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 enum AVCodecID codec_id = CODEC_ID_NONE;
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;
392 codec_id = avctx->codec_id;
395 if (codec_id != CODEC_ID_H264
396 && codec_id != CODEC_ID_MPEG4
397 && codec_id != CODEC_ID_MPEG1VIDEO
398 && codec_id != CODEC_ID_MPEG2VIDEO
399 && codec_id != CODEC_ID_AAC) {
403 // is extradata compatible with android?
404 if (codec_id != CODEC_ID_AAC) {
405 int is_compatible = is_extradata_compatible_with_android(avctx);
406 if (!is_compatible) {
407 ALOGI("%s extradata is not compatible with android, should to extract it from bitstream",
408 av_get_media_type_string(avctx->codec_type));
409 *defersToCreateTrack = true;
410 *bsfc = NULL; // H264 don't need bsfc, only AAC?
416 if (codec_id == CODEC_ID_AAC) {
417 name = "aac_adtstoasc";
420 if (avctx->extradata_size <= 0) {
421 ALOGI("No %s extradata found, should to extract it from bitstream",
422 av_get_media_type_string(avctx->codec_type));
423 *defersToCreateTrack = true;
424 //CHECK(name != NULL);
425 if (!*bsfc && name) {
426 *bsfc = av_bitstream_filter_init(name);
428 ALOGE("Cannot open the %s BSF!", name);
429 *defersToCreateTrack = false;
432 ALOGV("open the %s bsf", name);
442 void FFmpegExtractor::printTime(int64_t time)
444 int hours, mins, secs, us;
446 if (time == AV_NOPTS_VALUE)
449 secs = time / AV_TIME_BASE;
450 us = time % AV_TIME_BASE;
455 ALOGI("the time is %02d:%02d:%02d.%02d",
456 hours, mins, secs, (100 * us) / AV_TIME_BASE);
459 bool FFmpegExtractor::is_codec_supported(enum AVCodecID codec_id)
461 bool supported = false;
473 case CODEC_ID_MPEG1VIDEO:
474 case CODEC_ID_MPEG2VIDEO:
481 case CODEC_ID_WMAPRO:
482 case CODEC_ID_WMALOSSLESS:
491 case CODEC_ID_VORBIS:
496 ALOGD("unsuppoted codec(%s), but give it a chance",
497 avcodec_get_name(codec_id));
498 //Won't promise that the following codec id can be supported.
499 //Just give these codecs a chance.
507 int FFmpegExtractor::stream_component_open(int stream_index)
509 AVCodecContext *avctx = NULL;
510 sp<MetaData> meta = NULL;
512 bool supported = false;
514 const void *data = NULL;
518 ALOGI("stream_index: %d", stream_index);
519 if (stream_index < 0 || stream_index >= (int)mFormatCtx->nb_streams)
521 avctx = mFormatCtx->streams[stream_index]->codec;
523 supported = is_codec_supported(avctx->codec_id);
526 ALOGE("unsupport the codec(%s)", avcodec_get_name(avctx->codec_id));
529 ALOGI("support the codec(%s)", avcodec_get_name(avctx->codec_id));
532 ssize_t index = mTracks.indexOfKey(stream_index);
535 ALOGE("this track already exists");
539 mFormatCtx->streams[stream_index]->discard = AVDISCARD_DEFAULT;
542 av_get_codec_tag_string(tagbuf, sizeof(tagbuf), avctx->codec_tag);
543 ALOGV("Tag %s/0x%08x with codec(%s)\n", tagbuf, avctx->codec_tag, avcodec_get_name(avctx->codec_id));
545 switch (avctx->codec_type) {
546 case AVMEDIA_TYPE_VIDEO:
547 if (mVideoStreamIdx == -1)
548 mVideoStreamIdx = stream_index;
549 if (mVideoStream == NULL)
550 mVideoStream = mFormatCtx->streams[stream_index];
551 if (!mVideoQInited) {
552 packet_queue_init(&mVideoQ);
553 mVideoQInited = true;
556 ret = check_extradata(avctx);
559 // disable the stream
560 mVideoStreamIdx = -1;
562 packet_queue_end(&mVideoQ);
563 mVideoQInited = false;
564 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
569 if (avctx->extradata) {
570 ALOGV("video stream extradata:");
571 hexdump(avctx->extradata, avctx->extradata_size);
573 ALOGV("video stream no extradata, but we can ignore it.");
578 switch(avctx->codec_id) {
582 * http://msdn.microsoft.com/en-us/library/dd757808(v=vs.85).aspx
584 //if (avctx->codec_tag && avctx->codec_tag == AV_RL32("avc1")) {
585 if (avctx->extradata[0] == 1 /* configurationVersion */) {
586 // H.264 bitstream without start codes.
590 if (avctx->width == 0 || avctx->height == 0) {
591 int32_t width, height;
592 sp<ABuffer> seqParamSet = new ABuffer(avctx->extradata_size - 8);
593 memcpy(seqParamSet->data(), avctx->extradata + 8, avctx->extradata_size - 8);
594 FindAVCDimensions(seqParamSet, &width, &height);
595 avctx->width = width;
596 avctx->height = height;
599 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
600 meta->setData(kKeyAVCC, kTypeAVCC, avctx->extradata, avctx->extradata_size);
602 // H.264 bitstream with start codes.
606 /* set NULL to release meta as we will new a meta in MakeAVCCodecSpecificData() fxn */
610 sp<ABuffer> buffer = new ABuffer(avctx->extradata_size);
611 memcpy(buffer->data(), avctx->extradata, avctx->extradata_size);
612 meta = MakeAVCCodecSpecificData(buffer);
617 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
619 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
620 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
621 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
622 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
629 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
631 case CODEC_ID_MPEG1VIDEO:
632 case CODEC_ID_MPEG2VIDEO:
633 ALOGV("MPEG%dVIDEO", avctx->codec_id == CODEC_ID_MPEG2VIDEO ? 2 : 1);
634 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
636 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
637 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
638 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
639 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
644 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VC1);
645 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
649 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
650 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_7);
654 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
655 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
656 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_8);
660 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
661 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
662 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_9);
666 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
667 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
668 meta->setInt32(kKeyRVVersion, kTypeRVVer_G2); //http://en.wikipedia.org/wiki/RealVideo
671 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
672 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
673 meta->setInt32(kKeyRVVersion, kTypeRVVer_8); //http://en.wikipedia.org/wiki/RealVideo
677 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
678 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
679 meta->setInt32(kKeyRVVersion, kTypeRVVer_9); //http://en.wikipedia.org/wiki/RealVideo
683 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_FLV1);
684 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
687 ALOGD("unsuppoted video codec(id:%d, name:%s), but give it a chance",
688 avctx->codec_id, avcodec_get_name(avctx->codec_id));
690 meta->setInt32(kKeyCodecId, avctx->codec_id);
691 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_FFMPEG);
692 if (avctx->extradata_size > 0) {
693 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
695 //CHECK(!"Should not be here. Unsupported codec.");
699 ALOGI("width: %d, height: %d, bit_rate: %d",
700 avctx->width, avctx->height, avctx->bit_rate);
702 meta->setInt32(kKeyWidth, avctx->width);
703 meta->setInt32(kKeyHeight, avctx->height);
704 if (avctx->bit_rate > 0)
705 meta->setInt32(kKeyBitRate, avctx->bit_rate);
706 if (mVideoStream->duration != AV_NOPTS_VALUE) {
707 int64_t duration = mVideoStream->duration * av_q2d(mVideoStream->time_base) * 1000000;
709 ALOGV("video startTime: %lld", mVideoStream->start_time);
710 if (mVideoStream->start_time != AV_NOPTS_VALUE) {
711 ALOGV("video startTime:%lld", mVideoStream->start_time);
713 ALOGV("video startTime:N/A");
715 meta->setInt64(kKeyDuration, duration);
717 // default when no stream duration
718 meta->setInt64(kKeyDuration, mFormatCtx->duration);
721 ALOGV("create a video track");
723 stream_index, new Track(this, meta, isAVC, mVideoStream, &mVideoQ));
725 mDefersToCreateVideoTrack = false;
728 case AVMEDIA_TYPE_AUDIO:
729 if (mAudioStreamIdx == -1)
730 mAudioStreamIdx = stream_index;
731 if (mAudioStream == NULL)
732 mAudioStream = mFormatCtx->streams[stream_index];
733 if (!mAudioQInited) {
734 packet_queue_init(&mAudioQ);
735 mAudioQInited = true;
738 ret = check_extradata(avctx);
741 // disable the stream
742 mAudioStreamIdx = -1;
744 packet_queue_end(&mAudioQ);
745 mAudioQInited = false;
746 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
751 if (avctx->extradata) {
752 ALOGV("audio stream extradata(%d):", avctx->extradata_size);
753 hexdump(avctx->extradata, avctx->extradata_size);
755 ALOGV("audio stream no extradata, but we can ignore it.");
758 switch(avctx->codec_id) {
762 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
767 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
769 case CODEC_ID_VORBIS:
772 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_VORBIS);
773 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
778 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
783 const uint8_t *header;
784 uint8_t profile, sf_index, channel;
786 header = avctx->extradata;
787 CHECK(header != NULL);
789 // AudioSpecificInfo follows
790 // oooo offf fccc c000
791 // o - audioObjectType
792 // f - samplingFreqIndex
794 profile = ((header[0] & 0xf8) >> 3) - 1;
795 sf_index = (header[0] & 0x07) << 1 | (header[1] & 0x80) >> 7;
796 sr = get_sample_rate(sf_index);
798 ALOGE("unsupport the sample rate");
801 channel = (header[1] >> 3) & 0xf;
802 ALOGV("profile: %d, sf_index: %d, channel: %d", profile, sf_index, channel);
804 meta = MakeAACCodecSpecificData(profile, sf_index, channel);
805 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
807 case CODEC_ID_WMAV1: // TODO, version?
810 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
811 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
816 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
817 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
818 meta->setInt32(kKeyWMAVersion, kTypeWMA);
820 case CODEC_ID_WMAPRO:
823 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
824 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
825 meta->setInt32(kKeyWMAVersion, kTypeWMAPro);
827 case CODEC_ID_WMALOSSLESS:
828 ALOGV("WMALOSSLESS");
830 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
831 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
832 meta->setInt32(kKeyWMAVersion, kTypeWMALossLess);
834 case CODEC_ID_COOK: // audio codec in RMVB
837 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RA);
838 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
843 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_APE);
844 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
849 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_DTS);
850 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
855 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_FLAC);
856 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
859 ALOGD("unsuppoted audio codec(id:%d, name:%s), but give it a chance",
860 avctx->codec_id, avcodec_get_name(avctx->codec_id));
862 meta->setInt32(kKeyCodecId, avctx->codec_id);
863 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_FFMPEG);
864 if (avctx->extradata_size > 0) {
865 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
867 //CHECK(!"Should not be here. Unsupported codec.");
871 ALOGI("bit_rate: %d, sample_rate: %d, channels: %d, "
872 "bits_per_coded_sample: %d, block_align:%d",
873 avctx->bit_rate, avctx->sample_rate, avctx->channels,
874 avctx->bits_per_coded_sample, avctx->block_align);
876 meta->setInt32(kKeyChannelCount, avctx->channels);
877 meta->setInt32(kKeyBitRate, avctx->bit_rate);
878 meta->setInt32(kKeyBitspersample, avctx->bits_per_coded_sample);
879 meta->setInt32(kKeySampleRate, avctx->sample_rate);
880 meta->setInt32(kKeyBlockAlign, avctx->block_align);
881 meta->setInt32(kKeySampleFormat, avctx->sample_fmt);
882 if (mAudioStream->duration != AV_NOPTS_VALUE) {
883 int64_t duration = mAudioStream->duration * av_q2d(mAudioStream->time_base) * 1000000;
885 if (mAudioStream->start_time != AV_NOPTS_VALUE) {
886 ALOGV("audio startTime:%lld", mAudioStream->start_time);
888 ALOGV("audio startTime:N/A");
890 meta->setInt64(kKeyDuration, duration);
892 // default when no stream duration
893 meta->setInt64(kKeyDuration, mFormatCtx->duration);
896 ALOGV("create a audio track");
898 stream_index, new Track(this, meta, false, mAudioStream, &mAudioQ));
900 mDefersToCreateAudioTrack = false;
903 case AVMEDIA_TYPE_SUBTITLE:
905 CHECK(!"Should not be here. Unsupported media type.");
908 CHECK(!"Should not be here. Unsupported media type.");
914 void FFmpegExtractor::stream_component_close(int stream_index)
916 AVCodecContext *avctx;
918 if (stream_index < 0 || stream_index >= (int)mFormatCtx->nb_streams)
920 avctx = mFormatCtx->streams[stream_index]->codec;
922 switch (avctx->codec_type) {
923 case AVMEDIA_TYPE_VIDEO:
924 ALOGV("packet_queue_abort videoq");
925 packet_queue_abort(&mVideoQ);
926 /* wait until the end */
927 while (!mAbortRequest && !mVideoEOSReceived) {
928 ALOGV("wait for video received");
931 ALOGV("packet_queue_end videoq");
932 packet_queue_end(&mVideoQ);
934 case AVMEDIA_TYPE_AUDIO:
935 ALOGV("packet_queue_abort audioq");
936 packet_queue_abort(&mAudioQ);
937 while (!mAbortRequest && !mAudioEOSReceived) {
938 ALOGV("wait for audio received");
941 ALOGV("packet_queue_end audioq");
942 packet_queue_end(&mAudioQ);
944 case AVMEDIA_TYPE_SUBTITLE:
950 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
951 switch (avctx->codec_type) {
952 case AVMEDIA_TYPE_VIDEO:
954 mVideoStreamIdx = -1;
956 av_bitstream_filter_close(mVideoBsfc);
960 case AVMEDIA_TYPE_AUDIO:
962 mAudioStreamIdx = -1;
964 av_bitstream_filter_close(mAudioBsfc);
968 case AVMEDIA_TYPE_SUBTITLE:
975 void FFmpegExtractor::reachedEOS(enum AVMediaType media_type)
977 Mutex::Autolock autoLock(mLock);
979 if (media_type == AVMEDIA_TYPE_VIDEO) {
980 mVideoEOSReceived = true;
981 } else if (media_type == AVMEDIA_TYPE_AUDIO) {
982 mAudioEOSReceived = true;
986 /* seek in the stream */
987 int FFmpegExtractor::stream_seek(int64_t pos, enum AVMediaType media_type)
989 Mutex::Autolock autoLock(mLock);
991 if (mVideoStreamIdx >= 0 &&
992 mAudioStreamIdx >= 0 &&
993 media_type == AVMEDIA_TYPE_AUDIO &&
994 !mVideoEOSReceived) {
999 if (mAudioStreamIdx >= 0)
1000 packet_queue_flush(&mAudioQ);
1001 if (mVideoStreamIdx >= 0)
1002 packet_queue_flush(&mVideoQ);
1005 mSeekFlags &= ~AVSEEK_FLAG_BYTE;
1012 int FFmpegExtractor::decode_interrupt_cb(void *ctx)
1014 FFmpegExtractor *extrator = static_cast<FFmpegExtractor *>(ctx);
1015 return extrator->mAbortRequest;
1018 void FFmpegExtractor::buildFileName(const sp<DataSource> &source)
1021 ALOGI("android-source:%p", source.get());
1022 // pass the addr of smart pointer("source")
1023 snprintf(mFilename, sizeof(mFilename), "android-source:%p", source.get());
1024 ALOGI("build mFilename: %s", mFilename);
1026 const char *url = mDataSource->getNamURI();
1028 ALOGI("url is error!");
1032 if (!strcmp(url, "-")) {
1033 av_strlcpy(mFilename, "pipe:", strlen("pipe:") + 1);
1035 av_strlcpy(mFilename, url, strlen(url) + 1);
1037 ALOGI("build url: %s, mFilename: %s", url, mFilename);
1041 void FFmpegExtractor::setFFmpegDefaultOpts()
1044 #if DEBUG_DISABLE_VIDEO
1049 #if DEBUG_DISABLE_AUDIO
1055 mSeekByBytes = 0; /* seek by bytes 0=off 1=on -1=auto" */
1056 mDuration = AV_NOPTS_VALUE;
1057 mSeekPos = AV_NOPTS_VALUE;
1061 mVideoStreamIdx = -1;
1062 mAudioStreamIdx = -1;
1063 mVideoStream = NULL;
1064 mAudioStream = NULL;
1065 mVideoQInited = false;
1066 mAudioQInited = false;
1067 mDefersToCreateVideoTrack = false;
1068 mDefersToCreateAudioTrack = false;
1081 int FFmpegExtractor::initStreams()
1085 status_t status = UNKNOWN_ERROR;
1087 int ret = 0, audio_ret = -1, video_ret = -1;
1088 int pkt_in_play_range = 0;
1089 AVDictionaryEntry *t = NULL;
1090 AVDictionary **opts = NULL;
1091 int orig_nb_streams = 0;
1092 int st_index[AVMEDIA_TYPE_NB] = {0};
1093 int wanted_stream[AVMEDIA_TYPE_NB] = {0};
1094 st_index[AVMEDIA_TYPE_AUDIO] = -1;
1095 st_index[AVMEDIA_TYPE_VIDEO] = -1;
1096 wanted_stream[AVMEDIA_TYPE_AUDIO] = -1;
1097 wanted_stream[AVMEDIA_TYPE_VIDEO] = -1;
1098 const char *mime = NULL;
1100 setFFmpegDefaultOpts();
1102 status = initFFmpeg();
1107 mFFmpegInited = true;
1109 av_init_packet(&flush_pkt);
1110 flush_pkt.data = (uint8_t *)"FLUSH";
1113 mFormatCtx = avformat_alloc_context();
1116 ALOGE("oom for alloc avformat context");
1120 mFormatCtx->interrupt_callback.callback = decode_interrupt_cb;
1121 mFormatCtx->interrupt_callback.opaque = this;
1122 ALOGV("mFilename: %s", mFilename);
1123 err = avformat_open_input(&mFormatCtx, mFilename, NULL, &format_opts);
1125 ALOGE("%s: avformat_open_input failed, err:%s", mFilename, av_err2str(err));
1129 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1130 ALOGE("Option %s not found.\n", t->key);
1131 //ret = AVERROR_OPTION_NOT_FOUND;
1137 mFormatCtx->flags |= AVFMT_FLAG_GENPTS;
1139 opts = setup_find_stream_info_opts(mFormatCtx, codec_opts);
1140 orig_nb_streams = mFormatCtx->nb_streams;
1142 err = avformat_find_stream_info(mFormatCtx, opts);
1144 ALOGE("%s: could not find stream info, err:%s", mFilename, av_err2str(err));
1148 for (i = 0; i < orig_nb_streams; i++)
1149 av_dict_free(&opts[i]);
1152 mime = findMatchingContainer(mFormatCtx->iformat->name);
1153 CHECK(mime != NULL);
1154 mMeta->setCString(kKeyMIMEType, mime);
1157 mFormatCtx->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
1159 if (mSeekByBytes < 0)
1160 mSeekByBytes = !!(mFormatCtx->iformat->flags & AVFMT_TS_DISCONT);
1162 for (i = 0; i < (int)mFormatCtx->nb_streams; i++)
1163 mFormatCtx->streams[i]->discard = AVDISCARD_ALL;
1165 st_index[AVMEDIA_TYPE_VIDEO] =
1166 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_VIDEO,
1167 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
1169 st_index[AVMEDIA_TYPE_AUDIO] =
1170 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_AUDIO,
1171 wanted_stream[AVMEDIA_TYPE_AUDIO],
1172 st_index[AVMEDIA_TYPE_VIDEO],
1175 av_dump_format(mFormatCtx, 0, mFilename, 0);
1178 if (mFormatCtx->duration != AV_NOPTS_VALUE &&
1179 mFormatCtx->start_time != AV_NOPTS_VALUE) {
1180 int hours, mins, secs, us;
1182 ALOGV("file startTime: %lld", mFormatCtx->start_time);
1184 mDuration = mFormatCtx->duration;
1186 secs = mDuration / AV_TIME_BASE;
1187 us = mDuration % AV_TIME_BASE;
1192 ALOGI("the duration is %02d:%02d:%02d.%02d",
1193 hours, mins, secs, (100 * us) / AV_TIME_BASE);
1196 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
1197 audio_ret = stream_component_open(st_index[AVMEDIA_TYPE_AUDIO]);
1200 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
1201 video_ret = stream_component_open(st_index[AVMEDIA_TYPE_VIDEO]);
1204 if ( audio_ret < 0 && video_ret < 0) {
1205 ALOGE("%s: could not open codecs\n", mFilename);
1216 void FFmpegExtractor::deInitStreams()
1219 avformat_close_input(&mFormatCtx);
1222 if (mFFmpegInited) {
1227 status_t FFmpegExtractor::startReaderThread() {
1228 ALOGV("Starting reader thread");
1229 Mutex::Autolock autoLock(mLock);
1231 if (mReaderThreadStarted)
1234 pthread_attr_t attr;
1235 pthread_attr_init(&attr);
1236 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
1237 pthread_create(&mReaderThread, &attr, ReaderWrapper, this);
1238 pthread_attr_destroy(&attr);
1239 mReaderThreadStarted = true;
1240 ALOGD("Reader thread started");
1245 void FFmpegExtractor::stopReaderThread() {
1246 ALOGV("Stopping reader thread");
1247 Mutex::Autolock autoLock(mLock);
1249 if (!mReaderThreadStarted) {
1250 ALOGD("Reader thread have been stopped");
1257 pthread_join(mReaderThread, &dummy);
1258 mReaderThreadStarted = false;
1259 ALOGD("Reader thread stopped");
1263 void *FFmpegExtractor::ReaderWrapper(void *me) {
1264 ((FFmpegExtractor *)me)->readerEntry();
1269 void FFmpegExtractor::readerEntry() {
1271 AVPacket pkt1, *pkt = &pkt1;
1273 int pkt_in_play_range = 0;
1275 ALOGV("FFmpegExtractor enter thread(readerEntry)");
1277 mVideoEOSReceived = false;
1278 mAudioEOSReceived = false;
1284 if (mPaused != mLastPaused) {
1285 mLastPaused = mPaused;
1287 mReadPauseReturn = av_read_pause(mFormatCtx);
1289 av_read_play(mFormatCtx);
1291 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
1293 (!strcmp(mFormatCtx->iformat->name, "rtsp") ||
1294 (mFormatCtx->pb && !strncmp(mFilename, "mmsh:", 5)))) {
1295 /* wait 10 ms to avoid trying to get another packet */
1303 ALOGV("readerEntry, mSeekReq: %d", mSeekReq);
1304 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, mSeekPos, INT64_MAX, mSeekFlags);
1306 ALOGE("%s: error while seeking", mFormatCtx->filename);
1308 if (mAudioStreamIdx >= 0) {
1309 packet_queue_flush(&mAudioQ);
1310 packet_queue_put(&mAudioQ, &flush_pkt);
1312 if (mVideoStreamIdx >= 0) {
1313 packet_queue_flush(&mVideoQ);
1314 packet_queue_put(&mVideoQ, &flush_pkt);
1321 /* if the queue are full, no need to read more */
1322 if ( mAudioQ.size + mVideoQ.size > MAX_QUEUE_SIZE
1323 || ( (mAudioQ .size > MIN_AUDIOQ_SIZE || mAudioStreamIdx < 0)
1324 && (mVideoQ .nb_packets > MIN_FRAMES || mVideoStreamIdx < 0))) {
1325 #if DEBUG_READ_ENTRY
1326 ALOGV("readerEntry, is full, fuck");
1334 if (mVideoStreamIdx >= 0) {
1335 av_init_packet(pkt);
1338 pkt->stream_index = mVideoStreamIdx;
1339 packet_queue_put(&mVideoQ, pkt);
1341 if (mAudioStreamIdx >= 0) {
1342 av_init_packet(pkt);
1345 pkt->stream_index = mAudioStreamIdx;
1346 packet_queue_put(&mAudioQ, pkt);
1349 #if DEBUG_READ_ENTRY
1350 ALOGV("readerEntry, eof = 1, mVideoQ.size: %d, mVideoQ.nb_packets: %d, mAudioQ.size: %d, mAudioQ.nb_packets: %d",
1351 mVideoQ.size, mVideoQ.nb_packets, mAudioQ.size, mAudioQ.nb_packets);
1353 if (mAudioQ.size + mVideoQ.size == 0) {
1363 ret = av_read_frame(mFormatCtx, pkt);
1366 if (ret == AVERROR_EOF || url_feof(mFormatCtx->pb))
1367 if (ret == AVERROR_EOF) {
1368 //ALOGV("ret == AVERROR_EOF");
1370 if (url_feof(mFormatCtx->pb)) {
1371 //ALOGV("url_feof(mFormatCtx->pb)");
1376 if (mFormatCtx->pb && mFormatCtx->pb->error) {
1377 ALOGE("mFormatCtx->pb->error: %d", mFormatCtx->pb->error);
1384 if (pkt->stream_index == mVideoStreamIdx) {
1385 if (mDefersToCreateVideoTrack) {
1386 AVCodecContext *avctx = mFormatCtx->streams[mVideoStreamIdx]->codec;
1388 int i = parser_split(avctx, pkt->data, pkt->size);
1389 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
1390 if (avctx->extradata)
1391 av_freep(&avctx->extradata);
1392 avctx->extradata_size= i;
1393 avctx->extradata = (uint8_t *)av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1394 if (!avctx->extradata) {
1395 //return AVERROR(ENOMEM);
1396 ret = AVERROR(ENOMEM);
1399 // sps + pps(there may be sei in it)
1400 memcpy(avctx->extradata, pkt->data, avctx->extradata_size);
1401 memset(avctx->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1403 av_free_packet(pkt);
1407 stream_component_open(mVideoStreamIdx);
1408 if (!mDefersToCreateVideoTrack)
1409 ALOGI("probe packet counter: %d when create video track ok", mProbePkts);
1410 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1411 ALOGI("probe packet counter to max: %d, create video track: %d",
1412 mProbePkts, !mDefersToCreateVideoTrack);
1414 } else if (pkt->stream_index == mAudioStreamIdx) {
1418 AVCodecContext *avctx = mFormatCtx->streams[mAudioStreamIdx]->codec;
1419 if (mAudioBsfc && pkt && pkt->data) {
1420 ret = av_bitstream_filter_filter(mAudioBsfc, avctx, NULL, &outbuf, &outbuf_size,
1421 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
1423 if (ret < 0 ||!outbuf_size) {
1424 av_free_packet(pkt);
1427 if (outbuf && outbuf != pkt->data) {
1428 memmove(pkt->data, outbuf, outbuf_size);
1429 pkt->size = outbuf_size;
1432 if (mDefersToCreateAudioTrack) {
1433 if (avctx->extradata_size <= 0) {
1434 av_free_packet(pkt);
1437 stream_component_open(mAudioStreamIdx);
1438 if (!mDefersToCreateAudioTrack)
1439 ALOGI("probe packet counter: %d when create audio track ok", mProbePkts);
1440 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1441 ALOGI("probe packet counter to max: %d, create audio track: %d",
1442 mProbePkts, !mDefersToCreateAudioTrack);
1446 if (pkt->stream_index == mAudioStreamIdx) {
1447 packet_queue_put(&mAudioQ, pkt);
1448 } else if (pkt->stream_index == mVideoStreamIdx) {
1449 packet_queue_put(&mVideoQ, pkt);
1451 av_free_packet(pkt);
1454 /* wait until the end */
1455 while (!mAbortRequest) {
1461 ALOGI("reader thread goto end...");
1463 /* close each stream */
1464 if (mAudioStreamIdx >= 0)
1465 stream_component_close(mAudioStreamIdx);
1466 if (mVideoStreamIdx >= 0)
1467 stream_component_close(mVideoStreamIdx);
1469 avformat_close_input(&mFormatCtx);
1472 ALOGV("FFmpegExtractor exit thread(readerEntry)");
1475 ////////////////////////////////////////////////////////////////////////////////
1477 FFmpegExtractor::Track::Track(
1478 FFmpegExtractor *extractor, sp<MetaData> meta, bool isAVC,
1479 AVStream *stream, PacketQueue *queue)
1480 : mExtractor(extractor),
1487 /* H.264 Video Types */
1489 mNal2AnnexB = false;
1495 CHECK(meta->findData(kKeyAVCC, &type, &data, &size));
1497 const uint8_t *ptr = (const uint8_t *)data;
1500 CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
1502 // The number of bytes used to encode the length of a NAL unit.
1503 mNALLengthSize = 1 + (ptr[4] & 3);
1505 ALOGV("the stream is AVC, the length of a NAL unit: %d", mNALLengthSize);
1511 mMediaType = mStream->codec->codec_type;
1512 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1515 FFmpegExtractor::Track::~Track() {
1516 ALOGV("FFmpegExtractor::Track::~Track %s",
1517 av_get_media_type_string(mMediaType));
1522 status_t FFmpegExtractor::Track::start(MetaData *params) {
1523 ALOGV("FFmpegExtractor::Track::start %s",
1524 av_get_media_type_string(mMediaType));
1525 Mutex::Autolock autoLock(mLock);
1526 //mExtractor->startReaderThread();
1530 status_t FFmpegExtractor::Track::stop() {
1531 ALOGV("FFmpegExtractor::Track::stop %s",
1532 av_get_media_type_string(mMediaType));
1533 Mutex::Autolock autoLock(mLock);
1534 //mExtractor->stopReaderThread();
1538 sp<MetaData> FFmpegExtractor::Track::getFormat() {
1539 Mutex::Autolock autoLock(mLock);
1544 status_t FFmpegExtractor::Track::read(
1545 MediaBuffer **buffer, const ReadOptions *options) {
1548 Mutex::Autolock autoLock(mLock);
1551 bool seeking = false;
1552 bool waitKeyPkt = false;
1553 ReadOptions::SeekMode mode;
1554 int64_t pktTS = AV_NOPTS_VALUE;
1555 int64_t seekTimeUs = AV_NOPTS_VALUE;
1556 int64_t timeUs = AV_NOPTS_VALUE;
1558 status_t status = OK;
1560 if (options && options->getSeekTo(&seekTimeUs, &mode)) {
1561 ALOGV("~~~%s seekTimeUs: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1562 /* add the stream start time */
1563 if (mStream->start_time != AV_NOPTS_VALUE)
1564 seekTimeUs += mStream->start_time * av_q2d(mStream->time_base) * 1000000;
1565 ALOGV("~~~%s seekTimeUs[+startTime]: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1567 if (mExtractor->stream_seek(seekTimeUs, mMediaType) == SEEK)
1572 if (mExtractor->packet_queue_get(mQueue, &pkt, 1) < 0) {
1573 mExtractor->reachedEOS(mMediaType);
1574 return ERROR_END_OF_STREAM;
1578 if (pkt.data != flush_pkt.data) {
1579 av_free_packet(&pkt);
1583 #if WAIT_KEY_PACKET_AFTER_SEEK
1589 if (pkt.data == flush_pkt.data) {
1590 ALOGV("read %s flush pkt", av_get_media_type_string(mMediaType));
1591 av_free_packet(&pkt);
1592 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1594 } else if (pkt.data == NULL && pkt.size == 0) {
1595 ALOGD("read %s eos pkt", av_get_media_type_string(mMediaType));
1596 av_free_packet(&pkt);
1597 mExtractor->reachedEOS(mMediaType);
1598 return ERROR_END_OF_STREAM;
1601 key = pkt.flags & AV_PKT_FLAG_KEY ? 1 : 0;
1602 pktTS = pkt.pts; //FIXME AV_NOPTS_VALUE??
1605 if (pkt.pts == AV_NOPTS_VALUE)
1608 //FIXME, drop, omxcodec requires a positive timestamp! e.g. vorbis
1609 if (pktTS != AV_NOPTS_VALUE && pktTS < 0) {
1610 ALOGW("drop the packet with negative timestamp(pts:%lld)", pktTS);
1611 av_free_packet(&pkt);
1617 ALOGV("drop the non-key packet");
1618 av_free_packet(&pkt);
1621 ALOGV("~~~~~~ got the key packet");
1626 if (pktTS != AV_NOPTS_VALUE && mFirstKeyPktTimestamp == AV_NOPTS_VALUE) {
1627 // update the first key timestamp
1628 mFirstKeyPktTimestamp = pktTS;
1631 if (pktTS != AV_NOPTS_VALUE && pktTS < mFirstKeyPktTimestamp) {
1632 ALOGV("drop the packet with the backward timestamp, maybe they are B-frames after I-frame ^_^");
1633 av_free_packet(&pkt);
1637 MediaBuffer *mediaBuffer = new MediaBuffer(pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
1638 mediaBuffer->meta_data()->clear();
1639 mediaBuffer->set_range(0, pkt.size);
1640 #if DISABLE_NAL_TO_ANNEXB
1641 mNal2AnnexB = false;
1643 if (mIsAVC && mNal2AnnexB) {
1644 /* Convert H.264 NAL format to annex b */
1645 if (mNALLengthSize >= 3 && mNALLengthSize <= 4 )
1647 uint8_t *dst = (uint8_t *)mediaBuffer->data();
1649 /* This only works for NAL sizes 3-4 */
1650 size_t len = pkt.size, i;
1651 uint8_t *ptr = pkt.data;
1652 while (len >= mNALLengthSize) {
1653 uint32_t nal_len = 0;
1654 for( i = 0; i < mNALLengthSize; i++ ) {
1655 nal_len = (nal_len << 8) | ptr[i];
1658 dst[mNALLengthSize - 1] = 1;
1659 if (nal_len > INT_MAX || nal_len > (unsigned int)len) {
1660 status = ERROR_MALFORMED;
1663 dst += mNALLengthSize;
1664 ptr += mNALLengthSize;
1665 len -= mNALLengthSize;
1667 memcpy(dst, ptr, nal_len);
1674 status = ERROR_MALFORMED;
1678 ALOGV("status != OK");
1679 mediaBuffer->release();
1681 av_free_packet(&pkt);
1682 return ERROR_MALFORMED;
1685 memcpy(mediaBuffer->data(), pkt.data, pkt.size);
1688 int64_t start_time = mStream->start_time != AV_NOPTS_VALUE ? mStream->start_time : 0;
1689 if (pktTS != AV_NOPTS_VALUE)
1690 timeUs = (int64_t)((pktTS - start_time) * av_q2d(mStream->time_base) * 1000000);
1692 timeUs = SF_NOPTS_VALUE; //FIXME AV_NOPTS_VALUE is negative, but stagefright need positive
1695 if (pktTS != AV_NOPTS_VALUE)
1696 ALOGV("read %s pkt, size:%d, key:%d, pts:%lld, dts:%lld, timeUs[-startTime]:%lld us (%.2f secs)",
1697 av_get_media_type_string(mMediaType), pkt.size, key, pkt.pts, pkt.dts, timeUs, timeUs/1E6);
1699 ALOGV("read %s pkt, size:%d, key:%d, pts:N/A, dts:N/A, timeUs[-startTime]:N/A",
1700 av_get_media_type_string(mMediaType), pkt.size, key);
1703 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
1704 mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, key);
1706 *buffer = mediaBuffer;
1708 av_free_packet(&pkt);
1713 ////////////////////////////////////////////////////////////////////////////////
1717 const char *container;
1720 static formatmap FILE_FORMATS[] = {
1721 {"mpeg", MEDIA_MIMETYPE_CONTAINER_MPEG2PS },
1722 {"mpegts", MEDIA_MIMETYPE_CONTAINER_TS },
1723 {"mov,mp4,m4a,3gp,3g2,mj2", MEDIA_MIMETYPE_CONTAINER_MPEG4 },
1724 {"matroska,webm", MEDIA_MIMETYPE_CONTAINER_MATROSKA },
1725 {"asf", MEDIA_MIMETYPE_CONTAINER_ASF },
1726 {"rm", MEDIA_MIMETYPE_CONTAINER_RM },
1727 {"flv", MEDIA_MIMETYPE_CONTAINER_FLV },
1728 {"swf", MEDIA_MIMETYPE_CONTAINER_FLV },
1729 {"avi", MEDIA_MIMETYPE_CONTAINER_AVI },
1730 {"ape", MEDIA_MIMETYPE_CONTAINER_APE },
1731 {"dts", MEDIA_MIMETYPE_CONTAINER_DTS },
1732 {"flac", MEDIA_MIMETYPE_CONTAINER_FLAC },
1733 {"ac3", MEDIA_MIMETYPE_AUDIO_AC3 },
1734 {"wav", MEDIA_MIMETYPE_CONTAINER_WAV },
1735 {"ogg", MEDIA_MIMETYPE_CONTAINER_OGG },
1738 static void adjustMPEG4Confidence(AVFormatContext *ic, float *confidence)
1740 AVDictionary *tags = NULL;
1741 AVDictionaryEntry *tag = NULL;
1743 tags = ic->metadata;
1745 //NOTE: You can use command to show these tags,
1746 //e.g. "ffprobe -show_format 2012.mov"
1748 tag = av_dict_get(tags, "major_brand", NULL, 0);
1753 ALOGV("major_brand tag is:%s", tag->value);
1755 //when MEDIA_MIMETYPE_CONTAINER_MPEG4
1756 //WTF, MPEG4Extractor.cpp can not extractor mov format
1757 //NOTE: isCompatibleBrand(MPEG4Extractor.cpp)
1758 // Won't promise that the following file types can be played.
1759 // Just give these file types a chance.
1760 // FOURCC('q', 't', ' ', ' '), // Apple's QuickTime
1762 if (!strcmp(tag->value, "qt ")) {
1763 ALOGI("format is mov, confidence should be larger than mpeg4");
1764 //the MEDIA_MIMETYPE_CONTAINER_MPEG4 of confidence is 0.4f
1765 *confidence = 0.41f;
1769 static void adjustVideoCodecConfidence(AVFormatContext *ic,
1770 enum AVCodecID codec_id, float *confidence)
1775 //TODO. if the other stream(e.g. mp3) is supported by stagefright
1776 static void adjustAudioCodecConfidence(AVFormatContext *ic,
1777 enum AVCodecID codec_id, float *confidence)
1781 ALOGI("ffmpeg can demux ac3 only");
1782 *confidence = 0.88f;
1786 //TODO. if the other stream(e.g. mp3) is supported by stagefright
1787 ALOGI("ffmpeg can demux mp1 and mp2 only");
1788 *confidence = 0.88f;
1795 static void adjustCodecConfidence(AVFormatContext *ic, float *confidence)
1797 unsigned int idx = 0;
1798 AVCodecContext *avctx = NULL;
1799 AVMediaType codec_type = AVMEDIA_TYPE_UNKNOWN;
1800 enum AVCodecID codec_id = AV_CODEC_ID_NONE;
1801 bool haveVideo = false;
1802 bool haveAudio = false;
1803 bool haveMP3 = false;
1805 for (idx = 0; idx < ic->nb_streams; idx++) {
1806 avctx = ic->streams[idx]->codec;
1807 codec_type = avctx->codec_type;
1808 codec_id = avctx->codec_id;
1810 if (codec_type == AVMEDIA_TYPE_VIDEO) {
1812 adjustVideoCodecConfidence(ic, codec_id, confidence);
1813 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
1815 adjustAudioCodecConfidence(ic, codec_id, confidence);
1816 if (codec_id == CODEC_ID_MP3)
1821 if (haveVideo && haveMP3) {
1822 *confidence = 0.22f; // larger than MP3Extractor an MP3Extractor
1826 static void adjustConfidenceIfNeeded(const char *mime,
1827 AVFormatContext *ic, float *confidence)
1830 if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4)) {
1831 adjustMPEG4Confidence(ic, confidence);
1837 adjustCodecConfidence(ic, confidence);
1840 static const char *findMatchingContainer(const char *name)
1843 const char *container = NULL;
1845 ALOGI("list the formats suppoted by ffmpeg: ");
1846 ALOGI("========================================");
1847 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1848 ALOGV("format_names[%02d]: %s", i, FILE_FORMATS[i].format);
1850 ALOGI("========================================");
1852 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1853 int len = strlen(FILE_FORMATS[i].format);
1854 if (!av_strncasecmp(name, FILE_FORMATS[i].format, len)) {
1855 container = FILE_FORMATS[i].container;
1863 static const char *SniffFFMPEGCommon(const char *url, float *confidence)
1867 const char *container = NULL;
1868 AVFormatContext *ic = NULL;
1869 AVDictionary **opts = NULL;
1870 size_t orig_nb_streams = 0;
1872 status_t status = initFFmpeg();
1874 ALOGE("could not init ffmpeg");
1878 ic = avformat_alloc_context();
1881 ALOGE("oom for alloc avformat context");
1885 err = avformat_open_input(&ic, url, NULL, NULL);
1887 ALOGE("%s: avformat_open_input failed, err:%s", url, av_err2str(err));
1891 opts = setup_find_stream_info_opts(ic, codec_opts);
1892 orig_nb_streams = ic->nb_streams;
1893 err = avformat_find_stream_info(ic, opts);
1895 ALOGE("%s: could not find stream info, err:%s", url, av_err2str(err));
1898 for (i = 0; i < orig_nb_streams; i++) {
1899 av_dict_free(&opts[i]);
1903 av_dump_format(ic, 0, url, 0);
1905 ALOGI("FFmpegExtrator, url: %s, format_name: %s, format_long_name: %s",
1906 url, ic->iformat->name, ic->iformat->long_name);
1908 container = findMatchingContainer(ic->iformat->name);
1911 adjustConfidenceIfNeeded(container, ic, confidence);
1916 avformat_close_input(&ic);
1926 static const char *LegacySniffFFMPEG(const sp<DataSource> &source, float *confidence)
1928 String8 uri = source->getUri();
1933 ALOGI("source url:%s", uri.string());
1935 return SniffFFMPEGCommon(uri.string(), confidence);
1938 static const char *BetterSniffFFMPEG(const sp<DataSource> &source, float *confidence)
1940 char url[128] = {0};
1942 ALOGI("android-source:%p", source.get());
1944 // pass the addr of smart pointer("source")
1945 snprintf(url, sizeof(url), "android-source:%p", source.get());
1947 return SniffFFMPEGCommon(url, confidence);
1951 const sp<DataSource> &source, String8 *mimeType, float *confidence,
1952 sp<AMessage> *meta) {
1953 ALOGV("SniffFFMPEG");
1955 *confidence = 0.08f; // be the last resort, by default
1957 const char *container = BetterSniffFFMPEG(source, confidence);
1959 ALOGW("sniff through BetterSniffFFMPEG failed, try LegacySniffFFMPEG");
1960 container = LegacySniffFFMPEG(source, confidence);
1962 ALOGI("sniff through LegacySniffFFMPEG success");
1965 ALOGI("sniff through BetterSniffFFMPEG success");
1968 if (container == NULL) {
1969 ALOGD("SniffFFMPEG failed to sniff this source");
1973 ALOGD("ffmpeg detected media content as '%s' with confidence %.2f",
1974 container, *confidence);
1976 /* use MPEG4Extractor(not extended extractor) for HTTP source only */
1977 if (!strcasecmp(container, MEDIA_MIMETYPE_CONTAINER_MPEG4)
1978 && (source->flags() & DataSource::kIsCachingDataSource)) {
1979 ALOGI("support container: %s, but it is caching data source, "
1980 "Don't use ffmpegextractor", container);
1984 mimeType->setTo(container);
1986 *meta = new AMessage;
1987 (*meta)->setString("extended-extractor", "extended-extractor");
1988 (*meta)->setString("extended-extractor-subtype", "ffmpegextractor");
1991 char value[PROPERTY_VALUE_MAX];
1992 property_get("sys.media.parser.ffmpeg", value, "0");
1994 ALOGI("[debug] parser use ffmpeg");
1995 *confidence = 0.88f;
1998 if (*confidence > 0.08f) {
1999 (*meta)->setString("extended-extractor-use", "ffmpegextractor");
2005 MediaExtractor *CreateFFmpegExtractor(const sp<DataSource> &source, const char *mime, const sp<AMessage> &meta) {
2006 MediaExtractor *ret = NULL;
2008 if (meta.get() && meta->findString("extended-extractor", ¬use) && (
2009 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4) ||
2010 !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_MPEG) ||
2011 !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AC3) ||
2012 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MOV) ||
2013 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MATROSKA) ||
2014 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_TS) ||
2015 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2PS) ||
2016 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_AVI) ||
2017 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_ASF) ||
2018 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WEBM) ||
2019 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMV) ||
2020 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPG) ||
2021 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLV) ||
2022 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DIVX) ||
2023 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RM) ||
2024 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WAV) ||
2025 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLAC) ||
2026 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_APE) ||
2027 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DTS) ||
2028 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MP2) ||
2029 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RA) ||
2030 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_OGG) ||
2031 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMA))) {
2032 ret = new FFmpegExtractor(source);
2035 ALOGD("%ssupported mime: %s", (ret ? "" : "un"), mime);
2039 } // namespace android
2041 extern "C" void getExtractorPlugin(android::MediaExtractor::Plugin *plugin)
2043 plugin->sniff = android::SniffFFMPEG;
2044 plugin->create = android::CreateFFmpegExtractor;