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 <utils/String8.h>
39 #include <utils/misc.h>
41 #include "include/avc_utils.h"
42 #include "utils/common_utils.h"
43 #include "utils/ffmpeg_utils.h"
44 #include "utils/ffmpeg_cmdutils.h"
45 #include "FFmpegExtractor.h"
47 #define DEBUG_READ_ENTRY 0
48 #define DEBUG_DISABLE_VIDEO 0
49 #define DEBUG_DISABLE_AUDIO 0
50 #define WAIT_KEY_PACKET_AFTER_SEEK 1
51 #define DISABLE_NAL_TO_ANNEXB 0
53 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
54 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
56 #define EXTRACTOR_MAX_PROBE_PACKETS 200
58 #define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE)
65 static AVPacket flush_pkt;
69 struct FFmpegExtractor::Track : public MediaSource {
70 Track(const sp<FFmpegExtractor> &extractor, sp<MetaData> meta, bool isAVC,
71 AVStream *stream, PacketQueue *queue);
73 virtual status_t start(MetaData *params);
74 virtual status_t stop();
75 virtual sp<MetaData> getFormat();
77 virtual status_t read(
78 MediaBuffer **buffer, const ReadOptions *options);
84 friend struct FFmpegExtractor;
86 sp<FFmpegExtractor> mExtractor;
89 enum AVMediaType mMediaType;
94 size_t mNALLengthSize;
100 int64_t mFirstKeyPktTimestamp;
102 DISALLOW_EVIL_CONSTRUCTORS(Track);
105 ////////////////////////////////////////////////////////////////////////////////
107 FFmpegExtractor::FFmpegExtractor(const sp<DataSource> &source)
108 : mDataSource(source),
110 mReaderThreadStarted(false) {
111 ALOGV("FFmpegExtractor::FFmpegExtractor");
113 buildFileName(source);
115 int err = initStreams();
117 ALOGE("failed to init ffmpeg");
121 // start reader here, as we want to extract extradata from bitstream if no extradata
124 while(mProbePkts <= EXTRACTOR_MAX_PROBE_PACKETS && !mEOF &&
125 (mFormatCtx->pb ? !mFormatCtx->pb->error : 1) &&
126 (mDefersToCreateVideoTrack || mDefersToCreateAudioTrack)) {
127 // FIXME, i am so lazy! Should use pthread_cond_wait to wait conditions
131 ALOGV("mProbePkts: %d, mEOF: %d, pb->error(if has): %d, mDefersToCreateVideoTrack: %d, mDefersToCreateAudioTrack: %d",
132 mProbePkts, mEOF, mFormatCtx->pb ? mFormatCtx->pb->error : 0, mDefersToCreateVideoTrack, mDefersToCreateAudioTrack);
137 FFmpegExtractor::~FFmpegExtractor() {
138 ALOGV("FFmpegExtractor::~FFmpegExtractor");
140 // stop reader here if no track!
146 size_t FFmpegExtractor::countTracks() {
147 return mInitCheck == OK ? mTracks.size() : 0;
150 sp<MediaSource> FFmpegExtractor::getTrack(size_t index) {
151 ALOGV("FFmpegExtractor::getTrack[%d]", index);
153 if (mInitCheck != OK) {
157 if (index >= mTracks.size()) {
161 return mTracks.valueAt(index);
164 sp<MetaData> FFmpegExtractor::getTrackMetaData(size_t index, uint32_t flags) {
165 ALOGV("FFmpegExtractor::getTrackMetaData[%d]", index);
167 if (mInitCheck != OK) {
171 if (index >= mTracks.size()) {
175 return mTracks.valueAt(index)->getFormat();
178 sp<MetaData> FFmpegExtractor::getMetaData() {
179 ALOGV("FFmpegExtractor::getMetaData");
181 if (mInitCheck != OK) {
185 sp<MetaData> meta = new MetaData;
187 meta->setCString(kKeyMIMEType, "video/ffmpeg");
192 uint32_t FFmpegExtractor::flags() const {
193 ALOGV("FFmpegExtractor::flags");
195 if (mInitCheck != OK) {
199 uint32_t flags = CAN_PAUSE;
201 if (mFormatCtx->duration != AV_NOPTS_VALUE) {
202 flags |= CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK;
208 void FFmpegExtractor::packet_queue_init(PacketQueue *q)
210 memset(q, 0, sizeof(PacketQueue));
211 pthread_mutex_init(&q->mutex, NULL);
212 pthread_cond_init(&q->cond, NULL);
213 packet_queue_put(q, &flush_pkt);
216 void FFmpegExtractor::packet_queue_flush(PacketQueue *q)
218 AVPacketList *pkt, *pkt1;
220 pthread_mutex_lock(&q->mutex);
221 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
223 av_free_packet(&pkt->pkt);
230 pthread_mutex_unlock(&q->mutex);
233 void FFmpegExtractor::packet_queue_end(PacketQueue *q)
235 packet_queue_flush(q);
238 void FFmpegExtractor::packet_queue_abort(PacketQueue *q)
240 pthread_mutex_lock(&q->mutex);
242 q->abort_request = 1;
244 pthread_cond_signal(&q->cond);
246 pthread_mutex_unlock(&q->mutex);
249 int FFmpegExtractor::packet_queue_put(PacketQueue *q, AVPacket *pkt)
253 /* duplicate the packet */
254 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
257 pkt1 = (AVPacketList *)av_malloc(sizeof(AVPacketList));
263 pthread_mutex_lock(&q->mutex);
269 q->last_pkt->next = pkt1;
272 //q->size += pkt1->pkt.size + sizeof(*pkt1);
273 q->size += pkt1->pkt.size;
274 pthread_cond_signal(&q->cond);
276 pthread_mutex_unlock(&q->mutex);
280 /* packet queue handling */
281 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
282 int FFmpegExtractor::packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
287 pthread_mutex_lock(&q->mutex);
290 if (q->abort_request) {
297 q->first_pkt = pkt1->next;
301 //q->size -= pkt1->pkt.size + sizeof(*pkt1);
302 q->size -= pkt1->pkt.size;
311 pthread_cond_wait(&q->cond, &q->mutex);
314 pthread_mutex_unlock(&q->mutex);
318 static void EncodeSize14(uint8_t **_ptr, size_t size) {
319 CHECK_LE(size, 0x3fff);
321 uint8_t *ptr = *_ptr;
323 *ptr++ = 0x80 | (size >> 7);
324 *ptr++ = size & 0x7f;
329 static sp<ABuffer> MakeMPEGVideoESDS(const sp<ABuffer> &csd) {
330 sp<ABuffer> esds = new ABuffer(csd->size() + 25);
332 uint8_t *ptr = esds->data();
334 EncodeSize14(&ptr, 22 + csd->size());
336 *ptr++ = 0x00; // ES_ID
339 *ptr++ = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag
342 EncodeSize14(&ptr, 16 + csd->size());
344 *ptr++ = 0x40; // Audio ISO/IEC 14496-3
346 for (size_t i = 0; i < 12; ++i) {
351 EncodeSize14(&ptr, csd->size());
353 memcpy(ptr, csd->data(), csd->size());
358 // Returns the sample rate based on the sampling frequency index
359 static uint32_t get_sample_rate(const uint8_t sf_index)
361 static const uint32_t sample_rates[] =
363 96000, 88200, 64000, 48000, 44100, 32000,
364 24000, 22050, 16000, 12000, 11025, 8000
367 if (sf_index < sizeof(sample_rates) / sizeof(sample_rates[0])) {
368 return sample_rates[sf_index];
374 int FFmpegExtractor::check_extradata(AVCodecContext *avctx)
376 const char *name = NULL;
377 bool *defersToCreateTrack = NULL;
378 AVBitStreamFilterContext **bsfc = NULL;
381 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
383 defersToCreateTrack = &mDefersToCreateVideoTrack;
384 } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO){
386 defersToCreateTrack = &mDefersToCreateAudioTrack;
390 if (avctx->codec_id == CODEC_ID_MP3 ||
391 avctx->codec_id == CODEC_ID_MP1 ||
392 avctx->codec_id == CODEC_ID_MP2 ||
393 avctx->codec_id == CODEC_ID_AC3 ||
394 avctx->codec_id == CODEC_ID_DTS ||
395 avctx->codec_id == CODEC_ID_H263 ||
396 avctx->codec_id == CODEC_ID_H263P ||
397 avctx->codec_id == CODEC_ID_H263I ||
398 avctx->codec_id == CODEC_ID_WMV1)
401 // is extradata compatible with android?
402 if (avctx->codec_id != CODEC_ID_AAC) {
403 int is_compatible = is_extradata_compatible_with_android(avctx);
404 if (!is_compatible) {
405 ALOGI("%s extradata is not compatible with android, should to extract it from bitstream",
406 av_get_media_type_string(avctx->codec_type));
407 *defersToCreateTrack = true;
408 *bsfc = NULL; // H264 don't need bsfc, only AAC?
414 if (avctx->codec_id == CODEC_ID_AAC) {
415 name = "aac_adtstoasc";
418 if (avctx->extradata_size <= 0) {
419 ALOGI("No %s extradata found, should to extract it from bitstream",
420 av_get_media_type_string(avctx->codec_type));
421 *defersToCreateTrack = true;
422 //CHECK(name != NULL);
423 if (!*bsfc && name) {
424 *bsfc = av_bitstream_filter_init(name);
426 ALOGE("Cannot open the %s BSF!", name);
427 *defersToCreateTrack = false;
430 ALOGV("open the %s bsf", name);
440 void FFmpegExtractor::printTime(int64_t time)
442 int hours, mins, secs, us;
444 if (time == AV_NOPTS_VALUE)
447 secs = time / AV_TIME_BASE;
448 us = time % AV_TIME_BASE;
453 ALOGI("the time is %02d:%02d:%02d.%02d",
454 hours, mins, secs, (100 * us) / AV_TIME_BASE);
457 int FFmpegExtractor::stream_component_open(int stream_index)
459 AVCodecContext *avctx = NULL;
460 sp<MetaData> meta = NULL;
462 bool supported = false;
464 const void *data = NULL;
468 ALOGI("stream_index: %d", stream_index);
469 if (stream_index < 0 || stream_index >= (int)mFormatCtx->nb_streams)
471 avctx = mFormatCtx->streams[stream_index]->codec;
473 switch(avctx->codec_id) {
484 case CODEC_ID_MPEG2VIDEO:
491 case CODEC_ID_WMAPRO:
492 case CODEC_ID_WMALOSSLESS:
506 ALOGE("unsupport the codec, id: 0x%0x", avctx->codec_id);
509 ALOGV("support the codec");
512 ssize_t index = mTracks.indexOfKey(stream_index);
515 ALOGE("this track already exists");
519 mFormatCtx->streams[stream_index]->discard = AVDISCARD_DEFAULT;
522 av_get_codec_tag_string(tagbuf, sizeof(tagbuf), avctx->codec_tag);
523 ALOGV("Tag %s/0x%08x with codec id '%d'\n", tagbuf, avctx->codec_tag, avctx->codec_id);
525 switch (avctx->codec_type) {
526 case AVMEDIA_TYPE_VIDEO:
527 if (mVideoStreamIdx == -1)
528 mVideoStreamIdx = stream_index;
529 if (mVideoStream == NULL)
530 mVideoStream = mFormatCtx->streams[stream_index];
531 if (!mVideoQInited) {
532 packet_queue_init(&mVideoQ);
533 mVideoQInited = true;
536 ret = check_extradata(avctx);
539 // disable the stream
540 mVideoStreamIdx = -1;
542 packet_queue_end(&mVideoQ);
543 mVideoQInited = false;
544 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
549 if (avctx->extradata) {
550 ALOGV("video stream extradata:");
551 hexdump(avctx->extradata, avctx->extradata_size);
553 ALOGV("video stream no extradata, but we can ignore it.");
558 switch(avctx->codec_id) {
562 * http://msdn.microsoft.com/en-us/library/dd757808(v=vs.85).aspx
564 //if (avctx->codec_tag && avctx->codec_tag == AV_RL32("avc1")) {
565 if (avctx->extradata[0] == 1 /* configurationVersion */) {
566 // H.264 bitstream without start codes.
570 if (avctx->width == 0 || avctx->height == 0) {
571 int32_t width, height;
572 sp<ABuffer> seqParamSet = new ABuffer(avctx->extradata_size - 8);
573 memcpy(seqParamSet->data(), avctx->extradata + 8, avctx->extradata_size - 8);
574 FindAVCDimensions(seqParamSet, &width, &height);
575 avctx->width = width;
576 avctx->height = height;
579 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
580 meta->setData(kKeyAVCC, kTypeAVCC, avctx->extradata, avctx->extradata_size);
582 // H.264 bitstream with start codes.
586 /* set NULL to release meta as we will new a meta in MakeAVCCodecSpecificData() fxn */
590 sp<ABuffer> buffer = new ABuffer(avctx->extradata_size);
591 memcpy(buffer->data(), avctx->extradata, avctx->extradata_size);
592 meta = MakeAVCCodecSpecificData(buffer);
597 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
599 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
600 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
601 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
602 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
609 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
611 case CODEC_ID_MPEG2VIDEO:
613 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
615 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
616 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
617 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
618 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
623 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VC1);
624 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
628 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
629 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_7);
633 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
634 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
635 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_8);
639 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
640 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
641 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_9);
645 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
646 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
649 CHECK(!"Should not be here. Unsupported codec.");
653 ALOGI("width: %d, height: %d, bit_rate: %d",
654 avctx->width, avctx->height, avctx->bit_rate);
656 meta->setInt32(kKeyWidth, avctx->width);
657 meta->setInt32(kKeyHeight, avctx->height);
658 if (avctx->bit_rate > 0)
659 meta->setInt32(kKeyBitRate, avctx->bit_rate);
660 if (mVideoStream->duration != AV_NOPTS_VALUE) {
661 int64_t duration = mVideoStream->duration * av_q2d(mVideoStream->time_base) * 1000000;
663 ALOGV("video startTime: %lld", mVideoStream->start_time);
664 meta->setInt64(kKeyDuration, duration);
666 // default when no stream duration
667 meta->setInt64(kKeyDuration, mFormatCtx->duration);
670 ALOGV("create a video track");
672 stream_index, new Track(this, meta, isAVC, mVideoStream, &mVideoQ));
674 mDefersToCreateVideoTrack = false;
677 case AVMEDIA_TYPE_AUDIO:
678 if (mAudioStreamIdx == -1)
679 mAudioStreamIdx = stream_index;
680 if (mAudioStream == NULL)
681 mAudioStream = mFormatCtx->streams[stream_index];
682 if (!mAudioQInited) {
683 packet_queue_init(&mAudioQ);
684 mAudioQInited = true;
687 ret = check_extradata(avctx);
690 // disable the stream
691 mAudioStreamIdx = -1;
693 packet_queue_end(&mAudioQ);
694 mAudioQInited = false;
695 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
700 if (avctx->extradata) {
701 ALOGV("audio stream extradata:");
702 hexdump(avctx->extradata, avctx->extradata_size);
704 ALOGV("audio stream no extradata, but we can ignore it.");
707 switch(avctx->codec_id) {
711 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
716 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
721 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
726 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
731 const uint8_t *header;
732 uint8_t profile, sf_index, channel;
734 header = avctx->extradata;
735 CHECK(header != NULL);
737 // AudioSpecificInfo follows
738 // oooo offf fccc c000
739 // o - audioObjectType
740 // f - samplingFreqIndex
742 profile = ((header[0] & 0xf8) >> 3) - 1;
743 sf_index = (header[0] & 0x07) << 1 | (header[1] & 0x80) >> 7;
744 sr = get_sample_rate(sf_index);
746 ALOGE("unsupport the sample rate");
749 channel = (header[1] >> 3) & 0xf;
750 ALOGV("profile: %d, sf_index: %d, channel: %d", profile, sf_index, channel);
752 meta = MakeAACCodecSpecificData(profile, sf_index, channel);
753 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
755 case CODEC_ID_WMAV1: // TODO, version?
758 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
759 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
764 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
765 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
766 meta->setInt32(kKeyWMAVersion, kTypeWMA);
768 case CODEC_ID_WMAPRO:
771 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
772 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
773 meta->setInt32(kKeyWMAVersion, kTypeWMAPro);
775 case CODEC_ID_WMALOSSLESS:
776 ALOGV("WMALOSSLESS");
778 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
779 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
780 meta->setInt32(kKeyWMAVersion, kTypeWMALossLess);
782 case CODEC_ID_COOK: // audio codec in RMVB
785 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RA);
786 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
791 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_APE);
792 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
797 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_DTS);
798 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
803 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_FLAC);
804 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
807 CHECK(!"Should not be here. Unsupported codec.");
811 ALOGI("bit_rate: %d, sample_rate: %d, channels: %d, bits_per_coded_sample: %d",
812 avctx->bit_rate, avctx->sample_rate, avctx->channels, avctx->bits_per_coded_sample);
814 meta->setInt32(kKeySampleRate, avctx->sample_rate);
815 meta->setInt32(kKeyChannelCount, avctx->channels);
816 meta->setInt32(kKeyBitspersample, avctx->bits_per_coded_sample);
817 meta->setInt32(kKeyBitRate, avctx->bit_rate);
818 meta->setInt32(kKeyBlockAlign, avctx->block_align);
819 if (mAudioStream->duration != AV_NOPTS_VALUE) {
820 int64_t duration = mAudioStream->duration * av_q2d(mAudioStream->time_base) * 1000000;
822 ALOGV("audio startTime: %lld", mAudioStream->start_time);
823 meta->setInt64(kKeyDuration, duration);
825 // default when no stream duration
826 meta->setInt64(kKeyDuration, mFormatCtx->duration);
829 ALOGV("create a audio track");
831 stream_index, new Track(this, meta, false, mAudioStream, &mAudioQ));
833 mDefersToCreateAudioTrack = false;
836 case AVMEDIA_TYPE_SUBTITLE:
838 CHECK(!"Should not be here. Unsupported media type.");
841 CHECK(!"Should not be here. Unsupported media type.");
847 void FFmpegExtractor::stream_component_close(int stream_index)
849 AVCodecContext *avctx;
851 if (stream_index < 0 || stream_index >= (int)mFormatCtx->nb_streams)
853 avctx = mFormatCtx->streams[stream_index]->codec;
855 switch (avctx->codec_type) {
856 case AVMEDIA_TYPE_VIDEO:
857 ALOGV("packet_queue_abort videoq");
858 packet_queue_abort(&mVideoQ);
859 /* wait until the end */
860 while (!mAbortRequest && !mVideoEOSReceived) {
861 ALOGV("wait for video received");
864 ALOGV("packet_queue_end videoq");
865 packet_queue_end(&mVideoQ);
867 case AVMEDIA_TYPE_AUDIO:
868 ALOGV("packet_queue_abort audioq");
869 packet_queue_abort(&mAudioQ);
870 while (!mAbortRequest && !mAudioEOSReceived) {
871 ALOGV("wait for audio received");
874 ALOGV("packet_queue_end audioq");
875 packet_queue_end(&mAudioQ);
877 case AVMEDIA_TYPE_SUBTITLE:
883 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
884 switch (avctx->codec_type) {
885 case AVMEDIA_TYPE_VIDEO:
887 mVideoStreamIdx = -1;
889 av_bitstream_filter_close(mVideoBsfc);
893 case AVMEDIA_TYPE_AUDIO:
895 mAudioStreamIdx = -1;
897 av_bitstream_filter_close(mAudioBsfc);
901 case AVMEDIA_TYPE_SUBTITLE:
908 void FFmpegExtractor::reachedEOS(enum AVMediaType media_type)
910 Mutex::Autolock autoLock(mLock);
912 if (media_type == AVMEDIA_TYPE_VIDEO) {
913 mVideoEOSReceived = true;
914 } else if (media_type == AVMEDIA_TYPE_AUDIO) {
915 mAudioEOSReceived = true;
919 /* seek in the stream */
920 int FFmpegExtractor::stream_seek(int64_t pos, enum AVMediaType media_type)
922 Mutex::Autolock autoLock(mLock);
924 if (mVideoStreamIdx >= 0 &&
925 mAudioStreamIdx >= 0 &&
926 media_type == AVMEDIA_TYPE_AUDIO &&
927 !mVideoEOSReceived) {
932 if (mAudioStreamIdx >= 0)
933 packet_queue_flush(&mAudioQ);
934 if (mVideoStreamIdx >= 0)
935 packet_queue_flush(&mVideoQ);
938 mSeekFlags &= ~AVSEEK_FLAG_BYTE;
945 int FFmpegExtractor::decode_interrupt_cb(void *ctx)
947 FFmpegExtractor *extrator = static_cast<FFmpegExtractor *>(ctx);
948 return extrator->mAbortRequest;
951 void FFmpegExtractor::print_error_ex(const char *filename, int err)
954 const char *errbuf_ptr = errbuf;
956 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
957 errbuf_ptr = strerror(AVUNERROR(err));
958 ALOGI("%s: %s\n", filename, errbuf_ptr);
961 void FFmpegExtractor::buildFileName(const sp<DataSource> &source)
964 ALOGI("android-source:%p", &source);
965 // pass the addr of smart pointer("source")
966 snprintf(mFilename, sizeof(mFilename), "android-source:%p", &source);
967 ALOGI("build mFilename: %s", mFilename);
969 const char *url = mDataSource->getNamURI();
971 ALOGI("url is error!");
975 if (!strcmp(url, "-")) {
976 av_strlcpy(mFilename, "pipe:", strlen("pipe:") + 1);
978 av_strlcpy(mFilename, url, strlen(url) + 1);
980 ALOGI("build url: %s, mFilename: %s", url, mFilename);
984 void FFmpegExtractor::setFFmpegDefaultOpts()
987 #if DEBUG_DISABLE_VIDEO
992 #if DEBUG_DISABLE_AUDIO
998 mSeekByBytes = 0; /* seek by bytes 0=off 1=on -1=auto" */
999 mDuration = AV_NOPTS_VALUE;
1000 mSeekPos = AV_NOPTS_VALUE;
1004 mVideoStreamIdx = -1;
1005 mAudioStreamIdx = -1;
1006 mVideoStream = NULL;
1007 mAudioStream = NULL;
1008 mVideoQInited = false;
1009 mAudioQInited = false;
1010 mDefersToCreateVideoTrack = false;
1011 mDefersToCreateAudioTrack = false;
1024 int FFmpegExtractor::initStreams()
1028 status_t status = UNKNOWN_ERROR;
1030 int ret = 0, audio_ret = 0, video_ret = 0;
1031 int pkt_in_play_range = 0;
1032 AVDictionaryEntry *t = NULL;
1033 AVDictionary **opts = NULL;
1034 int orig_nb_streams = 0;
1035 int st_index[AVMEDIA_TYPE_NB] = {0};
1036 int wanted_stream[AVMEDIA_TYPE_NB] = {0};
1037 st_index[AVMEDIA_TYPE_AUDIO] = -1;
1038 st_index[AVMEDIA_TYPE_VIDEO] = -1;
1039 wanted_stream[AVMEDIA_TYPE_AUDIO] = -1;
1040 wanted_stream[AVMEDIA_TYPE_VIDEO] = -1;
1042 setFFmpegDefaultOpts();
1044 status = initFFmpeg();
1050 av_init_packet(&flush_pkt);
1051 flush_pkt.data = (uint8_t *)"FLUSH";
1054 mFormatCtx = avformat_alloc_context();
1055 mFormatCtx->interrupt_callback.callback = decode_interrupt_cb;
1056 mFormatCtx->interrupt_callback.opaque = this;
1057 ALOGV("mFilename: %s", mFilename);
1058 err = avformat_open_input(&mFormatCtx, mFilename, NULL, &format_opts);
1060 print_error_ex(mFilename, err);
1064 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1065 ALOGE("Option %s not found.\n", t->key);
1066 //ret = AVERROR_OPTION_NOT_FOUND;
1072 mFormatCtx->flags |= AVFMT_FLAG_GENPTS;
1074 opts = setup_find_stream_info_opts(mFormatCtx, codec_opts);
1075 orig_nb_streams = mFormatCtx->nb_streams;
1077 err = avformat_find_stream_info(mFormatCtx, opts);
1079 ALOGE("%s: could not find codec parameters\n", mFilename);
1083 for (i = 0; i < orig_nb_streams; i++)
1084 av_dict_free(&opts[i]);
1088 mFormatCtx->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
1090 if (mSeekByBytes < 0)
1091 mSeekByBytes = !!(mFormatCtx->iformat->flags & AVFMT_TS_DISCONT);
1093 for (i = 0; i < (int)mFormatCtx->nb_streams; i++)
1094 mFormatCtx->streams[i]->discard = AVDISCARD_ALL;
1096 st_index[AVMEDIA_TYPE_VIDEO] =
1097 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_VIDEO,
1098 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
1100 st_index[AVMEDIA_TYPE_AUDIO] =
1101 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_AUDIO,
1102 wanted_stream[AVMEDIA_TYPE_AUDIO],
1103 st_index[AVMEDIA_TYPE_VIDEO],
1106 av_dump_format(mFormatCtx, 0, mFilename, 0);
1109 if (mFormatCtx->duration != AV_NOPTS_VALUE &&
1110 mFormatCtx->start_time != AV_NOPTS_VALUE) {
1111 int hours, mins, secs, us;
1113 ALOGV("file startTime: %lld", mFormatCtx->start_time);
1115 mDuration = mFormatCtx->duration;
1117 secs = mDuration / AV_TIME_BASE;
1118 us = mDuration % AV_TIME_BASE;
1123 ALOGI("the duration is %02d:%02d:%02d.%02d",
1124 hours, mins, secs, (100 * us) / AV_TIME_BASE);
1127 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
1128 audio_ret = stream_component_open(st_index[AVMEDIA_TYPE_AUDIO]);
1131 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
1132 video_ret = stream_component_open(st_index[AVMEDIA_TYPE_VIDEO]);
1135 if ( audio_ret < 0 && video_ret < 0) {
1136 ALOGE("%s: could not open codecs\n", mFilename);
1147 void FFmpegExtractor::deInitStreams()
1150 avformat_close_input(&mFormatCtx);
1156 status_t FFmpegExtractor::startReaderThread() {
1157 ALOGV("Starting reader thread");
1158 Mutex::Autolock autoLock(mLock);
1160 if (mReaderThreadStarted)
1163 pthread_attr_t attr;
1164 pthread_attr_init(&attr);
1165 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
1166 pthread_create(&mReaderThread, &attr, ReaderWrapper, this);
1167 pthread_attr_destroy(&attr);
1168 mReaderThreadStarted = true;
1169 ALOGD("Reader thread started");
1174 void FFmpegExtractor::stopReaderThread() {
1175 ALOGV("Stopping reader thread");
1176 Mutex::Autolock autoLock(mLock);
1178 if (!mReaderThreadStarted) {
1179 ALOGD("Reader thread have been stopped");
1186 pthread_join(mReaderThread, &dummy);
1187 mReaderThreadStarted = false;
1188 ALOGD("Reader thread stopped");
1192 void *FFmpegExtractor::ReaderWrapper(void *me) {
1193 ((FFmpegExtractor *)me)->readerEntry();
1198 void FFmpegExtractor::readerEntry() {
1200 AVPacket pkt1, *pkt = &pkt1;
1202 int pkt_in_play_range = 0;
1204 ALOGV("FFmpegExtractor::readerEntry");
1206 mVideoEOSReceived = false;
1207 mAudioEOSReceived = false;
1213 if (mPaused != mLastPaused) {
1214 mLastPaused = mPaused;
1216 mReadPauseReturn = av_read_pause(mFormatCtx);
1218 av_read_play(mFormatCtx);
1220 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
1222 (!strcmp(mFormatCtx->iformat->name, "rtsp") ||
1223 (mFormatCtx->pb && !strncmp(mFilename, "mmsh:", 5)))) {
1224 /* wait 10 ms to avoid trying to get another packet */
1232 ALOGV("readerEntry, mSeekReq: %d", mSeekReq);
1233 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, mSeekPos, INT64_MAX, mSeekFlags);
1235 ALOGE("%s: error while seeking", mFormatCtx->filename);
1237 if (mAudioStreamIdx >= 0) {
1238 packet_queue_flush(&mAudioQ);
1239 packet_queue_put(&mAudioQ, &flush_pkt);
1241 if (mVideoStreamIdx >= 0) {
1242 packet_queue_flush(&mVideoQ);
1243 packet_queue_put(&mVideoQ, &flush_pkt);
1250 /* if the queue are full, no need to read more */
1251 if ( mAudioQ.size + mVideoQ.size > MAX_QUEUE_SIZE
1252 || ( (mAudioQ .size > MIN_AUDIOQ_SIZE || mAudioStreamIdx < 0)
1253 && (mVideoQ .nb_packets > MIN_FRAMES || mVideoStreamIdx < 0))) {
1254 #if DEBUG_READ_ENTRY
1255 ALOGV("readerEntry, is full, fuck");
1263 if (mVideoStreamIdx >= 0) {
1264 av_init_packet(pkt);
1267 pkt->stream_index = mVideoStreamIdx;
1268 packet_queue_put(&mVideoQ, pkt);
1270 if (mAudioStreamIdx >= 0) {
1271 av_init_packet(pkt);
1274 pkt->stream_index = mAudioStreamIdx;
1275 packet_queue_put(&mAudioQ, pkt);
1278 #if DEBUG_READ_ENTRY
1279 ALOGV("readerEntry, eof = 1, mVideoQ.size: %d, mVideoQ.nb_packets: %d, mAudioQ.size: %d, mAudioQ.nb_packets: %d",
1280 mVideoQ.size, mVideoQ.nb_packets, mAudioQ.size, mAudioQ.nb_packets);
1282 if (mAudioQ.size + mVideoQ.size == 0) {
1292 ret = av_read_frame(mFormatCtx, pkt);
1295 if (ret == AVERROR_EOF || url_feof(mFormatCtx->pb))
1296 if (ret == AVERROR_EOF) {
1297 //ALOGV("ret == AVERROR_EOF");
1299 if (url_feof(mFormatCtx->pb)) {
1300 //ALOGV("url_feof(mFormatCtx->pb)");
1305 if (mFormatCtx->pb && mFormatCtx->pb->error) {
1306 ALOGE("mFormatCtx->pb->error: %d", mFormatCtx->pb->error);
1313 if (pkt->stream_index == mVideoStreamIdx) {
1314 if (mDefersToCreateVideoTrack) {
1315 AVCodecContext *avctx = mFormatCtx->streams[mVideoStreamIdx]->codec;
1317 int i = parser_split(avctx, pkt->data, pkt->size);
1318 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
1319 if (avctx->extradata)
1320 av_freep(&avctx->extradata);
1321 avctx->extradata_size= i;
1322 avctx->extradata = (uint8_t *)av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1323 if (!avctx->extradata) {
1324 //return AVERROR(ENOMEM);
1325 ret = AVERROR(ENOMEM);
1328 // sps + pps(there may be sei in it)
1329 memcpy(avctx->extradata, pkt->data, avctx->extradata_size);
1330 memset(avctx->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1332 av_free_packet(pkt);
1336 stream_component_open(mVideoStreamIdx);
1337 if (!mDefersToCreateVideoTrack)
1338 ALOGI("probe packet counter: %d when create video track ok", mProbePkts);
1339 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1340 ALOGI("probe packet counter to max: %d, create video track: %d",
1341 mProbePkts, !mDefersToCreateVideoTrack);
1343 } else if (pkt->stream_index == mAudioStreamIdx) {
1347 AVCodecContext *avctx = mFormatCtx->streams[mAudioStreamIdx]->codec;
1348 if (mAudioBsfc && pkt && pkt->data) {
1349 ret = av_bitstream_filter_filter(mAudioBsfc, avctx, NULL, &outbuf, &outbuf_size,
1350 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
1352 if (ret < 0 ||!outbuf_size) {
1353 av_free_packet(pkt);
1356 if (outbuf && outbuf != pkt->data) {
1357 memmove(pkt->data, outbuf, outbuf_size);
1358 pkt->size = outbuf_size;
1361 if (mDefersToCreateAudioTrack) {
1362 if (avctx->extradata_size <= 0) {
1363 av_free_packet(pkt);
1366 stream_component_open(mAudioStreamIdx);
1367 if (!mDefersToCreateAudioTrack)
1368 ALOGI("probe packet counter: %d when create audio track ok", mProbePkts);
1369 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1370 ALOGI("probe packet counter to max: %d, create audio track: %d",
1371 mProbePkts, !mDefersToCreateAudioTrack);
1375 if (pkt->stream_index == mAudioStreamIdx) {
1376 packet_queue_put(&mAudioQ, pkt);
1377 } else if (pkt->stream_index == mVideoStreamIdx) {
1378 packet_queue_put(&mVideoQ, pkt);
1380 av_free_packet(pkt);
1383 /* wait until the end */
1384 while (!mAbortRequest) {
1390 ALOGI("reader thread goto end...");
1392 /* close each stream */
1393 if (mAudioStreamIdx >= 0)
1394 stream_component_close(mAudioStreamIdx);
1395 if (mVideoStreamIdx >= 0)
1396 stream_component_close(mVideoStreamIdx);
1398 avformat_close_input(&mFormatCtx);
1402 ////////////////////////////////////////////////////////////////////////////////
1404 FFmpegExtractor::Track::Track(
1405 const sp<FFmpegExtractor> &extractor, sp<MetaData> meta, bool isAVC,
1406 AVStream *stream, PacketQueue *queue)
1407 : mExtractor(extractor),
1414 /* H.264 Video Types */
1416 mNal2AnnexB = false;
1422 CHECK(meta->findData(kKeyAVCC, &type, &data, &size));
1424 const uint8_t *ptr = (const uint8_t *)data;
1427 CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
1429 // The number of bytes used to encode the length of a NAL unit.
1430 mNALLengthSize = 1 + (ptr[4] & 3);
1432 ALOGV("the stream is AVC, the length of a NAL unit: %d", mNALLengthSize);
1438 mMediaType = mStream->codec->codec_type;
1439 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1442 FFmpegExtractor::Track::~Track() {
1445 status_t FFmpegExtractor::Track::start(MetaData *params) {
1446 Mutex::Autolock autoLock(mLock);
1447 //mExtractor->startReaderThread();
1451 status_t FFmpegExtractor::Track::stop() {
1452 Mutex::Autolock autoLock(mLock);
1453 mExtractor->stopReaderThread();
1457 sp<MetaData> FFmpegExtractor::Track::getFormat() {
1458 Mutex::Autolock autoLock(mLock);
1463 status_t FFmpegExtractor::Track::read(
1464 MediaBuffer **buffer, const ReadOptions *options) {
1467 Mutex::Autolock autoLock(mLock);
1470 bool seeking = false;
1471 bool waitKeyPkt = false;
1472 ReadOptions::SeekMode mode;
1473 int64_t pktTS = AV_NOPTS_VALUE;
1474 int64_t seekTimeUs = AV_NOPTS_VALUE;
1477 status_t status = OK;
1479 if (options && options->getSeekTo(&seekTimeUs, &mode)) {
1480 ALOGV("~~~%s seekTimeUs: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1481 /* add the stream start time */
1482 if (mStream->start_time != AV_NOPTS_VALUE)
1483 seekTimeUs += mStream->start_time * av_q2d(mStream->time_base) * 1000000;
1484 ALOGV("~~~%s seekTimeUs[+startTime]: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1486 if (mExtractor->stream_seek(seekTimeUs, mMediaType) == SEEK)
1491 if (mExtractor->packet_queue_get(mQueue, &pkt, 1) < 0) {
1492 mExtractor->reachedEOS(mMediaType);
1493 return ERROR_END_OF_STREAM;
1497 if (pkt.data != flush_pkt.data) {
1498 av_free_packet(&pkt);
1502 #if WAIT_KEY_PACKET_AFTER_SEEK
1508 if (pkt.data == flush_pkt.data) {
1509 ALOGV("read %s flush pkt", av_get_media_type_string(mMediaType));
1510 av_free_packet(&pkt);
1511 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1513 } else if (pkt.data == NULL && pkt.size == 0) {
1514 ALOGV("read %s eos pkt", av_get_media_type_string(mMediaType));
1515 av_free_packet(&pkt);
1516 mExtractor->reachedEOS(mMediaType);
1517 return ERROR_END_OF_STREAM;
1520 key = pkt.flags & AV_PKT_FLAG_KEY ? 1 : 0;
1523 if (pkt.pts == AV_NOPTS_VALUE)
1528 ALOGV("drop the no key packet");
1529 av_free_packet(&pkt);
1532 ALOGV("~~~~~~ got the key packet");
1537 if (mFirstKeyPktTimestamp == AV_NOPTS_VALUE) {
1538 // update the first key timestamp
1539 mFirstKeyPktTimestamp = pktTS;
1542 if (pktTS < mFirstKeyPktTimestamp) {
1543 ALOGV("drop the packet with the backward timestamp, maybe them are B-frames after I-frame ^_^");
1544 av_free_packet(&pkt);
1548 MediaBuffer *mediaBuffer = new MediaBuffer(pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
1549 mediaBuffer->meta_data()->clear();
1550 mediaBuffer->set_range(0, pkt.size);
1551 #if DISABLE_NAL_TO_ANNEXB
1552 mNal2AnnexB = false;
1554 if (mIsAVC && mNal2AnnexB) {
1555 /* Convert H.264 NAL format to annex b */
1556 if (mNALLengthSize >= 3 && mNALLengthSize <= 4 )
1558 uint8_t *dst = (uint8_t *)mediaBuffer->data();
1560 /* This only works for NAL sizes 3-4 */
1561 size_t len = pkt.size, i;
1562 uint8_t *ptr = pkt.data;
1563 while (len >= mNALLengthSize) {
1564 uint32_t nal_len = 0;
1565 for( i = 0; i < mNALLengthSize; i++ ) {
1566 nal_len = (nal_len << 8) | ptr[i];
1569 dst[mNALLengthSize - 1] = 1;
1570 if (nal_len > INT_MAX || nal_len > (unsigned int)len) {
1571 status = ERROR_MALFORMED;
1574 dst += mNALLengthSize;
1575 ptr += mNALLengthSize;
1576 len -= mNALLengthSize;
1578 memcpy(dst, ptr, nal_len);
1585 status = ERROR_MALFORMED;
1589 ALOGV("status != OK");
1590 mediaBuffer->release();
1592 av_free_packet(&pkt);
1593 return ERROR_MALFORMED;
1596 memcpy(mediaBuffer->data(), pkt.data, pkt.size);
1599 int64_t start_time = mStream->start_time != AV_NOPTS_VALUE ? mStream->start_time : 0;
1600 timeUs = (int64_t)((pktTS - start_time) * av_q2d(mStream->time_base) * 1000000);
1603 ALOGV("read %s pkt, size: %d, key: %d, pts: %lld, dts: %lld, timeUs[-startTime]: %llu us (%.2f secs)",
1604 av_get_media_type_string(mMediaType), pkt.size, key, pkt.pts, pkt.dts, timeUs, timeUs/1E6);
1607 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
1608 mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, key);
1610 *buffer = mediaBuffer;
1612 av_free_packet(&pkt);
1617 ////////////////////////////////////////////////////////////////////////////////
1619 // LegacySniffFFMPEG
1622 const char *container;
1625 static formatmap FILE_FORMATS[] = {
1626 {"mpeg", MEDIA_MIMETYPE_CONTAINER_MPEG2PS },
1627 {"mpegts", MEDIA_MIMETYPE_CONTAINER_TS },
1628 {"mov,mp4,m4a,3gp,3g2,mj2", MEDIA_MIMETYPE_CONTAINER_MOV },
1629 {"matroska,webm", MEDIA_MIMETYPE_CONTAINER_MATROSKA },
1630 {"asf", MEDIA_MIMETYPE_CONTAINER_ASF },
1631 {"rm", MEDIA_MIMETYPE_CONTAINER_RM },
1632 {"flv", MEDIA_MIMETYPE_CONTAINER_FLV },
1633 {"avi", MEDIA_MIMETYPE_CONTAINER_AVI },
1634 {"wav", MEDIA_MIMETYPE_CONTAINER_WAV },
1635 {"ape", MEDIA_MIMETYPE_CONTAINER_APE },
1636 {"dts", MEDIA_MIMETYPE_CONTAINER_DTS },
1637 {"flac", MEDIA_MIMETYPE_CONTAINER_FLAC },
1640 static void adjustMOVConfidence(AVFormatContext *ic, float *confidence)
1642 AVDictionary *tags = NULL;
1643 AVDictionaryEntry *tag = NULL;
1645 tags = ic->metadata;
1647 //NOTE: You can use command to show these tags,
1648 //e.g. "ffprobe -show_format 2012.mov"
1650 tag = av_dict_get(tags, "major_brand", NULL, 0);
1655 ALOGV("major_brand tag is:%s", tag->value);
1657 //when MEDIA_MIMETYPE_CONTAINER_MOV
1658 //WTF, MPEG4Extractor.cpp can not extractor mov format
1659 //NOTE: isCompatibleBrand(MPEG4Extractor.cpp)
1660 // Won't promise that the following file types can be played.
1661 // Just give these file types a chance.
1662 // FOURCC('q', 't', ' ', ' '), // Apple's QuickTime
1664 if (!strcmp(tag->value, "qt ")) {
1665 ALOGI("format is mov, confidence should be larger than mpeg4");
1666 //the MEDIA_MIMETYPE_CONTAINER_MPEG4 of confidence is 0.4f
1667 *confidence = 0.41f;
1671 static void adjustVideoCodecConfidence(AVFormatContext *ic,
1672 enum AVCodecID codec_id, float *confidence)
1677 static void adjustAudioCodecConfidence(AVFormatContext *ic,
1678 enum AVCodecID codec_id, float *confidence)
1682 //TODO. if the other stream(e.g. mp3) is supported by stagefright
1683 ALOGI("ffmpeg can demux ac3 only");
1684 *confidence = 0.88f;
1690 static void adjustCodecConfidence(AVFormatContext *ic, float *confidence)
1692 unsigned int idx = 0;
1693 AVCodecContext *avctx = NULL;
1694 AVMediaType codec_type = AVMEDIA_TYPE_UNKNOWN;
1695 enum AVCodecID codec_id = AV_CODEC_ID_NONE;
1697 for (idx = 0; idx < ic->nb_streams; idx++)
1699 avctx = ic->streams[idx]->codec;
1700 codec_type = avctx->codec_type;
1701 codec_id = avctx->codec_id;
1703 if (codec_type == AVMEDIA_TYPE_VIDEO) {
1704 adjustVideoCodecConfidence(ic, codec_id, confidence);
1705 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
1706 adjustAudioCodecConfidence(ic, codec_id, confidence);
1711 static void adjustConfidenceIfNeeded(const char *mime,
1712 AVFormatContext *ic, float *confidence)
1715 if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MOV)) {
1716 adjustMOVConfidence(ic, confidence);
1722 adjustCodecConfidence(ic, confidence);
1725 static const char *LegacySniffFFMPEG(const char *uri, float *confidence)
1729 const char *container = NULL;
1730 AVFormatContext *ic = NULL;
1732 status_t status = initFFmpeg();
1734 ALOGE("could not init ffmpeg");
1738 ic = avformat_alloc_context();
1739 err = avformat_open_input(&ic, uri, NULL, NULL);
1741 ALOGE("avformat_open_input faild, uri: %s err: %d", uri, err);
1745 av_dump_format(ic, 0, uri, 0);
1747 ALOGI("FFmpegExtrator, uri: %s, format_name: %s, format_long_name: %s",
1748 uri, ic->iformat->name, ic->iformat->long_name);
1750 ALOGI("list the formats suppoted by ffmpeg: ");
1751 ALOGI("========================================");
1752 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1753 ALOGV("format_names[%02d]: %s", i, FILE_FORMATS[i].format);
1755 ALOGI("========================================");
1757 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1758 int len = strlen(FILE_FORMATS[i].format);
1759 if (!av_strncasecmp(ic->iformat->name, FILE_FORMATS[i].format, len)) {
1760 container = FILE_FORMATS[i].container;
1766 adjustConfidenceIfNeeded(container, ic, confidence);
1769 avformat_close_input(&ic);
1775 static const char *BetterSniffFFMPEG(const sp<DataSource> &source, float *confidence)
1780 char url[128] = {0};
1781 const char *container = NULL;
1782 AVFormatContext *ic = NULL;
1784 status_t status = initFFmpeg();
1786 ALOGE("could not init ffmpeg");
1790 ALOGI("android-source:%p", &source);
1792 // pass the addr of smart pointer("source")
1793 snprintf(url, sizeof(url), "android-source:%p", &source);
1795 ic = avformat_alloc_context();
1796 err = avformat_open_input(&ic, url, NULL, NULL);
1798 ALOGE("avformat_open_input faild, url: %s err: %d", url, err);
1802 av_dump_format(ic, 0, url, 0);
1804 ALOGI("FFmpegExtrator, url: %s, format_name: %s, format_long_name: %s",
1805 url, ic->iformat->name, ic->iformat->long_name);
1807 ALOGI("list the formats suppoted by ffmpeg: ");
1808 ALOGI("========================================");
1809 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1810 ALOGV("format_names[%02d]: %s", i, FILE_FORMATS[i].format);
1812 ALOGI("========================================");
1814 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1815 int len = strlen(FILE_FORMATS[i].format);
1816 if (!av_strncasecmp(ic->iformat->name, FILE_FORMATS[i].format, len)) {
1817 container = FILE_FORMATS[i].container;
1823 adjustConfidenceIfNeeded(container, ic, confidence);
1826 avformat_close_input(&ic);
1833 const sp<DataSource> &source, String8 *mimeType, float *confidence,
1834 sp<AMessage> *meta) {
1835 ALOGV("SniffFFMPEG");
1837 *confidence = 0.08f; // be the last resort, by default
1839 const char *container = BetterSniffFFMPEG(source, confidence);
1841 String8 uri = source->getUri();
1845 ALOGW("sniff through BetterSniffFFMPEG failed, try LegacySniffFFMPEG");
1847 container = LegacySniffFFMPEG(uri, confidence);
1849 ALOGI("sniff through LegacySniffFFMPEG success");
1852 ALOGI("sniff through BetterSniffFFMPEG success");
1855 if (container == NULL)
1858 ALOGV("found container: %s", container);
1860 mimeType->setTo(container);
1862 /* use MPEG4Extractor(not extended extractor) for HTTP source only */
1863 if (!av_strcasecmp(container, MEDIA_MIMETYPE_CONTAINER_MPEG4)
1864 && (source->flags() & DataSource::kIsCachingDataSource)) {
1868 ALOGD("ffmpeg detected media content as '%s' with confidence %.2f",
1869 container, *confidence);
1871 *meta = new AMessage;
1872 (*meta)->setString("extended-extractor", "extended-extractor");
1873 (*meta)->setString("extended-extractor-subtype", "ffmpegextractor");
1875 //*confidence = 0.88f;
1877 if (*confidence > 0.08f) {
1878 (*meta)->setString("extended-extractor-use", "ffmpegextractor");
1884 MediaExtractor *CreateFFmpegExtractor(const sp<DataSource> &source, const char *mime, const sp<AMessage> &meta) {
1885 MediaExtractor *ret = NULL;
1887 if (meta.get() && meta->findString("extended-extractor", ¬use) && (
1888 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4) ||
1889 !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_MPEG) ||
1890 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MOV) ||
1891 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MATROSKA) ||
1892 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_TS) ||
1893 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2PS) ||
1894 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_AVI) ||
1895 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_ASF) ||
1896 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WEBM) ||
1897 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMV) ||
1898 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPG) ||
1899 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLV) ||
1900 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DIVX) ||
1901 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RM) ||
1902 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WAV) ||
1903 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLAC) ||
1904 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_APE) ||
1905 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DTS) ||
1906 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MP2) ||
1907 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RA) ||
1908 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMA))) {
1909 ret = new FFmpegExtractor(source);
1912 ALOGD("%ssupported mime: %s", (ret ? "" : "un"), mime);
1916 } // namespace android
1918 extern "C" void getExtractorPlugin(android::MediaExtractor::Plugin *plugin)
1920 plugin->sniff = android::SniffFFMPEG;
1921 plugin->create = android::CreateFFmpegExtractor;