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_FLV1 ||
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_MPEG1VIDEO:
488 case CODEC_ID_MPEG2VIDEO:
495 case CODEC_ID_WMAPRO:
496 case CODEC_ID_WMALOSSLESS:
513 ALOGE("unsupport the codec, id: 0x%0x", avctx->codec_id);
516 ALOGV("support the codec");
519 ssize_t index = mTracks.indexOfKey(stream_index);
522 ALOGE("this track already exists");
526 mFormatCtx->streams[stream_index]->discard = AVDISCARD_DEFAULT;
529 av_get_codec_tag_string(tagbuf, sizeof(tagbuf), avctx->codec_tag);
530 ALOGV("Tag %s/0x%08x with codec id '%d'\n", tagbuf, avctx->codec_tag, avctx->codec_id);
532 switch (avctx->codec_type) {
533 case AVMEDIA_TYPE_VIDEO:
534 if (mVideoStreamIdx == -1)
535 mVideoStreamIdx = stream_index;
536 if (mVideoStream == NULL)
537 mVideoStream = mFormatCtx->streams[stream_index];
538 if (!mVideoQInited) {
539 packet_queue_init(&mVideoQ);
540 mVideoQInited = true;
543 ret = check_extradata(avctx);
546 // disable the stream
547 mVideoStreamIdx = -1;
549 packet_queue_end(&mVideoQ);
550 mVideoQInited = false;
551 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
556 if (avctx->extradata) {
557 ALOGV("video stream extradata:");
558 hexdump(avctx->extradata, avctx->extradata_size);
560 ALOGV("video stream no extradata, but we can ignore it.");
565 switch(avctx->codec_id) {
569 * http://msdn.microsoft.com/en-us/library/dd757808(v=vs.85).aspx
571 //if (avctx->codec_tag && avctx->codec_tag == AV_RL32("avc1")) {
572 if (avctx->extradata[0] == 1 /* configurationVersion */) {
573 // H.264 bitstream without start codes.
577 if (avctx->width == 0 || avctx->height == 0) {
578 int32_t width, height;
579 sp<ABuffer> seqParamSet = new ABuffer(avctx->extradata_size - 8);
580 memcpy(seqParamSet->data(), avctx->extradata + 8, avctx->extradata_size - 8);
581 FindAVCDimensions(seqParamSet, &width, &height);
582 avctx->width = width;
583 avctx->height = height;
586 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
587 meta->setData(kKeyAVCC, kTypeAVCC, avctx->extradata, avctx->extradata_size);
589 // H.264 bitstream with start codes.
593 /* set NULL to release meta as we will new a meta in MakeAVCCodecSpecificData() fxn */
597 sp<ABuffer> buffer = new ABuffer(avctx->extradata_size);
598 memcpy(buffer->data(), avctx->extradata, avctx->extradata_size);
599 meta = MakeAVCCodecSpecificData(buffer);
604 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
606 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
607 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
608 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
609 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
616 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
618 case CODEC_ID_MPEG1VIDEO:
619 case CODEC_ID_MPEG2VIDEO:
620 ALOGV("MPEG%dVIDEO", avctx->codec_id == CODEC_ID_MPEG2VIDEO ? 2 : 1);
621 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
623 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
624 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
625 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
626 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
631 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VC1);
632 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
636 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
637 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_7);
641 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
642 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
643 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_8);
647 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
648 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
649 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_9);
653 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
654 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
655 meta->setInt32(kKeyRVVersion, kTypeRVVer_G2); //http://en.wikipedia.org/wiki/RealVideo
658 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
659 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
660 meta->setInt32(kKeyRVVersion, kTypeRVVer_8); //http://en.wikipedia.org/wiki/RealVideo
664 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
665 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
666 meta->setInt32(kKeyRVVersion, kTypeRVVer_9); //http://en.wikipedia.org/wiki/RealVideo
670 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_FLV1);
671 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
674 CHECK(!"Should not be here. Unsupported codec.");
678 ALOGI("width: %d, height: %d, bit_rate: %d",
679 avctx->width, avctx->height, avctx->bit_rate);
681 meta->setInt32(kKeyWidth, avctx->width);
682 meta->setInt32(kKeyHeight, avctx->height);
683 if (avctx->bit_rate > 0)
684 meta->setInt32(kKeyBitRate, avctx->bit_rate);
685 if (mVideoStream->duration != AV_NOPTS_VALUE) {
686 int64_t duration = mVideoStream->duration * av_q2d(mVideoStream->time_base) * 1000000;
688 ALOGV("video startTime: %lld", mVideoStream->start_time);
689 meta->setInt64(kKeyDuration, duration);
691 // default when no stream duration
692 meta->setInt64(kKeyDuration, mFormatCtx->duration);
695 ALOGV("create a video track");
697 stream_index, new Track(this, meta, isAVC, mVideoStream, &mVideoQ));
699 mDefersToCreateVideoTrack = false;
702 case AVMEDIA_TYPE_AUDIO:
703 if (mAudioStreamIdx == -1)
704 mAudioStreamIdx = stream_index;
705 if (mAudioStream == NULL)
706 mAudioStream = mFormatCtx->streams[stream_index];
707 if (!mAudioQInited) {
708 packet_queue_init(&mAudioQ);
709 mAudioQInited = true;
712 ret = check_extradata(avctx);
715 // disable the stream
716 mAudioStreamIdx = -1;
718 packet_queue_end(&mAudioQ);
719 mAudioQInited = false;
720 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
725 if (avctx->extradata) {
726 ALOGV("audio stream extradata:");
727 hexdump(avctx->extradata, avctx->extradata_size);
729 ALOGV("audio stream no extradata, but we can ignore it.");
732 switch(avctx->codec_id) {
736 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
741 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
746 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
751 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
756 const uint8_t *header;
757 uint8_t profile, sf_index, channel;
759 header = avctx->extradata;
760 CHECK(header != NULL);
762 // AudioSpecificInfo follows
763 // oooo offf fccc c000
764 // o - audioObjectType
765 // f - samplingFreqIndex
767 profile = ((header[0] & 0xf8) >> 3) - 1;
768 sf_index = (header[0] & 0x07) << 1 | (header[1] & 0x80) >> 7;
769 sr = get_sample_rate(sf_index);
771 ALOGE("unsupport the sample rate");
774 channel = (header[1] >> 3) & 0xf;
775 ALOGV("profile: %d, sf_index: %d, channel: %d", profile, sf_index, channel);
777 meta = MakeAACCodecSpecificData(profile, sf_index, channel);
778 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
780 case CODEC_ID_WMAV1: // TODO, version?
783 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
784 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
789 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
790 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
791 meta->setInt32(kKeyWMAVersion, kTypeWMA);
793 case CODEC_ID_WMAPRO:
796 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
797 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
798 meta->setInt32(kKeyWMAVersion, kTypeWMAPro);
800 case CODEC_ID_WMALOSSLESS:
801 ALOGV("WMALOSSLESS");
803 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
804 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
805 meta->setInt32(kKeyWMAVersion, kTypeWMALossLess);
807 case CODEC_ID_COOK: // audio codec in RMVB
810 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RA);
811 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
816 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_APE);
817 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
822 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_DTS);
823 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
828 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_FLAC);
829 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
832 CHECK(!"Should not be here. Unsupported codec.");
836 ALOGI("bit_rate: %d, sample_rate: %d, channels: %d, "
837 "bits_per_coded_sample: %d, block_align:%d",
838 avctx->bit_rate, avctx->sample_rate, avctx->channels,
839 avctx->bits_per_coded_sample, avctx->block_align);
841 meta->setInt32(kKeySampleRate, avctx->sample_rate);
842 meta->setInt32(kKeyChannelCount, avctx->channels);
843 meta->setInt32(kKeyBitspersample, avctx->bits_per_coded_sample);
844 meta->setInt32(kKeyBitRate, avctx->bit_rate);
845 meta->setInt32(kKeyBlockAlign, avctx->block_align);
846 if (mAudioStream->duration != AV_NOPTS_VALUE) {
847 int64_t duration = mAudioStream->duration * av_q2d(mAudioStream->time_base) * 1000000;
849 ALOGV("audio startTime: %lld", mAudioStream->start_time);
850 meta->setInt64(kKeyDuration, duration);
852 // default when no stream duration
853 meta->setInt64(kKeyDuration, mFormatCtx->duration);
856 ALOGV("create a audio track");
858 stream_index, new Track(this, meta, false, mAudioStream, &mAudioQ));
860 mDefersToCreateAudioTrack = false;
863 case AVMEDIA_TYPE_SUBTITLE:
865 CHECK(!"Should not be here. Unsupported media type.");
868 CHECK(!"Should not be here. Unsupported media type.");
874 void FFmpegExtractor::stream_component_close(int stream_index)
876 AVCodecContext *avctx;
878 if (stream_index < 0 || stream_index >= (int)mFormatCtx->nb_streams)
880 avctx = mFormatCtx->streams[stream_index]->codec;
882 switch (avctx->codec_type) {
883 case AVMEDIA_TYPE_VIDEO:
884 ALOGV("packet_queue_abort videoq");
885 packet_queue_abort(&mVideoQ);
886 /* wait until the end */
887 while (!mAbortRequest && !mVideoEOSReceived) {
888 ALOGV("wait for video received");
891 ALOGV("packet_queue_end videoq");
892 packet_queue_end(&mVideoQ);
894 case AVMEDIA_TYPE_AUDIO:
895 ALOGV("packet_queue_abort audioq");
896 packet_queue_abort(&mAudioQ);
897 while (!mAbortRequest && !mAudioEOSReceived) {
898 ALOGV("wait for audio received");
901 ALOGV("packet_queue_end audioq");
902 packet_queue_end(&mAudioQ);
904 case AVMEDIA_TYPE_SUBTITLE:
910 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
911 switch (avctx->codec_type) {
912 case AVMEDIA_TYPE_VIDEO:
914 mVideoStreamIdx = -1;
916 av_bitstream_filter_close(mVideoBsfc);
920 case AVMEDIA_TYPE_AUDIO:
922 mAudioStreamIdx = -1;
924 av_bitstream_filter_close(mAudioBsfc);
928 case AVMEDIA_TYPE_SUBTITLE:
935 void FFmpegExtractor::reachedEOS(enum AVMediaType media_type)
937 Mutex::Autolock autoLock(mLock);
939 if (media_type == AVMEDIA_TYPE_VIDEO) {
940 mVideoEOSReceived = true;
941 } else if (media_type == AVMEDIA_TYPE_AUDIO) {
942 mAudioEOSReceived = true;
946 /* seek in the stream */
947 int FFmpegExtractor::stream_seek(int64_t pos, enum AVMediaType media_type)
949 Mutex::Autolock autoLock(mLock);
951 if (mVideoStreamIdx >= 0 &&
952 mAudioStreamIdx >= 0 &&
953 media_type == AVMEDIA_TYPE_AUDIO &&
954 !mVideoEOSReceived) {
959 if (mAudioStreamIdx >= 0)
960 packet_queue_flush(&mAudioQ);
961 if (mVideoStreamIdx >= 0)
962 packet_queue_flush(&mVideoQ);
965 mSeekFlags &= ~AVSEEK_FLAG_BYTE;
972 int FFmpegExtractor::decode_interrupt_cb(void *ctx)
974 FFmpegExtractor *extrator = static_cast<FFmpegExtractor *>(ctx);
975 return extrator->mAbortRequest;
978 void FFmpegExtractor::print_error_ex(const char *filename, int err)
981 const char *errbuf_ptr = errbuf;
983 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
984 errbuf_ptr = strerror(AVUNERROR(err));
985 ALOGI("%s: %s\n", filename, errbuf_ptr);
988 void FFmpegExtractor::buildFileName(const sp<DataSource> &source)
991 ALOGI("android-source:%p", source.get());
992 // pass the addr of smart pointer("source")
993 snprintf(mFilename, sizeof(mFilename), "android-source:%p", source.get());
994 ALOGI("build mFilename: %s", mFilename);
996 const char *url = mDataSource->getNamURI();
998 ALOGI("url is error!");
1002 if (!strcmp(url, "-")) {
1003 av_strlcpy(mFilename, "pipe:", strlen("pipe:") + 1);
1005 av_strlcpy(mFilename, url, strlen(url) + 1);
1007 ALOGI("build url: %s, mFilename: %s", url, mFilename);
1011 void FFmpegExtractor::setFFmpegDefaultOpts()
1014 #if DEBUG_DISABLE_VIDEO
1019 #if DEBUG_DISABLE_AUDIO
1025 mSeekByBytes = 0; /* seek by bytes 0=off 1=on -1=auto" */
1026 mDuration = AV_NOPTS_VALUE;
1027 mSeekPos = AV_NOPTS_VALUE;
1031 mVideoStreamIdx = -1;
1032 mAudioStreamIdx = -1;
1033 mVideoStream = NULL;
1034 mAudioStream = NULL;
1035 mVideoQInited = false;
1036 mAudioQInited = false;
1037 mDefersToCreateVideoTrack = false;
1038 mDefersToCreateAudioTrack = false;
1051 int FFmpegExtractor::initStreams()
1055 status_t status = UNKNOWN_ERROR;
1057 int ret = 0, audio_ret = -1, video_ret = -1;
1058 int pkt_in_play_range = 0;
1059 AVDictionaryEntry *t = NULL;
1060 AVDictionary **opts = NULL;
1061 int orig_nb_streams = 0;
1062 int st_index[AVMEDIA_TYPE_NB] = {0};
1063 int wanted_stream[AVMEDIA_TYPE_NB] = {0};
1064 st_index[AVMEDIA_TYPE_AUDIO] = -1;
1065 st_index[AVMEDIA_TYPE_VIDEO] = -1;
1066 wanted_stream[AVMEDIA_TYPE_AUDIO] = -1;
1067 wanted_stream[AVMEDIA_TYPE_VIDEO] = -1;
1068 const char *mime = NULL;
1070 setFFmpegDefaultOpts();
1072 status = initFFmpeg();
1077 mFFmpegInited = true;
1079 av_init_packet(&flush_pkt);
1080 flush_pkt.data = (uint8_t *)"FLUSH";
1083 mFormatCtx = avformat_alloc_context();
1086 ALOGE("oom for alloc avformat context");
1090 mFormatCtx->interrupt_callback.callback = decode_interrupt_cb;
1091 mFormatCtx->interrupt_callback.opaque = this;
1092 ALOGV("mFilename: %s", mFilename);
1093 err = avformat_open_input(&mFormatCtx, mFilename, NULL, &format_opts);
1095 print_error_ex(mFilename, err);
1099 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1100 ALOGE("Option %s not found.\n", t->key);
1101 //ret = AVERROR_OPTION_NOT_FOUND;
1107 mFormatCtx->flags |= AVFMT_FLAG_GENPTS;
1109 opts = setup_find_stream_info_opts(mFormatCtx, codec_opts);
1110 orig_nb_streams = mFormatCtx->nb_streams;
1112 err = avformat_find_stream_info(mFormatCtx, opts);
1114 ALOGE("%s: could not find codec parameters\n", mFilename);
1118 for (i = 0; i < orig_nb_streams; i++)
1119 av_dict_free(&opts[i]);
1122 mime = findMatchingContainer(mFormatCtx->iformat->name);
1123 CHECK(mime != NULL);
1124 mMeta->setCString(kKeyMIMEType, mime);
1127 mFormatCtx->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
1129 if (mSeekByBytes < 0)
1130 mSeekByBytes = !!(mFormatCtx->iformat->flags & AVFMT_TS_DISCONT);
1132 for (i = 0; i < (int)mFormatCtx->nb_streams; i++)
1133 mFormatCtx->streams[i]->discard = AVDISCARD_ALL;
1135 st_index[AVMEDIA_TYPE_VIDEO] =
1136 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_VIDEO,
1137 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
1139 st_index[AVMEDIA_TYPE_AUDIO] =
1140 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_AUDIO,
1141 wanted_stream[AVMEDIA_TYPE_AUDIO],
1142 st_index[AVMEDIA_TYPE_VIDEO],
1145 av_dump_format(mFormatCtx, 0, mFilename, 0);
1148 if (mFormatCtx->duration != AV_NOPTS_VALUE &&
1149 mFormatCtx->start_time != AV_NOPTS_VALUE) {
1150 int hours, mins, secs, us;
1152 ALOGV("file startTime: %lld", mFormatCtx->start_time);
1154 mDuration = mFormatCtx->duration;
1156 secs = mDuration / AV_TIME_BASE;
1157 us = mDuration % AV_TIME_BASE;
1162 ALOGI("the duration is %02d:%02d:%02d.%02d",
1163 hours, mins, secs, (100 * us) / AV_TIME_BASE);
1166 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
1167 audio_ret = stream_component_open(st_index[AVMEDIA_TYPE_AUDIO]);
1170 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
1171 video_ret = stream_component_open(st_index[AVMEDIA_TYPE_VIDEO]);
1174 if ( audio_ret < 0 && video_ret < 0) {
1175 ALOGE("%s: could not open codecs\n", mFilename);
1186 void FFmpegExtractor::deInitStreams()
1189 avformat_close_input(&mFormatCtx);
1192 if (mFFmpegInited) {
1197 status_t FFmpegExtractor::startReaderThread() {
1198 ALOGV("Starting reader thread");
1199 Mutex::Autolock autoLock(mLock);
1201 if (mReaderThreadStarted)
1204 pthread_attr_t attr;
1205 pthread_attr_init(&attr);
1206 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
1207 pthread_create(&mReaderThread, &attr, ReaderWrapper, this);
1208 pthread_attr_destroy(&attr);
1209 mReaderThreadStarted = true;
1210 ALOGD("Reader thread started");
1215 void FFmpegExtractor::stopReaderThread() {
1216 ALOGV("Stopping reader thread");
1217 Mutex::Autolock autoLock(mLock);
1219 if (!mReaderThreadStarted) {
1220 ALOGD("Reader thread have been stopped");
1227 pthread_join(mReaderThread, &dummy);
1228 mReaderThreadStarted = false;
1229 ALOGD("Reader thread stopped");
1233 void *FFmpegExtractor::ReaderWrapper(void *me) {
1234 ((FFmpegExtractor *)me)->readerEntry();
1239 void FFmpegExtractor::readerEntry() {
1241 AVPacket pkt1, *pkt = &pkt1;
1243 int pkt_in_play_range = 0;
1245 ALOGV("FFmpegExtractor enter thread(readerEntry)");
1247 mVideoEOSReceived = false;
1248 mAudioEOSReceived = false;
1254 if (mPaused != mLastPaused) {
1255 mLastPaused = mPaused;
1257 mReadPauseReturn = av_read_pause(mFormatCtx);
1259 av_read_play(mFormatCtx);
1261 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
1263 (!strcmp(mFormatCtx->iformat->name, "rtsp") ||
1264 (mFormatCtx->pb && !strncmp(mFilename, "mmsh:", 5)))) {
1265 /* wait 10 ms to avoid trying to get another packet */
1273 ALOGV("readerEntry, mSeekReq: %d", mSeekReq);
1274 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, mSeekPos, INT64_MAX, mSeekFlags);
1276 ALOGE("%s: error while seeking", mFormatCtx->filename);
1278 if (mAudioStreamIdx >= 0) {
1279 packet_queue_flush(&mAudioQ);
1280 packet_queue_put(&mAudioQ, &flush_pkt);
1282 if (mVideoStreamIdx >= 0) {
1283 packet_queue_flush(&mVideoQ);
1284 packet_queue_put(&mVideoQ, &flush_pkt);
1291 /* if the queue are full, no need to read more */
1292 if ( mAudioQ.size + mVideoQ.size > MAX_QUEUE_SIZE
1293 || ( (mAudioQ .size > MIN_AUDIOQ_SIZE || mAudioStreamIdx < 0)
1294 && (mVideoQ .nb_packets > MIN_FRAMES || mVideoStreamIdx < 0))) {
1295 #if DEBUG_READ_ENTRY
1296 ALOGV("readerEntry, is full, fuck");
1304 if (mVideoStreamIdx >= 0) {
1305 av_init_packet(pkt);
1308 pkt->stream_index = mVideoStreamIdx;
1309 packet_queue_put(&mVideoQ, pkt);
1311 if (mAudioStreamIdx >= 0) {
1312 av_init_packet(pkt);
1315 pkt->stream_index = mAudioStreamIdx;
1316 packet_queue_put(&mAudioQ, pkt);
1319 #if DEBUG_READ_ENTRY
1320 ALOGV("readerEntry, eof = 1, mVideoQ.size: %d, mVideoQ.nb_packets: %d, mAudioQ.size: %d, mAudioQ.nb_packets: %d",
1321 mVideoQ.size, mVideoQ.nb_packets, mAudioQ.size, mAudioQ.nb_packets);
1323 if (mAudioQ.size + mVideoQ.size == 0) {
1333 ret = av_read_frame(mFormatCtx, pkt);
1336 if (ret == AVERROR_EOF || url_feof(mFormatCtx->pb))
1337 if (ret == AVERROR_EOF) {
1338 //ALOGV("ret == AVERROR_EOF");
1340 if (url_feof(mFormatCtx->pb)) {
1341 //ALOGV("url_feof(mFormatCtx->pb)");
1346 if (mFormatCtx->pb && mFormatCtx->pb->error) {
1347 ALOGE("mFormatCtx->pb->error: %d", mFormatCtx->pb->error);
1354 if (pkt->stream_index == mVideoStreamIdx) {
1355 if (mDefersToCreateVideoTrack) {
1356 AVCodecContext *avctx = mFormatCtx->streams[mVideoStreamIdx]->codec;
1358 int i = parser_split(avctx, pkt->data, pkt->size);
1359 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
1360 if (avctx->extradata)
1361 av_freep(&avctx->extradata);
1362 avctx->extradata_size= i;
1363 avctx->extradata = (uint8_t *)av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1364 if (!avctx->extradata) {
1365 //return AVERROR(ENOMEM);
1366 ret = AVERROR(ENOMEM);
1369 // sps + pps(there may be sei in it)
1370 memcpy(avctx->extradata, pkt->data, avctx->extradata_size);
1371 memset(avctx->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1373 av_free_packet(pkt);
1377 stream_component_open(mVideoStreamIdx);
1378 if (!mDefersToCreateVideoTrack)
1379 ALOGI("probe packet counter: %d when create video track ok", mProbePkts);
1380 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1381 ALOGI("probe packet counter to max: %d, create video track: %d",
1382 mProbePkts, !mDefersToCreateVideoTrack);
1384 } else if (pkt->stream_index == mAudioStreamIdx) {
1388 AVCodecContext *avctx = mFormatCtx->streams[mAudioStreamIdx]->codec;
1389 if (mAudioBsfc && pkt && pkt->data) {
1390 ret = av_bitstream_filter_filter(mAudioBsfc, avctx, NULL, &outbuf, &outbuf_size,
1391 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
1393 if (ret < 0 ||!outbuf_size) {
1394 av_free_packet(pkt);
1397 if (outbuf && outbuf != pkt->data) {
1398 memmove(pkt->data, outbuf, outbuf_size);
1399 pkt->size = outbuf_size;
1402 if (mDefersToCreateAudioTrack) {
1403 if (avctx->extradata_size <= 0) {
1404 av_free_packet(pkt);
1407 stream_component_open(mAudioStreamIdx);
1408 if (!mDefersToCreateAudioTrack)
1409 ALOGI("probe packet counter: %d when create audio track ok", mProbePkts);
1410 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1411 ALOGI("probe packet counter to max: %d, create audio track: %d",
1412 mProbePkts, !mDefersToCreateAudioTrack);
1416 if (pkt->stream_index == mAudioStreamIdx) {
1417 packet_queue_put(&mAudioQ, pkt);
1418 } else if (pkt->stream_index == mVideoStreamIdx) {
1419 packet_queue_put(&mVideoQ, pkt);
1421 av_free_packet(pkt);
1424 /* wait until the end */
1425 while (!mAbortRequest) {
1431 ALOGI("reader thread goto end...");
1433 /* close each stream */
1434 if (mAudioStreamIdx >= 0)
1435 stream_component_close(mAudioStreamIdx);
1436 if (mVideoStreamIdx >= 0)
1437 stream_component_close(mVideoStreamIdx);
1439 avformat_close_input(&mFormatCtx);
1442 ALOGV("FFmpegExtractor exit thread(readerEntry)");
1445 ////////////////////////////////////////////////////////////////////////////////
1447 FFmpegExtractor::Track::Track(
1448 FFmpegExtractor *extractor, sp<MetaData> meta, bool isAVC,
1449 AVStream *stream, PacketQueue *queue)
1450 : mExtractor(extractor),
1457 /* H.264 Video Types */
1459 mNal2AnnexB = false;
1465 CHECK(meta->findData(kKeyAVCC, &type, &data, &size));
1467 const uint8_t *ptr = (const uint8_t *)data;
1470 CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
1472 // The number of bytes used to encode the length of a NAL unit.
1473 mNALLengthSize = 1 + (ptr[4] & 3);
1475 ALOGV("the stream is AVC, the length of a NAL unit: %d", mNALLengthSize);
1481 mMediaType = mStream->codec->codec_type;
1482 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1485 FFmpegExtractor::Track::~Track() {
1486 ALOGV("FFmpegExtractor::Track::~Track %s",
1487 av_get_media_type_string(mMediaType));
1492 status_t FFmpegExtractor::Track::start(MetaData *params) {
1493 ALOGV("FFmpegExtractor::Track::start %s",
1494 av_get_media_type_string(mMediaType));
1495 Mutex::Autolock autoLock(mLock);
1496 //mExtractor->startReaderThread();
1500 status_t FFmpegExtractor::Track::stop() {
1501 ALOGV("FFmpegExtractor::Track::stop %s",
1502 av_get_media_type_string(mMediaType));
1503 Mutex::Autolock autoLock(mLock);
1504 //mExtractor->stopReaderThread();
1508 sp<MetaData> FFmpegExtractor::Track::getFormat() {
1509 Mutex::Autolock autoLock(mLock);
1514 status_t FFmpegExtractor::Track::read(
1515 MediaBuffer **buffer, const ReadOptions *options) {
1518 Mutex::Autolock autoLock(mLock);
1521 bool seeking = false;
1522 bool waitKeyPkt = false;
1523 ReadOptions::SeekMode mode;
1524 int64_t pktTS = AV_NOPTS_VALUE;
1525 int64_t seekTimeUs = AV_NOPTS_VALUE;
1528 status_t status = OK;
1530 if (options && options->getSeekTo(&seekTimeUs, &mode)) {
1531 ALOGV("~~~%s seekTimeUs: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1532 /* add the stream start time */
1533 if (mStream->start_time != AV_NOPTS_VALUE)
1534 seekTimeUs += mStream->start_time * av_q2d(mStream->time_base) * 1000000;
1535 ALOGV("~~~%s seekTimeUs[+startTime]: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1537 if (mExtractor->stream_seek(seekTimeUs, mMediaType) == SEEK)
1542 if (mExtractor->packet_queue_get(mQueue, &pkt, 1) < 0) {
1543 mExtractor->reachedEOS(mMediaType);
1544 return ERROR_END_OF_STREAM;
1548 if (pkt.data != flush_pkt.data) {
1549 av_free_packet(&pkt);
1553 #if WAIT_KEY_PACKET_AFTER_SEEK
1559 if (pkt.data == flush_pkt.data) {
1560 ALOGV("read %s flush pkt", av_get_media_type_string(mMediaType));
1561 av_free_packet(&pkt);
1562 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1564 } else if (pkt.data == NULL && pkt.size == 0) {
1565 ALOGD("read %s eos pkt", av_get_media_type_string(mMediaType));
1566 av_free_packet(&pkt);
1567 mExtractor->reachedEOS(mMediaType);
1568 return ERROR_END_OF_STREAM;
1571 key = pkt.flags & AV_PKT_FLAG_KEY ? 1 : 0;
1574 if (pkt.pts == AV_NOPTS_VALUE)
1579 ALOGV("drop the no key packet");
1580 av_free_packet(&pkt);
1583 ALOGV("~~~~~~ got the key packet");
1588 if (mFirstKeyPktTimestamp == AV_NOPTS_VALUE) {
1589 // update the first key timestamp
1590 mFirstKeyPktTimestamp = pktTS;
1593 if (pktTS < mFirstKeyPktTimestamp) {
1594 ALOGV("drop the packet with the backward timestamp, maybe they are B-frames after I-frame ^_^");
1595 av_free_packet(&pkt);
1599 MediaBuffer *mediaBuffer = new MediaBuffer(pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
1600 mediaBuffer->meta_data()->clear();
1601 mediaBuffer->set_range(0, pkt.size);
1602 #if DISABLE_NAL_TO_ANNEXB
1603 mNal2AnnexB = false;
1605 if (mIsAVC && mNal2AnnexB) {
1606 /* Convert H.264 NAL format to annex b */
1607 if (mNALLengthSize >= 3 && mNALLengthSize <= 4 )
1609 uint8_t *dst = (uint8_t *)mediaBuffer->data();
1611 /* This only works for NAL sizes 3-4 */
1612 size_t len = pkt.size, i;
1613 uint8_t *ptr = pkt.data;
1614 while (len >= mNALLengthSize) {
1615 uint32_t nal_len = 0;
1616 for( i = 0; i < mNALLengthSize; i++ ) {
1617 nal_len = (nal_len << 8) | ptr[i];
1620 dst[mNALLengthSize - 1] = 1;
1621 if (nal_len > INT_MAX || nal_len > (unsigned int)len) {
1622 status = ERROR_MALFORMED;
1625 dst += mNALLengthSize;
1626 ptr += mNALLengthSize;
1627 len -= mNALLengthSize;
1629 memcpy(dst, ptr, nal_len);
1636 status = ERROR_MALFORMED;
1640 ALOGV("status != OK");
1641 mediaBuffer->release();
1643 av_free_packet(&pkt);
1644 return ERROR_MALFORMED;
1647 memcpy(mediaBuffer->data(), pkt.data, pkt.size);
1650 int64_t start_time = mStream->start_time != AV_NOPTS_VALUE ? mStream->start_time : 0;
1651 timeUs = (int64_t)((pktTS - start_time) * av_q2d(mStream->time_base) * 1000000);
1654 ALOGV("read %s pkt, size: %d, key: %d, pts: %lld, dts: %lld, timeUs[-startTime]: %llu us (%.2f secs)",
1655 av_get_media_type_string(mMediaType), pkt.size, key, pkt.pts, pkt.dts, timeUs, timeUs/1E6);
1658 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
1659 mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, key);
1661 *buffer = mediaBuffer;
1663 av_free_packet(&pkt);
1668 ////////////////////////////////////////////////////////////////////////////////
1672 const char *container;
1675 static formatmap FILE_FORMATS[] = {
1676 {"mpeg", MEDIA_MIMETYPE_CONTAINER_MPEG2PS },
1677 {"mpegts", MEDIA_MIMETYPE_CONTAINER_TS },
1678 {"mov,mp4,m4a,3gp,3g2,mj2", MEDIA_MIMETYPE_CONTAINER_MPEG4 },
1679 {"matroska,webm", MEDIA_MIMETYPE_CONTAINER_MATROSKA },
1680 {"asf", MEDIA_MIMETYPE_CONTAINER_ASF },
1681 {"rm", MEDIA_MIMETYPE_CONTAINER_RM },
1682 {"flv", MEDIA_MIMETYPE_CONTAINER_FLV },
1683 {"swf", MEDIA_MIMETYPE_CONTAINER_FLV },
1684 {"avi", MEDIA_MIMETYPE_CONTAINER_AVI },
1685 {"ape", MEDIA_MIMETYPE_CONTAINER_APE },
1686 {"dts", MEDIA_MIMETYPE_CONTAINER_DTS },
1687 {"flac", MEDIA_MIMETYPE_CONTAINER_FLAC },
1688 {"ac3", MEDIA_MIMETYPE_AUDIO_AC3 },
1689 {"wav", MEDIA_MIMETYPE_CONTAINER_WAV },
1692 static void adjustMPEG4Confidence(AVFormatContext *ic, float *confidence)
1694 AVDictionary *tags = NULL;
1695 AVDictionaryEntry *tag = NULL;
1697 tags = ic->metadata;
1699 //NOTE: You can use command to show these tags,
1700 //e.g. "ffprobe -show_format 2012.mov"
1702 tag = av_dict_get(tags, "major_brand", NULL, 0);
1707 ALOGV("major_brand tag is:%s", tag->value);
1709 //when MEDIA_MIMETYPE_CONTAINER_MPEG4
1710 //WTF, MPEG4Extractor.cpp can not extractor mov format
1711 //NOTE: isCompatibleBrand(MPEG4Extractor.cpp)
1712 // Won't promise that the following file types can be played.
1713 // Just give these file types a chance.
1714 // FOURCC('q', 't', ' ', ' '), // Apple's QuickTime
1716 if (!strcmp(tag->value, "qt ")) {
1717 ALOGI("format is mov, confidence should be larger than mpeg4");
1718 //the MEDIA_MIMETYPE_CONTAINER_MPEG4 of confidence is 0.4f
1719 *confidence = 0.41f;
1723 static void adjustVideoCodecConfidence(AVFormatContext *ic,
1724 enum AVCodecID codec_id, float *confidence)
1729 //TODO. if the other stream(e.g. mp3) is supported by stagefright
1730 static void adjustAudioCodecConfidence(AVFormatContext *ic,
1731 enum AVCodecID codec_id, float *confidence)
1735 ALOGI("ffmpeg can demux ac3 only");
1736 *confidence = 0.88f;
1740 //TODO. if the other stream(e.g. mp3) is supported by stagefright
1741 ALOGI("ffmpeg can demux mp1 and mp2 only");
1742 *confidence = 0.88f;
1749 static void adjustCodecConfidence(AVFormatContext *ic, float *confidence)
1751 unsigned int idx = 0;
1752 AVCodecContext *avctx = NULL;
1753 AVMediaType codec_type = AVMEDIA_TYPE_UNKNOWN;
1754 enum AVCodecID codec_id = AV_CODEC_ID_NONE;
1755 bool haveVideo = false;
1756 bool haveAudio = false;
1757 bool haveMP3 = false;
1759 for (idx = 0; idx < ic->nb_streams; idx++) {
1760 avctx = ic->streams[idx]->codec;
1761 codec_type = avctx->codec_type;
1762 codec_id = avctx->codec_id;
1764 if (codec_type == AVMEDIA_TYPE_VIDEO) {
1766 adjustVideoCodecConfidence(ic, codec_id, confidence);
1767 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
1769 adjustAudioCodecConfidence(ic, codec_id, confidence);
1770 if (codec_id == CODEC_ID_MP3)
1775 if (haveVideo && haveMP3) {
1776 *confidence = 0.22f; // larger than MP3Extractor an MP3Extractor
1780 static void adjustConfidenceIfNeeded(const char *mime,
1781 AVFormatContext *ic, float *confidence)
1784 if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4)) {
1785 adjustMPEG4Confidence(ic, confidence);
1791 adjustCodecConfidence(ic, confidence);
1794 static const char *findMatchingContainer(const char *name)
1797 const char *container = NULL;
1799 ALOGI("list the formats suppoted by ffmpeg: ");
1800 ALOGI("========================================");
1801 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1802 ALOGV("format_names[%02d]: %s", i, FILE_FORMATS[i].format);
1804 ALOGI("========================================");
1806 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1807 int len = strlen(FILE_FORMATS[i].format);
1808 if (!av_strncasecmp(name, FILE_FORMATS[i].format, len)) {
1809 container = FILE_FORMATS[i].container;
1817 static const char *SniffFFMPEGCommon(const char *url, float *confidence)
1821 const char *container = NULL;
1822 AVFormatContext *ic = NULL;
1823 AVDictionary **opts = NULL;
1824 size_t orig_nb_streams = 0;
1826 status_t status = initFFmpeg();
1828 ALOGE("could not init ffmpeg");
1832 ic = avformat_alloc_context();
1835 ALOGE("oom for alloc avformat context");
1839 err = avformat_open_input(&ic, url, NULL, NULL);
1841 ALOGE("avformat_open_input faild, url: %s err: %d", url, err);
1845 opts = setup_find_stream_info_opts(ic, codec_opts);
1846 orig_nb_streams = ic->nb_streams;
1847 err = avformat_find_stream_info(ic, opts);
1849 ALOGE("%s: could not find codec parameters", url);
1852 for (i = 0; i < orig_nb_streams; i++) {
1853 av_dict_free(&opts[i]);
1857 av_dump_format(ic, 0, url, 0);
1859 ALOGI("FFmpegExtrator, url: %s, format_name: %s, format_long_name: %s",
1860 url, ic->iformat->name, ic->iformat->long_name);
1862 container = findMatchingContainer(ic->iformat->name);
1865 adjustConfidenceIfNeeded(container, ic, confidence);
1870 avformat_close_input(&ic);
1880 static const char *LegacySniffFFMPEG(const sp<DataSource> &source, float *confidence)
1882 String8 uri = source->getUri();
1887 ALOGI("source url:%s", uri.string());
1889 return SniffFFMPEGCommon(uri.string(), confidence);
1892 static const char *BetterSniffFFMPEG(const sp<DataSource> &source, float *confidence)
1894 char url[128] = {0};
1896 ALOGI("android-source:%p", source.get());
1898 // pass the addr of smart pointer("source")
1899 snprintf(url, sizeof(url), "android-source:%p", source.get());
1901 return SniffFFMPEGCommon(url, confidence);
1905 const sp<DataSource> &source, String8 *mimeType, float *confidence,
1906 sp<AMessage> *meta) {
1907 ALOGV("SniffFFMPEG");
1909 *confidence = 0.08f; // be the last resort, by default
1911 const char *container = BetterSniffFFMPEG(source, confidence);
1913 ALOGW("sniff through BetterSniffFFMPEG failed, try LegacySniffFFMPEG");
1914 container = LegacySniffFFMPEG(source, confidence);
1916 ALOGI("sniff through LegacySniffFFMPEG success");
1919 ALOGI("sniff through BetterSniffFFMPEG success");
1922 if (container == NULL) {
1923 ALOGD("SniffFFMPEG failed to sniff this source");
1927 ALOGD("ffmpeg detected media content as '%s' with confidence %.2f",
1928 container, *confidence);
1930 /* use MPEG4Extractor(not extended extractor) for HTTP source only */
1931 if (!strcasecmp(container, MEDIA_MIMETYPE_CONTAINER_MPEG4)
1932 && (source->flags() & DataSource::kIsCachingDataSource)) {
1933 ALOGI("support container: %s, but it is caching data source, "
1934 "Don't use ffmpegextractor", container);
1938 mimeType->setTo(container);
1940 *meta = new AMessage;
1941 (*meta)->setString("extended-extractor", "extended-extractor");
1942 (*meta)->setString("extended-extractor-subtype", "ffmpegextractor");
1945 char value[PROPERTY_VALUE_MAX];
1946 property_get("sys.media.parser.ffmpeg", value, "0");
1948 ALOGI("[debug] parser use ffmpeg");
1949 *confidence = 0.88f;
1952 if (*confidence == 0.88f) {
1953 (*meta)->setString("extended-extractor-use", "ffmpegextractor");
1959 MediaExtractor *CreateFFmpegExtractor(const sp<DataSource> &source, const char *mime, const sp<AMessage> &meta) {
1960 MediaExtractor *ret = NULL;
1962 if (meta.get() && meta->findString("extended-extractor", ¬use) && (
1963 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4) ||
1964 !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_MPEG) ||
1965 !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AC3) ||
1966 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MOV) ||
1967 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MATROSKA) ||
1968 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_TS) ||
1969 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2PS) ||
1970 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_AVI) ||
1971 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_ASF) ||
1972 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WEBM) ||
1973 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMV) ||
1974 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPG) ||
1975 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLV) ||
1976 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DIVX) ||
1977 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RM) ||
1978 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WAV) ||
1979 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLAC) ||
1980 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_APE) ||
1981 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DTS) ||
1982 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MP2) ||
1983 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RA) ||
1984 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMA))) {
1985 ret = new FFmpegExtractor(source);
1988 ALOGD("%ssupported mime: %s", (ret ? "" : "un"), mime);
1992 } // namespace android
1994 extern "C" void getExtractorPlugin(android::MediaExtractor::Plugin *plugin)
1996 plugin->sniff = android::SniffFFMPEG;
1997 plugin->create = android::CreateFFmpegExtractor;