->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1346 av_free_packet(pkt);
1350 stream_component_open(mVideoStreamIdx);
1351 if (!mDefersToCreateVideoTrack)
1352 ALOGI("probe packet counter: %d when create video track ok", mProbePkts);
1353 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1354 ALOGI("probe packet counter to max: %d, create video track: %d",
1355 mProbePkts, !mDefersToCreateVideoTrack);
1357 } else if (pkt->stream_index == mAudioStreamIdx) {
1361 AVCodecContext *avctx = mFormatCtx->streams[mAudioStreamIdx]->codec;
1362 if (mAudioBsfc && pkt && pkt->data) {
1363 ret = av_bitstream_filter_filter(mAudioBsfc, avctx, NULL, &outbuf, &outbuf_size,
1364 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
1366 if (ret < 0 ||!outbuf_size) {
1367 av_free_packet(pkt);
1370 if (outbuf && outbuf != pkt->data) {
1371 memmove(pkt->data, outbuf, outbuf_size);
1372 pkt->size = outbuf_size;
1375 if (mDefersToCreateAudioTrack) {
1376 if (avctx->extradata_size <= 0) {
1377 av_free_packet(pkt);
1380 stream_component_open(mAudioStreamIdx);
1381 if (!mDefersToCreateAudioTrack)
1382 ALOGI("probe packet counter: %d when create audio track ok", mProbePkts);
1383 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1384 ALOGI("probe packet counter to max: %d, create audio track: %d",
1385 mProbePkts, !mDefersToCreateAudioTrack);
1389 if (pkt->stream_index == mAudioStreamIdx) {
1390 packet_queue_put(&mAudioQ, pkt);
1391 } else if (pkt->stream_index == mVideoStreamIdx) {
1392 packet_queue_put(&mVideoQ, pkt);
1394 av_free_packet(pkt);
1397 /* wait until the end */
1398 while (!mAbortRequest) {
1404 ALOGI("reader thread goto end...");
1406 /* close each stream */
1407 if (mAudioStreamIdx >= 0)
1408 stream_component_close(mAudioStreamIdx);
1409 if (mVideoStreamIdx >= 0)
1410 stream_component_close(mVideoStreamIdx);
1412 avformat_close_input(&mFormatCtx);
1415 ALOGV("FFmpegExtractor exit thread(readerEntry)");
1418 ////////////////////////////////////////////////////////////////////////////////
1420 FFmpegExtractor::Track::Track(
1421 FFmpegExtractor *extractor, sp<MetaData> meta, bool isAVC,
1422 AVStream *stream, PacketQueue *queue)
1423 : mExtractor(extractor),
1430 /* H.264 Video Types */
1432 mNal2AnnexB = false;
1438 CHECK(meta->findData(kKeyAVCC, &type, &data, &size));
1440 const uint8_t *ptr = (const uint8_t *)data;
1443 CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
1445 // The number of bytes used to encode the length of a NAL unit.
1446 mNALLengthSize = 1 + (ptr[4] & 3);
1448 ALOGV("the stream is AVC, the length of a NAL unit: %d", mNALLengthSize);
1454 mMediaType = mStream->codec->codec_type;
1455 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1458 FFmpegExtractor::Track::~Track() {
1459 ALOGV("FFmpegExtractor::Track::~Track %s",
1460 av_get_media_type_string(mMediaType));
1465 status_t FFmpegExtractor::Track::start(MetaData *params) {
1466 ALOGV("FFmpegExtractor::Track::start %s",
1467 av_get_media_type_string(mMediaType));
1468 Mutex::Autolock autoLock(mLock);
1469 //mExtractor->startReaderThread();
1473 status_t FFmpegExtractor::Track::stop() {
1474 ALOGV("FFmpegExtractor::Track::stop %s",
1475 av_get_media_type_string(mMediaType));
1476 Mutex::Autolock autoLock(mLock);
1477 //mExtractor->stopReaderThread();
1481 sp<MetaData> FFmpegExtractor::Track::getFormat() {
1482 Mutex::Autolock autoLock(mLock);
1487 status_t FFmpegExtractor::Track::read(
1488 MediaBuffer **buffer, const ReadOptions *options) {
1491 Mutex::Autolock autoLock(mLock);
1494 bool seeking = false;
1495 bool waitKeyPkt = false;
1496 ReadOptions::SeekMode mode;
1497 int64_t pktTS = AV_NOPTS_VALUE;
1498 int64_t seekTimeUs = AV_NOPTS_VALUE;
1501 status_t status = OK;
1503 if (options && options->getSeekTo(&seekTimeUs, &mode)) {
1504 ALOGV("~~~%s seekTimeUs: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1505 /* add the stream start time */
1506 if (mStream->start_time != AV_NOPTS_VALUE)
1507 seekTimeUs += mStream->start_time * av_q2d(mStream->time_base) * 1000000;
1508 ALOGV("~~~%s seekTimeUs[+startTime]: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1510 if (mExtractor->stream_seek(seekTimeUs, mMediaType) == SEEK)
1515 if (mExtractor->packet_queue_get(mQueue, &pkt, 1) < 0) {
1516 mExtractor->reachedEOS(mMediaType);
1517 return ERROR_END_OF_STREAM;
1521 if (pkt.data != flush_pkt.data) {
1522 av_free_packet(&pkt);
1526 #if WAIT_KEY_PACKET_AFTER_SEEK
1532 if (pkt.data == flush_pkt.data) {
1533 ALOGV("read %s flush pkt", av_get_media_type_string(mMediaType));
1534 av_free_packet(&pkt);
1535 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1537 } else if (pkt.data == NULL && pkt.size == 0) {
1538 ALOGD("read %s eos pkt", av_get_media_type_string(mMediaType));
1539 av_free_packet(&pkt);
1540 mExtractor->reachedEOS(mMediaType);
1541 return ERROR_END_OF_STREAM;
1544 key = pkt.flags & AV_PKT_FLAG_KEY ? 1 : 0;
1547 if (pkt.pts == AV_NOPTS_VALUE)
1552 ALOGV("drop the no key packet");
1553 av_free_packet(&pkt);
1556 ALOGV("~~~~~~ got the key packet");
1561 if (mFirstKeyPktTimestamp == AV_NOPTS_VALUE) {
1562 // update the first key timestamp
1563 mFirstKeyPktTimestamp = pktTS;
1566 if (pktTS < mFirstKeyPktTimestamp) {
1567 ALOGV("drop the packet with the backward timestamp, maybe they are B-frames after I-frame ^_^");
1568 av_free_packet(&pkt);
1572 MediaBuffer *mediaBuffer = new MediaBuffer(pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
1573 mediaBuffer->meta_data()->clear();
1574 mediaBuffer->set_range(0, pkt.size);
1575 #if DISABLE_NAL_TO_ANNEXB
1576 mNal2AnnexB = false;
1578 if (mIsAVC && mNal2AnnexB) {
1579 /* Convert H.264 NAL format to annex b */
1580 if (mNALLengthSize >= 3 && mNALLengthSize <= 4 )
1582 uint8_t *dst = (uint8_t *)mediaBuffer->data();
1584 /* This only works for NAL sizes 3-4 */
1585 size_t len = pkt.size, i;
1586 uint8_t *ptr = pkt.data;
1587 while (len >= mNALLengthSize) {
1588 uint32_t nal_len = 0;
1589 for( i = 0; i < mNALLengthSize; i++ ) {
1590 nal_len = (nal_len << 8) | ptr[i];
1593 dst[mNALLengthSize - 1] = 1;
1594 if (nal_len > INT_MAX || nal_len > (unsigned int)len) {
1595 status = ERROR_MALFORMED;
1598 dst += mNALLengthSize;
1599 ptr += mNALLengthSize;
1600 len -= mNALLengthSize;
1602 memcpy(dst, ptr, nal_len);
1609 status = ERROR_MALFORMED;
1613 ALOGV("status != OK");
1614 mediaBuffer->release();
1616 av_free_packet(&pkt);
1617 return ERROR_MALFORMED;
1620 memcpy(mediaBuffer->data(), pkt.data, pkt.size);
1623 int64_t start_time = mStream->start_time != AV_NOPTS_VALUE ? mStream->start_time : 0;
1624 timeUs = (int64_t)((pktTS - start_time) * av_q2d(mStream->time_base) * 1000000);
1627 ALOGV("read %s pkt, size: %d, key: %d, pts: %lld, dts: %lld, timeUs[-startTime]: %llu us (%.2f secs)",
1628 av_get_media_type_string(mMediaType), pkt.size, key, pkt.pts, pkt.dts, timeUs, timeUs/1E6);
1631 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
1632 mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, key);
1634 *buffer = mediaBuffer;
1636 av_free_packet(&pkt);
1641 ////////////////////////////////////////////////////////////////////////////////
1645 const char *container;
1648 static formatmap FILE_FORMATS[] = {
1649 {"mpeg", MEDIA_MIMETYPE_CONTAINER_MPEG2PS },
1650 {"mpegts", MEDIA_MIMETYPE_CONTAINER_TS },
1651 {"mov,mp4,m4a,3gp,3g2,mj2", MEDIA_MIMETYPE_CONTAINER_MPEG4 },
1652 {"matroska,webm", MEDIA_MIMETYPE_CONTAINER_MATROSKA },
1653 {"asf", MEDIA_MIMETYPE_CONTAINER_ASF },
1654 {"rm", MEDIA_MIMETYPE_CONTAINER_RM },
1655 {"flv", MEDIA_MIMETYPE_CONTAINER_FLV },
1656 {"avi", MEDIA_MIMETYPE_CONTAINER_AVI },
1657 {"ape", MEDIA_MIMETYPE_CONTAINER_APE },
1658 {"dts", MEDIA_MIMETYPE_CONTAINER_DTS },
1659 {"flac", MEDIA_MIMETYPE_CONTAINER_FLAC },
1660 {"ac3", MEDIA_MIMETYPE_AUDIO_AC3 },
1661 {"wav", MEDIA_MIMETYPE_CONTAINER_WAV },
1664 static void adjustMPEG4Confidence(AVFormatContext *ic, float *confidence)
1666 AVDictionary *tags = NULL;
1667 AVDictionaryEntry *tag = NULL;
1669 tags = ic->metadata;
1671 //NOTE: You can use command to show these tags,
1672 //e.g. "ffprobe -show_format 2012.mov"
1674 tag = av_dict_get(tags, "major_brand", NULL, 0);
1679 ALOGV("major_brand tag is:%s", tag->value);
1681 //when MEDIA_MIMETYPE_CONTAINER_MPEG4
1682 //WTF, MPEG4Extractor.cpp can not extractor mov format
1683 //NOTE: isCompatibleBrand(MPEG4Extractor.cpp)
1684 // Won't promise that the following file types can be played.
1685 // Just give these file types a chance.
1686 // FOURCC('q', 't', ' ', ' '), // Apple's QuickTime
1688 if (!strcmp(tag->value, "qt ")) {
1689 ALOGI("format is mov, confidence should be larger than mpeg4");
1690 //the MEDIA_MIMETYPE_CONTAINER_MPEG4 of confidence is 0.4f
1691 *confidence = 0.41f;
1695 static void adjustVideoCodecConfidence(AVFormatContext *ic,
1696 enum AVCodecID codec_id, float *confidence)
1701 static void adjustAudioCodecConfidence(AVFormatContext *ic,
1702 enum AVCodecID codec_id, float *confidence)
1706 //TODO. if the other stream(e.g. mp3) is supported by stagefright
1707 ALOGI("ffmpeg can demux ac3 only");
1708 *confidence = 0.88f;
1714 static void adjustCodecConfidence(AVFormatContext *ic, float *confidence)
1716 unsigned int idx = 0;
1717 AVCodecContext *avctx = NULL;
1718 AVMediaType codec_type = AVMEDIA_TYPE_UNKNOWN;
1719 enum AVCodecID codec_id = AV_CODEC_ID_NONE;
1721 for (idx = 0; idx < ic->nb_streams; idx++)
1723 avctx = ic->streams[idx]->codec;
1724 codec_type = avctx->codec_type;
1725 codec_id = avctx->codec_id;
1727 if (codec_type == AVMEDIA_TYPE_VIDEO) {
1728 adjustVideoCodecConfidence(ic, codec_id, confidence);
1729 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
1730 adjustAudioCodecConfidence(ic, codec_id, confidence);
1735 static void adjustConfidenceIfNeeded(const char *mime,
1736 AVFormatContext *ic, float *confidence)
1739 if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4)) {
1740 adjustMPEG4Confidence(ic, confidence);
1746 adjustCodecConfidence(ic, confidence);
1749 static const char *SniffFFMPEGCommon(const char *url, float *confidence)
1753 const char *container = NULL;
1754 AVFormatContext *ic = NULL;
1756 status_t status = initFFmpeg();
1758 ALOGE("could not init ffmpeg");
1762 ic = avformat_alloc_context();
1765 ALOGE("oom for alloc avformat context");
1769 err = avformat_open_input(&ic, url, NULL, NULL);
1771 ALOGE("avformat_open_input faild, url: %s err: %d", url, err);
1775 av_dump_format(ic, 0, url, 0);
1777 ALOGI("FFmpegExtrator, url: %s, format_name: %s, format_long_name: %s",
1778 url, ic->iformat->name, ic->iformat->long_name);
1780 ALOGI("list the formats suppoted by ffmpeg: ");
1781 ALOGI("========================================");
1782 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1783 ALOGV("format_names[%02d]: %s", i, FILE_FORMATS[i].format);
1785 ALOGI("========================================");
1787 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1788 int len = strlen(FILE_FORMATS[i].format);
1789 if (!av_strncasecmp(ic->iformat->name, FILE_FORMATS[i].format, len)) {
1790 container = FILE_FORMATS[i].container;
1796 adjustConfidenceIfNeeded(container, ic, confidence);
1801 avformat_close_input(&ic);
1811 static const char *LegacySniffFFMPEG(const sp<DataSource> &source, float *confidence)
1813 String8 uri = source->getUri();
1818 ALOGI("source url:%s", uri.string());
1820 return SniffFFMPEGCommon(uri.string(), confidence);
1823 static const char *BetterSniffFFMPEG(const sp<DataSource> &source, float *confidence)
1825 char url[128] = {0};
1827 ALOGI("android-source:%p", source.get());
1829 // pass the addr of smart pointer("source")
1830 snprintf(url, sizeof(url), "android-source:%p", source.get());
1832 return SniffFFMPEGCommon(url, confidence);
1836 const sp<DataSource> &source, String8 *mimeType, float *confidence,
1837 sp<AMessage> *meta) {
1838 ALOGV("SniffFFMPEG");
1840 *confidence = 0.08f; // be the last resort, by default
1842 const char *container = BetterSniffFFMPEG(source, confidence);
1844 ALOGW("sniff through BetterSniffFFMPEG failed, try LegacySniffFFMPEG");
1845 container = LegacySniffFFMPEG(source, confidence);
1847 ALOGI("sniff through LegacySniffFFMPEG success");
1850 ALOGI("sniff through BetterSniffFFMPEG success");
1853 if (container == NULL) {
1854 ALOGD("SniffFFMPEG failed to sniff this source");
1858 ALOGD("ffmpeg detected media content as '%s' with confidence %.2f",
1859 container, *confidence);
1861 /* use MPEG4Extractor(not extended extractor) for HTTP source only */
1862 if (!strcasecmp(container, MEDIA_MIMETYPE_CONTAINER_MPEG4)
1863 && (source->flags() & DataSource::kIsCachingDataSource)) {
1864 ALOGI("support container: %s, but it is caching data source, "
1865 "Don't use ffmpegextractor", container);
1869 mimeType->setTo(container);
1871 *meta = new AMessage;
1872 (*meta)->setString("extended-extractor", "extended-extractor");
1873 (*meta)->setString("extended-extractor-subtype", "ffmpegextractor");
1876 char value[PROPERTY_VALUE_MAX];
1877 property_get("sys.media.parser.ffmpeg", value, "0");
1879 ALOGI("[debug] parser use ffmpeg");
1880 *confidence = 0.88f;
1883 if (*confidence > 0.08f) {
1884 (*meta)->setString("extended-extractor-use", "ffmpegextractor");
1890 MediaExtractor *CreateFFmpegExtractor(const sp<DataSource> &source, const char *mime, const sp<AMessage> &meta) {
1891 MediaExtractor *ret = NULL;
1893 if (meta.get() && meta->findString("extended-extractor", ¬use) && (
1894 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4) ||
1895 !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_MPEG) ||
1896 !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AC3) ||
1897 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MOV) ||
1898 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MATROSKA) ||
1899 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_TS) ||
1900 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2PS) ||
1901 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_AVI) ||
1902 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_ASF) ||
1903 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WEBM) ||
1904 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMV) ||
1905 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPG) ||
1906 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLV) ||
1907 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DIVX) ||
1908 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RM) ||
1909 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WAV) ||
1910 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLAC) ||
1911 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_APE) ||
1912 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DTS) ||
1913 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MP2) ||
1914 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RA) ||
1915 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMA))) {
1916 ret = new FFmpegExtractor(source);
1919 ALOGD("%ssupported mime: %s", (ret ? "" : "un"), mime);
1923 } // namespace android
1925 extern "C" void getExtractorPlugin(android::MediaExtractor::Plugin *plugin)
1927 plugin->sniff = android::SniffFFMPEG;
1928 plugin->create = android::CreateFFmpegExtractor;