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;
474 case CODEC_ID_MPEG1VIDEO:
475 case CODEC_ID_MPEG2VIDEO:
482 case CODEC_ID_WMAPRO:
483 case CODEC_ID_WMALOSSLESS:
495 ALOGD("unsuppoted codec(id:0x%0x), but give it a chance", codec_id);
496 //Won't promise that the following codec id can be supported.
497 //Just give these codecs a chance.
505 int FFmpegExtractor::stream_component_open(int stream_index)
507 AVCodecContext *avctx = NULL;
508 sp<MetaData> meta = NULL;
510 bool supported = false;
512 const void *data = NULL;
516 ALOGI("stream_index: %d", stream_index);
517 if (stream_index < 0 || stream_index >= (int)mFormatCtx->nb_streams)
519 avctx = mFormatCtx->streams[stream_index]->codec;
521 supported = is_codec_supported(avctx->codec_id);
524 ALOGE("unsupport the codec, id: 0x%0x", avctx->codec_id);
527 ALOGV("support the codec");
530 ssize_t index = mTracks.indexOfKey(stream_index);
533 ALOGE("this track already exists");
537 mFormatCtx->streams[stream_index]->discard = AVDISCARD_DEFAULT;
540 av_get_codec_tag_string(tagbuf, sizeof(tagbuf), avctx->codec_tag);
541 ALOGV("Tag %s/0x%08x with codec id '%d'\n", tagbuf, avctx->codec_tag, avctx->codec_id);
543 switch (avctx->codec_type) {
544 case AVMEDIA_TYPE_VIDEO:
545 if (mVideoStreamIdx == -1)
546 mVideoStreamIdx = stream_index;
547 if (mVideoStream == NULL)
548 mVideoStream = mFormatCtx->streams[stream_index];
549 if (!mVideoQInited) {
550 packet_queue_init(&mVideoQ);
551 mVideoQInited = true;
554 ret = check_extradata(avctx);
557 // disable the stream
558 mVideoStreamIdx = -1;
560 packet_queue_end(&mVideoQ);
561 mVideoQInited = false;
562 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
567 if (avctx->extradata) {
568 ALOGV("video stream extradata:");
569 hexdump(avctx->extradata, avctx->extradata_size);
571 ALOGV("video stream no extradata, but we can ignore it.");
576 switch(avctx->codec_id) {
580 * http://msdn.microsoft.com/en-us/library/dd757808(v=vs.85).aspx
582 //if (avctx->codec_tag && avctx->codec_tag == AV_RL32("avc1")) {
583 if (avctx->extradata[0] == 1 /* configurationVersion */) {
584 // H.264 bitstream without start codes.
588 if (avctx->width == 0 || avctx->height == 0) {
589 int32_t width, height;
590 sp<ABuffer> seqParamSet = new ABuffer(avctx->extradata_size - 8);
591 memcpy(seqParamSet->data(), avctx->extradata + 8, avctx->extradata_size - 8);
592 FindAVCDimensions(seqParamSet, &width, &height);
593 avctx->width = width;
594 avctx->height = height;
597 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
598 meta->setData(kKeyAVCC, kTypeAVCC, avctx->extradata, avctx->extradata_size);
600 // H.264 bitstream with start codes.
604 /* set NULL to release meta as we will new a meta in MakeAVCCodecSpecificData() fxn */
608 sp<ABuffer> buffer = new ABuffer(avctx->extradata_size);
609 memcpy(buffer->data(), avctx->extradata, avctx->extradata_size);
610 meta = MakeAVCCodecSpecificData(buffer);
615 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
617 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
618 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
619 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
620 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
627 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
629 case CODEC_ID_MPEG1VIDEO:
630 case CODEC_ID_MPEG2VIDEO:
631 ALOGV("MPEG%dVIDEO", avctx->codec_id == CODEC_ID_MPEG2VIDEO ? 2 : 1);
632 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
634 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
635 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
636 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
637 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
642 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VC1);
643 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
647 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
648 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_7);
652 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
653 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
654 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_8);
658 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
659 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
660 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_9);
664 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
665 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
666 meta->setInt32(kKeyRVVersion, kTypeRVVer_G2); //http://en.wikipedia.org/wiki/RealVideo
669 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
670 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
671 meta->setInt32(kKeyRVVersion, kTypeRVVer_8); //http://en.wikipedia.org/wiki/RealVideo
675 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
676 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
677 meta->setInt32(kKeyRVVersion, kTypeRVVer_9); //http://en.wikipedia.org/wiki/RealVideo
681 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_FLV1);
682 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
685 ALOGD("unsuppoted video codec(id:%d, name:%s), but give it a chance",
686 avctx->codec_id, avcodec_get_name(avctx->codec_id));
688 meta->setInt32(kKeyCodecId, avctx->codec_id);
689 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_FFMPEG);
690 if (avctx->extradata_size > 0) {
691 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
693 //CHECK(!"Should not be here. Unsupported codec.");
697 ALOGI("width: %d, height: %d, bit_rate: %d",
698 avctx->width, avctx->height, avctx->bit_rate);
700 meta->setInt32(kKeyWidth, avctx->width);
701 meta->setInt32(kKeyHeight, avctx->height);
702 if (avctx->bit_rate > 0)
703 meta->setInt32(kKeyBitRate, avctx->bit_rate);
704 if (mVideoStream->duration != AV_NOPTS_VALUE) {
705 int64_t duration = mVideoStream->duration * av_q2d(mVideoStream->time_base) * 1000000;
707 ALOGV("video startTime: %lld", mVideoStream->start_time);
708 if (mVideoStream->start_time != AV_NOPTS_VALUE) {
709 ALOGV("video startTime:%lld", mVideoStream->start_time);
711 ALOGV("video startTime:N/A");
713 meta->setInt64(kKeyDuration, duration);
715 // default when no stream duration
716 meta->setInt64(kKeyDuration, mFormatCtx->duration);
719 ALOGV("create a video track");
721 stream_index, new Track(this, meta, isAVC, mVideoStream, &mVideoQ));
723 mDefersToCreateVideoTrack = false;
726 case AVMEDIA_TYPE_AUDIO:
727 if (mAudioStreamIdx == -1)
728 mAudioStreamIdx = stream_index;
729 if (mAudioStream == NULL)
730 mAudioStream = mFormatCtx->streams[stream_index];
731 if (!mAudioQInited) {
732 packet_queue_init(&mAudioQ);
733 mAudioQInited = true;
736 ret = check_extradata(avctx);
739 // disable the stream
740 mAudioStreamIdx = -1;
742 packet_queue_end(&mAudioQ);
743 mAudioQInited = false;
744 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
749 if (avctx->extradata) {
750 ALOGV("audio stream extradata:");
751 hexdump(avctx->extradata, avctx->extradata_size);
753 ALOGV("audio stream no extradata, but we can ignore it.");
756 switch(avctx->codec_id) {
760 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
765 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
770 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
775 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
780 const uint8_t *header;
781 uint8_t profile, sf_index, channel;
783 header = avctx->extradata;
784 CHECK(header != NULL);
786 // AudioSpecificInfo follows
787 // oooo offf fccc c000
788 // o - audioObjectType
789 // f - samplingFreqIndex
791 profile = ((header[0] & 0xf8) >> 3) - 1;
792 sf_index = (header[0] & 0x07) << 1 | (header[1] & 0x80) >> 7;
793 sr = get_sample_rate(sf_index);
795 ALOGE("unsupport the sample rate");
798 channel = (header[1] >> 3) & 0xf;
799 ALOGV("profile: %d, sf_index: %d, channel: %d", profile, sf_index, channel);
801 meta = MakeAACCodecSpecificData(profile, sf_index, channel);
802 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
804 case CODEC_ID_WMAV1: // TODO, version?
807 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
808 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
813 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
814 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
815 meta->setInt32(kKeyWMAVersion, kTypeWMA);
817 case CODEC_ID_WMAPRO:
820 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
821 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
822 meta->setInt32(kKeyWMAVersion, kTypeWMAPro);
824 case CODEC_ID_WMALOSSLESS:
825 ALOGV("WMALOSSLESS");
827 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
828 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
829 meta->setInt32(kKeyWMAVersion, kTypeWMALossLess);
831 case CODEC_ID_COOK: // audio codec in RMVB
834 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RA);
835 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
840 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_APE);
841 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
846 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_DTS);
847 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
852 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_FLAC);
853 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
856 ALOGD("unsuppoted audio codec(id:%d, name:%s), but give it a chance",
857 avctx->codec_id, avcodec_get_name(avctx->codec_id));
859 meta->setInt32(kKeyCodecId, avctx->codec_id);
860 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_FFMPEG);
861 if (avctx->extradata_size > 0) {
862 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
864 //CHECK(!"Should not be here. Unsupported codec.");
868 ALOGI("bit_rate: %d, sample_rate: %d, channels: %d, "
869 "bits_per_coded_sample: %d, block_align:%d",
870 avctx->bit_rate, avctx->sample_rate, avctx->channels,
871 avctx->bits_per_coded_sample, avctx->block_align);
873 meta->setInt32(kKeyChannelCount, avctx->channels);
874 meta->setInt32(kKeyBitRate, avctx->bit_rate);
875 meta->setInt32(kKeyBitspersample, avctx->bits_per_coded_sample);
876 meta->setInt32(kKeySampleRate, avctx->sample_rate);
877 meta->setInt32(kKeyBlockAlign, avctx->block_align);
878 meta->setInt32(kKeySampleFormat, avctx->sample_fmt);
879 if (mAudioStream->duration != AV_NOPTS_VALUE) {
880 int64_t duration = mAudioStream->duration * av_q2d(mAudioStream->time_base) * 1000000;
882 if (mAudioStream->start_time != AV_NOPTS_VALUE) {
883 ALOGV("audio startTime:%lld", mAudioStream->start_time);
885 ALOGV("audio startTime:N/A");
887 meta->setInt64(kKeyDuration, duration);
889 // default when no stream duration
890 meta->setInt64(kKeyDuration, mFormatCtx->duration);
893 ALOGV("create a audio track");
895 stream_index, new Track(this, meta, false, mAudioStream, &mAudioQ));
897 mDefersToCreateAudioTrack = false;
900 case AVMEDIA_TYPE_SUBTITLE:
902 CHECK(!"Should not be here. Unsupported media type.");
905 CHECK(!"Should not be here. Unsupported media type.");
911 void FFmpegExtractor::stream_component_close(int stream_index)
913 AVCodecContext *avctx;
915 if (stream_index < 0 || stream_index >= (int)mFormatCtx->nb_streams)
917 avctx = mFormatCtx->streams[stream_index]->codec;
919 switch (avctx->codec_type) {
920 case AVMEDIA_TYPE_VIDEO:
921 ALOGV("packet_queue_abort videoq");
922 packet_queue_abort(&mVideoQ);
923 /* wait until the end */
924 while (!mAbortRequest && !mVideoEOSReceived) {
925 ALOGV("wait for video received");
928 ALOGV("packet_queue_end videoq");
929 packet_queue_end(&mVideoQ);
931 case AVMEDIA_TYPE_AUDIO:
932 ALOGV("packet_queue_abort audioq");
933 packet_queue_abort(&mAudioQ);
934 while (!mAbortRequest && !mAudioEOSReceived) {
935 ALOGV("wait for audio received");
938 ALOGV("packet_queue_end audioq");
939 packet_queue_end(&mAudioQ);
941 case AVMEDIA_TYPE_SUBTITLE:
947 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
948 switch (avctx->codec_type) {
949 case AVMEDIA_TYPE_VIDEO:
951 mVideoStreamIdx = -1;
953 av_bitstream_filter_close(mVideoBsfc);
957 case AVMEDIA_TYPE_AUDIO:
959 mAudioStreamIdx = -1;
961 av_bitstream_filter_close(mAudioBsfc);
965 case AVMEDIA_TYPE_SUBTITLE:
972 void FFmpegExtractor::reachedEOS(enum AVMediaType media_type)
974 Mutex::Autolock autoLock(mLock);
976 if (media_type == AVMEDIA_TYPE_VIDEO) {
977 mVideoEOSReceived = true;
978 } else if (media_type == AVMEDIA_TYPE_AUDIO) {
979 mAudioEOSReceived = true;
983 /* seek in the stream */
984 int FFmpegExtractor::stream_seek(int64_t pos, enum AVMediaType media_type)
986 Mutex::Autolock autoLock(mLock);
988 if (mVideoStreamIdx >= 0 &&
989 mAudioStreamIdx >= 0 &&
990 media_type == AVMEDIA_TYPE_AUDIO &&
991 !mVideoEOSReceived) {
996 if (mAudioStreamIdx >= 0)
997 packet_queue_flush(&mAudioQ);
998 if (mVideoStreamIdx >= 0)
999 packet_queue_flush(&mVideoQ);
1002 mSeekFlags &= ~AVSEEK_FLAG_BYTE;
1009 int FFmpegExtractor::decode_interrupt_cb(void *ctx)
1011 FFmpegExtractor *extrator = static_cast<FFmpegExtractor *>(ctx);
1012 return extrator->mAbortRequest;
1015 void FFmpegExtractor::buildFileName(const sp<DataSource> &source)
1018 ALOGI("android-source:%p", source.get());
1019 // pass the addr of smart pointer("source")
1020 snprintf(mFilename, sizeof(mFilename), "android-source:%p", source.get());
1021 ALOGI("build mFilename: %s", mFilename);
1023 const char *url = mDataSource->getNamURI();
1025 ALOGI("url is error!");
1029 if (!strcmp(url, "-")) {
1030 av_strlcpy(mFilename, "pipe:", strlen("pipe:") + 1);
1032 av_strlcpy(mFilename, url, strlen(url) + 1);
1034 ALOGI("build url: %s, mFilename: %s", url, mFilename);
1038 void FFmpegExtractor::setFFmpegDefaultOpts()
1041 #if DEBUG_DISABLE_VIDEO
1046 #if DEBUG_DISABLE_AUDIO
1052 mSeekByBytes = 0; /* seek by bytes 0=off 1=on -1=auto" */
1053 mDuration = AV_NOPTS_VALUE;
1054 mSeekPos = AV_NOPTS_VALUE;
1058 mVideoStreamIdx = -1;
1059 mAudioStreamIdx = -1;
1060 mVideoStream = NULL;
1061 mAudioStream = NULL;
1062 mVideoQInited = false;
1063 mAudioQInited = false;
1064 mDefersToCreateVideoTrack = false;
1065 mDefersToCreateAudioTrack = false;
1078 int FFmpegExtractor::initStreams()
1082 status_t status = UNKNOWN_ERROR;
1084 int ret = 0, audio_ret = -1, video_ret = -1;
1085 int pkt_in_play_range = 0;
1086 AVDictionaryEntry *t = NULL;
1087 AVDictionary **opts = NULL;
1088 int orig_nb_streams = 0;
1089 int st_index[AVMEDIA_TYPE_NB] = {0};
1090 int wanted_stream[AVMEDIA_TYPE_NB] = {0};
1091 st_index[AVMEDIA_TYPE_AUDIO] = -1;
1092 st_index[AVMEDIA_TYPE_VIDEO] = -1;
1093 wanted_stream[AVMEDIA_TYPE_AUDIO] = -1;
1094 wanted_stream[AVMEDIA_TYPE_VIDEO] = -1;
1095 const char *mime = NULL;
1097 setFFmpegDefaultOpts();
1099 status = initFFmpeg();
1104 mFFmpegInited = true;
1106 av_init_packet(&flush_pkt);
1107 flush_pkt.data = (uint8_t *)"FLUSH";
1110 mFormatCtx = avformat_alloc_context();
1113 ALOGE("oom for alloc avformat context");
1117 mFormatCtx->interrupt_callback.callback = decode_interrupt_cb;
1118 mFormatCtx->interrupt_callback.opaque = this;
1119 ALOGV("mFilename: %s", mFilename);
1120 err = avformat_open_input(&mFormatCtx, mFilename, NULL, &format_opts);
1122 ALOGE("%s: avformat_open_input failed, err:%s", mFilename, av_err2str(err));
1126 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1127 ALOGE("Option %s not found.\n", t->key);
1128 //ret = AVERROR_OPTION_NOT_FOUND;
1134 mFormatCtx->flags |= AVFMT_FLAG_GENPTS;
1136 opts = setup_find_stream_info_opts(mFormatCtx, codec_opts);
1137 orig_nb_streams = mFormatCtx->nb_streams;
1139 err = avformat_find_stream_info(mFormatCtx, opts);
1141 ALOGE("%s: could not find stream info, err:%s", mFilename, av_err2str(err));
1145 for (i = 0; i < orig_nb_streams; i++)
1146 av_dict_free(&opts[i]);
1149 mime = findMatchingContainer(mFormatCtx->iformat->name);
1150 CHECK(mime != NULL);
1151 mMeta->setCString(kKeyMIMEType, mime);
1154 mFormatCtx->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
1156 if (mSeekByBytes < 0)
1157 mSeekByBytes = !!(mFormatCtx->iformat->flags & AVFMT_TS_DISCONT);
1159 for (i = 0; i < (int)mFormatCtx->nb_streams; i++)
1160 mFormatCtx->streams[i]->discard = AVDISCARD_ALL;
1162 st_index[AVMEDIA_TYPE_VIDEO] =
1163 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_VIDEO,
1164 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
1166 st_index[AVMEDIA_TYPE_AUDIO] =
1167 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_AUDIO,
1168 wanted_stream[AVMEDIA_TYPE_AUDIO],
1169 st_index[AVMEDIA_TYPE_VIDEO],
1172 av_dump_format(mFormatCtx, 0, mFilename, 0);
1175 if (mFormatCtx->duration != AV_NOPTS_VALUE &&
1176 mFormatCtx->start_time != AV_NOPTS_VALUE) {
1177 int hours, mins, secs, us;
1179 ALOGV("file startTime: %lld", mFormatCtx->start_time);
1181 mDuration = mFormatCtx->duration;
1183 secs = mDuration / AV_TIME_BASE;
1184 us = mDuration % AV_TIME_BASE;
1189 ALOGI("the duration is %02d:%02d:%02d.%02d",
1190 hours, mins, secs, (100 * us) / AV_TIME_BASE);
1193 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
1194 audio_ret = stream_component_open(st_index[AVMEDIA_TYPE_AUDIO]);
1197 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
1198 video_ret = stream_component_open(st_index[AVMEDIA_TYPE_VIDEO]);
1201 if ( audio_ret < 0 && video_ret < 0) {
1202 ALOGE("%s: could not open codecs\n", mFilename);
1213 void FFmpegExtractor::deInitStreams()
1216 avformat_close_input(&mFormatCtx);
1219 if (mFFmpegInited) {
1224 status_t FFmpegExtractor::startReaderThread() {
1225 ALOGV("Starting reader thread");
1226 Mutex::Autolock autoLock(mLock);
1228 if (mReaderThreadStarted)
1231 pthread_attr_t attr;
1232 pthread_attr_init(&attr);
1233 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
1234 pthread_create(&mReaderThread, &attr, ReaderWrapper, this);
1235 pthread_attr_destroy(&attr);
1236 mReaderThreadStarted = true;
1237 ALOGD("Reader thread started");
1242 void FFmpegExtractor::stopReaderThread() {
1243 ALOGV("Stopping reader thread");
1244 Mutex::Autolock autoLock(mLock);
1246 if (!mReaderThreadStarted) {
1247 ALOGD("Reader thread have been stopped");
1254 pthread_join(mReaderThread, &dummy);
1255 mReaderThreadStarted = false;
1256 ALOGD("Reader thread stopped");
1260 void *FFmpegExtractor::ReaderWrapper(void *me) {
1261 ((FFmpegExtractor *)me)->readerEntry();
1266 void FFmpegExtractor::readerEntry() {
1268 AVPacket pkt1, *pkt = &pkt1;
1270 int pkt_in_play_range = 0;
1272 ALOGV("FFmpegExtractor enter thread(readerEntry)");
1274 mVideoEOSReceived = false;
1275 mAudioEOSReceived = false;
1281 if (mPaused != mLastPaused) {
1282 mLastPaused = mPaused;
1284 mReadPauseReturn = av_read_pause(mFormatCtx);
1286 av_read_play(mFormatCtx);
1288 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
1290 (!strcmp(mFormatCtx->iformat->name, "rtsp") ||
1291 (mFormatCtx->pb && !strncmp(mFilename, "mmsh:", 5)))) {
1292 /* wait 10 ms to avoid trying to get another packet */
1300 ALOGV("readerEntry, mSeekReq: %d", mSeekReq);
1301 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, mSeekPos, INT64_MAX, mSeekFlags);
1303 ALOGE("%s: error while seeking", mFormatCtx->filename);
1305 if (mAudioStreamIdx >= 0) {
1306 packet_queue_flush(&mAudioQ);
1307 packet_queue_put(&mAudioQ, &flush_pkt);
1309 if (mVideoStreamIdx >= 0) {
1310 packet_queue_flush(&mVideoQ);
1311 packet_queue_put(&mVideoQ, &flush_pkt);
1318 /* if the queue are full, no need to read more */
1319 if ( mAudioQ.size + mVideoQ.size > MAX_QUEUE_SIZE
1320 || ( (mAudioQ .size > MIN_AUDIOQ_SIZE || mAudioStreamIdx < 0)
1321 && (mVideoQ .nb_packets > MIN_FRAMES || mVideoStreamIdx < 0))) {
1322 #if DEBUG_READ_ENTRY
1323 ALOGV("readerEntry, is full, fuck");
1331 if (mVideoStreamIdx >= 0) {
1332 av_init_packet(pkt);
1335 pkt->stream_index = mVideoStreamIdx;
1336 packet_queue_put(&mVideoQ, pkt);
1338 if (mAudioStreamIdx >= 0) {
1339 av_init_packet(pkt);
1342 pkt->stream_index = mAudioStreamIdx;
1343 packet_queue_put(&mAudioQ, pkt);
1346 #if DEBUG_READ_ENTRY
1347 ALOGV("readerEntry, eof = 1, mVideoQ.size: %d, mVideoQ.nb_packets: %d, mAudioQ.size: %d, mAudioQ.nb_packets: %d",
1348 mVideoQ.size, mVideoQ.nb_packets, mAudioQ.size, mAudioQ.nb_packets);
1350 if (mAudioQ.size + mVideoQ.size == 0) {
1360 ret = av_read_frame(mFormatCtx, pkt);
1363 if (ret == AVERROR_EOF || url_feof(mFormatCtx->pb))
1364 if (ret == AVERROR_EOF) {
1365 //ALOGV("ret == AVERROR_EOF");
1367 if (url_feof(mFormatCtx->pb)) {
1368 //ALOGV("url_feof(mFormatCtx->pb)");
1373 if (mFormatCtx->pb && mFormatCtx->pb->error) {
1374 ALOGE("mFormatCtx->pb->error: %d", mFormatCtx->pb->error);
1381 if (pkt->stream_index == mVideoStreamIdx) {
1382 if (mDefersToCreateVideoTrack) {
1383 AVCodecContext *avctx = mFormatCtx->streams[mVideoStreamIdx]->codec;
1385 int i = parser_split(avctx, pkt->data, pkt->size);
1386 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
1387 if (avctx->extradata)
1388 av_freep(&avctx->extradata);
1389 avctx->extradata_size= i;
1390 avctx->extradata = (uint8_t *)av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1391 if (!avctx->extradata) {
1392 //return AVERROR(ENOMEM);
1393 ret = AVERROR(ENOMEM);
1396 // sps + pps(there may be sei in it)
1397 memcpy(avctx->extradata, pkt->data, avctx->extradata_size);
1398 memset(avctx->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1400 av_free_packet(pkt);
1404 stream_component_open(mVideoStreamIdx);
1405 if (!mDefersToCreateVideoTrack)
1406 ALOGI("probe packet counter: %d when create video track ok", mProbePkts);
1407 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1408 ALOGI("probe packet counter to max: %d, create video track: %d",
1409 mProbePkts, !mDefersToCreateVideoTrack);
1411 } else if (pkt->stream_index == mAudioStreamIdx) {
1415 AVCodecContext *avctx = mFormatCtx->streams[mAudioStreamIdx]->codec;
1416 if (mAudioBsfc && pkt && pkt->data) {
1417 ret = av_bitstream_filter_filter(mAudioBsfc, avctx, NULL, &outbuf, &outbuf_size,
1418 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
1420 if (ret < 0 ||!outbuf_size) {
1421 av_free_packet(pkt);
1424 if (outbuf && outbuf != pkt->data) {
1425 memmove(pkt->data, outbuf, outbuf_size);
1426 pkt->size = outbuf_size;
1429 if (mDefersToCreateAudioTrack) {
1430 if (avctx->extradata_size <= 0) {
1431 av_free_packet(pkt);
1434 stream_component_open(mAudioStreamIdx);
1435 if (!mDefersToCreateAudioTrack)
1436 ALOGI("probe packet counter: %d when create audio track ok", mProbePkts);
1437 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1438 ALOGI("probe packet counter to max: %d, create audio track: %d",
1439 mProbePkts, !mDefersToCreateAudioTrack);
1443 if (pkt->stream_index == mAudioStreamIdx) {
1444 packet_queue_put(&mAudioQ, pkt);
1445 } else if (pkt->stream_index == mVideoStreamIdx) {
1446 packet_queue_put(&mVideoQ, pkt);
1448 av_free_packet(pkt);
1451 /* wait until the end */
1452 while (!mAbortRequest) {
1458 ALOGI("reader thread goto end...");
1460 /* close each stream */
1461 if (mAudioStreamIdx >= 0)
1462 stream_component_close(mAudioStreamIdx);
1463 if (mVideoStreamIdx >= 0)
1464 stream_component_close(mVideoStreamIdx);
1466 avformat_close_input(&mFormatCtx);
1469 ALOGV("FFmpegExtractor exit thread(readerEntry)");
1472 ////////////////////////////////////////////////////////////////////////////////
1474 FFmpegExtractor::Track::Track(
1475 FFmpegExtractor *extractor, sp<MetaData> meta, bool isAVC,
1476 AVStream *stream, PacketQueue *queue)
1477 : mExtractor(extractor),
1484 /* H.264 Video Types */
1486 mNal2AnnexB = false;
1492 CHECK(meta->findData(kKeyAVCC, &type, &data, &size));
1494 const uint8_t *ptr = (const uint8_t *)data;
1497 CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
1499 // The number of bytes used to encode the length of a NAL unit.
1500 mNALLengthSize = 1 + (ptr[4] & 3);
1502 ALOGV("the stream is AVC, the length of a NAL unit: %d", mNALLengthSize);
1508 mMediaType = mStream->codec->codec_type;
1509 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1512 FFmpegExtractor::Track::~Track() {
1513 ALOGV("FFmpegExtractor::Track::~Track %s",
1514 av_get_media_type_string(mMediaType));
1519 status_t FFmpegExtractor::Track::start(MetaData *params) {
1520 ALOGV("FFmpegExtractor::Track::start %s",
1521 av_get_media_type_string(mMediaType));
1522 Mutex::Autolock autoLock(mLock);
1523 //mExtractor->startReaderThread();
1527 status_t FFmpegExtractor::Track::stop() {
1528 ALOGV("FFmpegExtractor::Track::stop %s",
1529 av_get_media_type_string(mMediaType));
1530 Mutex::Autolock autoLock(mLock);
1531 //mExtractor->stopReaderThread();
1535 sp<MetaData> FFmpegExtractor::Track::getFormat() {
1536 Mutex::Autolock autoLock(mLock);
1541 status_t FFmpegExtractor::Track::read(
1542 MediaBuffer **buffer, const ReadOptions *options) {
1545 Mutex::Autolock autoLock(mLock);
1548 bool seeking = false;
1549 bool waitKeyPkt = false;
1550 ReadOptions::SeekMode mode;
1551 int64_t pktTS = AV_NOPTS_VALUE;
1552 int64_t seekTimeUs = AV_NOPTS_VALUE;
1553 int64_t timeUs = AV_NOPTS_VALUE;
1555 status_t status = OK;
1557 if (options && options->getSeekTo(&seekTimeUs, &mode)) {
1558 ALOGV("~~~%s seekTimeUs: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1559 /* add the stream start time */
1560 if (mStream->start_time != AV_NOPTS_VALUE)
1561 seekTimeUs += mStream->start_time * av_q2d(mStream->time_base) * 1000000;
1562 ALOGV("~~~%s seekTimeUs[+startTime]: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1564 if (mExtractor->stream_seek(seekTimeUs, mMediaType) == SEEK)
1569 if (mExtractor->packet_queue_get(mQueue, &pkt, 1) < 0) {
1570 mExtractor->reachedEOS(mMediaType);
1571 return ERROR_END_OF_STREAM;
1575 if (pkt.data != flush_pkt.data) {
1576 av_free_packet(&pkt);
1580 #if WAIT_KEY_PACKET_AFTER_SEEK
1586 if (pkt.data == flush_pkt.data) {
1587 ALOGV("read %s flush pkt", av_get_media_type_string(mMediaType));
1588 av_free_packet(&pkt);
1589 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1591 } else if (pkt.data == NULL && pkt.size == 0) {
1592 ALOGD("read %s eos pkt", av_get_media_type_string(mMediaType));
1593 av_free_packet(&pkt);
1594 mExtractor->reachedEOS(mMediaType);
1595 return ERROR_END_OF_STREAM;
1598 key = pkt.flags & AV_PKT_FLAG_KEY ? 1 : 0;
1599 pktTS = pkt.pts; //FIXME AV_NOPTS_VALUE??
1601 if (pkt.pts == AV_NOPTS_VALUE)
1606 ALOGV("drop the no key packet");
1607 av_free_packet(&pkt);
1610 ALOGV("~~~~~~ got the key packet");
1615 if (pktTS != AV_NOPTS_VALUE && mFirstKeyPktTimestamp == AV_NOPTS_VALUE) {
1616 // update the first key timestamp
1617 mFirstKeyPktTimestamp = pktTS;
1620 if (pktTS != AV_NOPTS_VALUE && pktTS < mFirstKeyPktTimestamp) {
1621 ALOGV("drop the packet with the backward timestamp, maybe they are B-frames after I-frame ^_^");
1622 av_free_packet(&pkt);
1626 MediaBuffer *mediaBuffer = new MediaBuffer(pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
1627 mediaBuffer->meta_data()->clear();
1628 mediaBuffer->set_range(0, pkt.size);
1629 #if DISABLE_NAL_TO_ANNEXB
1630 mNal2AnnexB = false;
1632 if (mIsAVC && mNal2AnnexB) {
1633 /* Convert H.264 NAL format to annex b */
1634 if (mNALLengthSize >= 3 && mNALLengthSize <= 4 )
1636 uint8_t *dst = (uint8_t *)mediaBuffer->data();
1638 /* This only works for NAL sizes 3-4 */
1639 size_t len = pkt.size, i;
1640 uint8_t *ptr = pkt.data;
1641 while (len >= mNALLengthSize) {
1642 uint32_t nal_len = 0;
1643 for( i = 0; i < mNALLengthSize; i++ ) {
1644 nal_len = (nal_len << 8) | ptr[i];
1647 dst[mNALLengthSize - 1] = 1;
1648 if (nal_len > INT_MAX || nal_len > (unsigned int)len) {
1649 status = ERROR_MALFORMED;
1652 dst += mNALLengthSize;
1653 ptr += mNALLengthSize;
1654 len -= mNALLengthSize;
1656 memcpy(dst, ptr, nal_len);
1663 status = ERROR_MALFORMED;
1667 ALOGV("status != OK");
1668 mediaBuffer->release();
1670 av_free_packet(&pkt);
1671 return ERROR_MALFORMED;
1674 memcpy(mediaBuffer->data(), pkt.data, pkt.size);
1677 int64_t start_time = mStream->start_time != AV_NOPTS_VALUE ? mStream->start_time : 0;
1678 if (pktTS != AV_NOPTS_VALUE)
1679 timeUs = (int64_t)((pktTS - start_time) * av_q2d(mStream->time_base) * 1000000);
1681 timeUs = SF_NOPTS_VALUE; //FIXME AV_NOPTS_VALUE is negative, but stagefright need positive
1684 if (pktTS != AV_NOPTS_VALUE)
1685 ALOGV("read %s pkt, size:%d, key:%d, pts:%lld, dts:%lld, timeUs[-startTime]:%lld us (%.2f secs)",
1686 av_get_media_type_string(mMediaType), pkt.size, key, pkt.pts, pkt.dts, timeUs, timeUs/1E6);
1688 ALOGV("read %s pkt, size:%d, key:%d, pts:N/A, dts:N/A, timeUs[-startTime]:N/A",
1689 av_get_media_type_string(mMediaType), pkt.size, key);
1692 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
1693 mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, key);
1695 *buffer = mediaBuffer;
1697 av_free_packet(&pkt);
1702 ////////////////////////////////////////////////////////////////////////////////
1706 const char *container;
1709 static formatmap FILE_FORMATS[] = {
1710 {"mpeg", MEDIA_MIMETYPE_CONTAINER_MPEG2PS },
1711 {"mpegts", MEDIA_MIMETYPE_CONTAINER_TS },
1712 {"mov,mp4,m4a,3gp,3g2,mj2", MEDIA_MIMETYPE_CONTAINER_MPEG4 },
1713 {"matroska,webm", MEDIA_MIMETYPE_CONTAINER_MATROSKA },
1714 {"asf", MEDIA_MIMETYPE_CONTAINER_ASF },
1715 {"rm", MEDIA_MIMETYPE_CONTAINER_RM },
1716 {"flv", MEDIA_MIMETYPE_CONTAINER_FLV },
1717 {"swf", MEDIA_MIMETYPE_CONTAINER_FLV },
1718 {"avi", MEDIA_MIMETYPE_CONTAINER_AVI },
1719 {"ape", MEDIA_MIMETYPE_CONTAINER_APE },
1720 {"dts", MEDIA_MIMETYPE_CONTAINER_DTS },
1721 {"flac", MEDIA_MIMETYPE_CONTAINER_FLAC },
1722 {"ac3", MEDIA_MIMETYPE_AUDIO_AC3 },
1723 {"wav", MEDIA_MIMETYPE_CONTAINER_WAV },
1726 static void adjustMPEG4Confidence(AVFormatContext *ic, float *confidence)
1728 AVDictionary *tags = NULL;
1729 AVDictionaryEntry *tag = NULL;
1731 tags = ic->metadata;
1733 //NOTE: You can use command to show these tags,
1734 //e.g. "ffprobe -show_format 2012.mov"
1736 tag = av_dict_get(tags, "major_brand", NULL, 0);
1741 ALOGV("major_brand tag is:%s", tag->value);
1743 //when MEDIA_MIMETYPE_CONTAINER_MPEG4
1744 //WTF, MPEG4Extractor.cpp can not extractor mov format
1745 //NOTE: isCompatibleBrand(MPEG4Extractor.cpp)
1746 // Won't promise that the following file types can be played.
1747 // Just give these file types a chance.
1748 // FOURCC('q', 't', ' ', ' '), // Apple's QuickTime
1750 if (!strcmp(tag->value, "qt ")) {
1751 ALOGI("format is mov, confidence should be larger than mpeg4");
1752 //the MEDIA_MIMETYPE_CONTAINER_MPEG4 of confidence is 0.4f
1753 *confidence = 0.41f;
1757 static void adjustVideoCodecConfidence(AVFormatContext *ic,
1758 enum AVCodecID codec_id, float *confidence)
1763 //TODO. if the other stream(e.g. mp3) is supported by stagefright
1764 static void adjustAudioCodecConfidence(AVFormatContext *ic,
1765 enum AVCodecID codec_id, float *confidence)
1769 ALOGI("ffmpeg can demux ac3 only");
1770 *confidence = 0.88f;
1774 //TODO. if the other stream(e.g. mp3) is supported by stagefright
1775 ALOGI("ffmpeg can demux mp1 and mp2 only");
1776 *confidence = 0.88f;
1783 static void adjustCodecConfidence(AVFormatContext *ic, float *confidence)
1785 unsigned int idx = 0;
1786 AVCodecContext *avctx = NULL;
1787 AVMediaType codec_type = AVMEDIA_TYPE_UNKNOWN;
1788 enum AVCodecID codec_id = AV_CODEC_ID_NONE;
1789 bool haveVideo = false;
1790 bool haveAudio = false;
1791 bool haveMP3 = false;
1793 for (idx = 0; idx < ic->nb_streams; idx++) {
1794 avctx = ic->streams[idx]->codec;
1795 codec_type = avctx->codec_type;
1796 codec_id = avctx->codec_id;
1798 if (codec_type == AVMEDIA_TYPE_VIDEO) {
1800 adjustVideoCodecConfidence(ic, codec_id, confidence);
1801 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
1803 adjustAudioCodecConfidence(ic, codec_id, confidence);
1804 if (codec_id == CODEC_ID_MP3)
1809 if (haveVideo && haveMP3) {
1810 *confidence = 0.22f; // larger than MP3Extractor an MP3Extractor
1814 static void adjustConfidenceIfNeeded(const char *mime,
1815 AVFormatContext *ic, float *confidence)
1818 if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4)) {
1819 adjustMPEG4Confidence(ic, confidence);
1825 adjustCodecConfidence(ic, confidence);
1828 static const char *findMatchingContainer(const char *name)
1831 const char *container = NULL;
1833 ALOGI("list the formats suppoted by ffmpeg: ");
1834 ALOGI("========================================");
1835 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1836 ALOGV("format_names[%02d]: %s", i, FILE_FORMATS[i].format);
1838 ALOGI("========================================");
1840 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1841 int len = strlen(FILE_FORMATS[i].format);
1842 if (!av_strncasecmp(name, FILE_FORMATS[i].format, len)) {
1843 container = FILE_FORMATS[i].container;
1851 static const char *SniffFFMPEGCommon(const char *url, float *confidence)
1855 const char *container = NULL;
1856 AVFormatContext *ic = NULL;
1857 AVDictionary **opts = NULL;
1858 size_t orig_nb_streams = 0;
1860 status_t status = initFFmpeg();
1862 ALOGE("could not init ffmpeg");
1866 ic = avformat_alloc_context();
1869 ALOGE("oom for alloc avformat context");
1873 err = avformat_open_input(&ic, url, NULL, NULL);
1875 ALOGE("%s: avformat_open_input failed, err:%s", url, av_err2str(err));
1879 opts = setup_find_stream_info_opts(ic, codec_opts);
1880 orig_nb_streams = ic->nb_streams;
1881 err = avformat_find_stream_info(ic, opts);
1883 ALOGE("%s: could not find stream info, err:%s", url, av_err2str(err));
1886 for (i = 0; i < orig_nb_streams; i++) {
1887 av_dict_free(&opts[i]);
1891 av_dump_format(ic, 0, url, 0);
1893 ALOGI("FFmpegExtrator, url: %s, format_name: %s, format_long_name: %s",
1894 url, ic->iformat->name, ic->iformat->long_name);
1896 container = findMatchingContainer(ic->iformat->name);
1899 adjustConfidenceIfNeeded(container, ic, confidence);
1904 avformat_close_input(&ic);
1914 static const char *LegacySniffFFMPEG(const sp<DataSource> &source, float *confidence)
1916 String8 uri = source->getUri();
1921 ALOGI("source url:%s", uri.string());
1923 return SniffFFMPEGCommon(uri.string(), confidence);
1926 static const char *BetterSniffFFMPEG(const sp<DataSource> &source, float *confidence)
1928 char url[128] = {0};
1930 ALOGI("android-source:%p", source.get());
1932 // pass the addr of smart pointer("source")
1933 snprintf(url, sizeof(url), "android-source:%p", source.get());
1935 return SniffFFMPEGCommon(url, confidence);
1939 const sp<DataSource> &source, String8 *mimeType, float *confidence,
1940 sp<AMessage> *meta) {
1941 ALOGV("SniffFFMPEG");
1943 *confidence = 0.08f; // be the last resort, by default
1945 const char *container = BetterSniffFFMPEG(source, confidence);
1947 ALOGW("sniff through BetterSniffFFMPEG failed, try LegacySniffFFMPEG");
1948 container = LegacySniffFFMPEG(source, confidence);
1950 ALOGI("sniff through LegacySniffFFMPEG success");
1953 ALOGI("sniff through BetterSniffFFMPEG success");
1956 if (container == NULL) {
1957 ALOGD("SniffFFMPEG failed to sniff this source");
1961 ALOGD("ffmpeg detected media content as '%s' with confidence %.2f",
1962 container, *confidence);
1964 /* use MPEG4Extractor(not extended extractor) for HTTP source only */
1965 if (!strcasecmp(container, MEDIA_MIMETYPE_CONTAINER_MPEG4)
1966 && (source->flags() & DataSource::kIsCachingDataSource)) {
1967 ALOGI("support container: %s, but it is caching data source, "
1968 "Don't use ffmpegextractor", container);
1972 mimeType->setTo(container);
1974 *meta = new AMessage;
1975 (*meta)->setString("extended-extractor", "extended-extractor");
1976 (*meta)->setString("extended-extractor-subtype", "ffmpegextractor");
1979 char value[PROPERTY_VALUE_MAX];
1980 property_get("sys.media.parser.ffmpeg", value, "0");
1982 ALOGI("[debug] parser use ffmpeg");
1983 *confidence = 0.88f;
1986 if (*confidence == 0.88f) {
1987 (*meta)->setString("extended-extractor-use", "ffmpegextractor");
1993 MediaExtractor *CreateFFmpegExtractor(const sp<DataSource> &source, const char *mime, const sp<AMessage> &meta) {
1994 MediaExtractor *ret = NULL;
1996 if (meta.get() && meta->findString("extended-extractor", ¬use) && (
1997 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4) ||
1998 !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_MPEG) ||
1999 !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AC3) ||
2000 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MOV) ||
2001 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MATROSKA) ||
2002 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_TS) ||
2003 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2PS) ||
2004 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_AVI) ||
2005 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_ASF) ||
2006 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WEBM) ||
2007 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMV) ||
2008 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPG) ||
2009 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLV) ||
2010 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DIVX) ||
2011 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RM) ||
2012 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WAV) ||
2013 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_FLAC) ||
2014 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_APE) ||
2015 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_DTS) ||
2016 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MP2) ||
2017 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_RA) ||
2018 !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WMA))) {
2019 ret = new FFmpegExtractor(source);
2022 ALOGD("%ssupported mime: %s", (ret ? "" : "un"), mime);
2026 } // namespace android
2028 extern "C" void getExtractorPlugin(android::MediaExtractor::Plugin *plugin)
2030 plugin->sniff = android::SniffFFMPEG;
2031 plugin->create = android::CreateFFmpegExtractor;