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>
21 #include <limits.h> /* INT_MAX */
23 #include <media/stagefright/foundation/ABitReader.h>
24 #include <media/stagefright/foundation/ABuffer.h>
25 #include <media/stagefright/foundation/ADebug.h>
26 #include <media/stagefright/foundation/AMessage.h>
27 #include <media/stagefright/foundation/hexdump.h>
28 #include <media/stagefright/DataSource.h>
29 #include <media/stagefright/MediaBuffer.h>
30 #include <media/stagefright/MediaDebug.h>
31 #include <media/stagefright/MediaDefs.h>
32 #include <media/stagefright/MediaErrors.h>
33 #include <media/stagefright/MediaSource.h>
34 #include <media/stagefright/MetaData.h>
35 #include <media/stagefright/Utils.h>
36 #include <utils/String8.h>
37 #include <utils/misc.h>
39 #include "include/avc_utils.h"
40 #include "utils/common_utils.h"
41 #include "utils/ffmpeg_utils.h"
42 #include "FFmpegExtractor.h"
44 #define DEBUG_READ_ENTRY 0
45 #define DEBUG_DISABLE_VIDEO 0
46 #define DEBUG_DISABLE_AUDIO 0
47 #define WAIT_KEY_PACKET_AFTER_SEEK 1
48 #define DISABLE_NAL_TO_ANNEXB 0
50 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
51 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
53 #define EXTRACTOR_MAX_PROBE_PACKETS 200
55 #define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE)
62 static AVPacket flush_pkt;
66 struct FFmpegExtractor::Track : public MediaSource {
67 Track(const sp<FFmpegExtractor> &extractor, sp<MetaData> meta, bool isAVC,
68 AVStream *stream, PacketQueue *queue);
70 virtual status_t start(MetaData *params);
71 virtual status_t stop();
72 virtual sp<MetaData> getFormat();
74 virtual status_t read(
75 MediaBuffer **buffer, const ReadOptions *options);
81 friend struct FFmpegExtractor;
83 sp<FFmpegExtractor> mExtractor;
86 enum AVMediaType mMediaType;
91 size_t mNALLengthSize;
97 int64_t mFirstKeyPktTimestamp;
99 DISALLOW_EVIL_CONSTRUCTORS(Track);
102 ////////////////////////////////////////////////////////////////////////////////
104 FFmpegExtractor::FFmpegExtractor(const sp<DataSource> &source)
105 : mDataSource(source),
106 mReaderThreadStarted(false),
107 mInitCheck(NO_INIT) {
108 LOGV("FFmpegExtractor::FFmpegExtractor");
111 const char *url = mDataSource->getNamURI();
113 LOGI("url is error!");
117 if (!strcmp(url, "-")) {
118 av_strlcpy(mFilename, "pipe:", strlen("pipe:") + 1);
120 av_strlcpy(mFilename, url, strlen(url) + 1);
122 LOGI("url: %s, mFilename: %s", url, mFilename);
126 LOGE("failed to init ffmpeg");
130 // start reader here, as we want to extract extradata from bitstream if no extradata
133 while(mProbePkts <= EXTRACTOR_MAX_PROBE_PACKETS && !mEOF &&
134 (mFormatCtx->pb ? !mFormatCtx->pb->error : 1) &&
135 (mDefersToCreateVideoTrack || mDefersToCreateAudioTrack)) {
136 // FIXME, i am so lazy! Should use pthread_cond_wait to wait conditions
140 LOGV("mProbePkts: %d, mEOF: %d, pb->error(if has): %d, mDefersToCreateVideoTrack: %d, mDefersToCreateAudioTrack: %d",
141 mProbePkts, mEOF, mFormatCtx->pb ? mFormatCtx->pb->error : 0, mDefersToCreateVideoTrack, mDefersToCreateAudioTrack);
146 FFmpegExtractor::~FFmpegExtractor() {
147 LOGV("FFmpegExtractor::~FFmpegExtractor");
149 // stop reader here if no track!
155 size_t FFmpegExtractor::countTracks() {
156 return mInitCheck == OK ? mTracks.size() : 0;
159 sp<MediaSource> FFmpegExtractor::getTrack(size_t index) {
160 LOGV("FFmpegExtractor::getTrack[%d]", index);
162 if (mInitCheck != OK) {
166 if (index >= mTracks.size()) {
170 return mTracks.valueAt(index);
173 sp<MetaData> FFmpegExtractor::getTrackMetaData(size_t index, uint32_t flags) {
174 LOGV("FFmpegExtractor::getTrackMetaData[%d]", index);
176 if (mInitCheck != OK) {
180 if (index >= mTracks.size()) {
184 return mTracks.valueAt(index)->getFormat();
187 sp<MetaData> FFmpegExtractor::getMetaData() {
188 LOGV("FFmpegExtractor::getMetaData");
190 if (mInitCheck != OK) {
194 sp<MetaData> meta = new MetaData;
196 meta->setCString(kKeyMIMEType, "video/ffmpeg");
201 uint32_t FFmpegExtractor::flags() const {
202 LOGV("FFmpegExtractor::flags");
204 if (mInitCheck != OK) {
208 uint32_t flags = CAN_PAUSE;
210 if (mFormatCtx->duration != AV_NOPTS_VALUE) {
211 flags |= CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK;
217 void FFmpegExtractor::packet_queue_init(PacketQueue *q)
219 memset(q, 0, sizeof(PacketQueue));
220 pthread_mutex_init(&q->mutex, NULL);
221 pthread_cond_init(&q->cond, NULL);
222 packet_queue_put(q, &flush_pkt);
225 void FFmpegExtractor::packet_queue_flush(PacketQueue *q)
227 AVPacketList *pkt, *pkt1;
229 pthread_mutex_lock(&q->mutex);
230 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
232 av_free_packet(&pkt->pkt);
239 pthread_mutex_unlock(&q->mutex);
242 void FFmpegExtractor::packet_queue_end(PacketQueue *q)
244 packet_queue_flush(q);
247 void FFmpegExtractor::packet_queue_abort(PacketQueue *q)
249 pthread_mutex_lock(&q->mutex);
251 q->abort_request = 1;
253 pthread_cond_signal(&q->cond);
255 pthread_mutex_unlock(&q->mutex);
258 int FFmpegExtractor::packet_queue_put(PacketQueue *q, AVPacket *pkt)
262 /* duplicate the packet */
263 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
266 pkt1 = (AVPacketList *)av_malloc(sizeof(AVPacketList));
272 pthread_mutex_lock(&q->mutex);
278 q->last_pkt->next = pkt1;
281 //q->size += pkt1->pkt.size + sizeof(*pkt1);
282 q->size += pkt1->pkt.size;
283 pthread_cond_signal(&q->cond);
285 pthread_mutex_unlock(&q->mutex);
289 /* packet queue handling */
290 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
291 int FFmpegExtractor::packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
296 pthread_mutex_lock(&q->mutex);
299 if (q->abort_request) {
306 q->first_pkt = pkt1->next;
310 //q->size -= pkt1->pkt.size + sizeof(*pkt1);
311 q->size -= pkt1->pkt.size;
320 pthread_cond_wait(&q->cond, &q->mutex);
323 pthread_mutex_unlock(&q->mutex);
327 static void EncodeSize14(uint8_t **_ptr, size_t size) {
328 CHECK_LE(size, 0x3fff);
330 uint8_t *ptr = *_ptr;
332 *ptr++ = 0x80 | (size >> 7);
333 *ptr++ = size & 0x7f;
338 static sp<ABuffer> MakeMPEGVideoESDS(const sp<ABuffer> &csd) {
339 sp<ABuffer> esds = new ABuffer(csd->size() + 25);
341 uint8_t *ptr = esds->data();
343 EncodeSize14(&ptr, 22 + csd->size());
345 *ptr++ = 0x00; // ES_ID
348 *ptr++ = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag
351 EncodeSize14(&ptr, 16 + csd->size());
353 *ptr++ = 0x40; // Audio ISO/IEC 14496-3
355 for (size_t i = 0; i < 12; ++i) {
360 EncodeSize14(&ptr, csd->size());
362 memcpy(ptr, csd->data(), csd->size());
367 // Returns the sample rate based on the sampling frequency index
368 static uint32_t get_sample_rate(const uint8_t sf_index)
370 static const uint32_t sample_rates[] =
372 96000, 88200, 64000, 48000, 44100, 32000,
373 24000, 22050, 16000, 12000, 11025, 8000
376 if (sf_index < sizeof(sample_rates) / sizeof(sample_rates[0])) {
377 return sample_rates[sf_index];
383 int FFmpegExtractor::check_extradata(AVCodecContext *avctx)
386 bool *defersToCreateTrack;
387 AVBitStreamFilterContext **bsfc;
390 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
392 defersToCreateTrack = &mDefersToCreateVideoTrack;
393 } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO){
395 defersToCreateTrack = &mDefersToCreateAudioTrack;
399 if (avctx->codec_id == CODEC_ID_MP3 ||
400 avctx->codec_id == CODEC_ID_MP1 ||
401 avctx->codec_id == CODEC_ID_MP2 ||
402 avctx->codec_id == CODEC_ID_AC3 ||
403 avctx->codec_id == CODEC_ID_H263 ||
404 avctx->codec_id == CODEC_ID_H263P ||
405 avctx->codec_id == CODEC_ID_H263I ||
406 avctx->codec_id == CODEC_ID_WMV1)
409 // is extradata compatible with android?
410 if (avctx->codec_id != CODEC_ID_AAC) {
411 int is_compatible = is_extradata_compatible_with_android(avctx);
412 if (!is_compatible) {
413 LOGI("%s extradata is not compatible with android, should to extract it from bitstream",
414 av_get_media_type_string(avctx->codec_type));
415 *defersToCreateTrack = true;
416 *bsfc = NULL; // H264 don't need bsfc, only AAC?
422 if (avctx->codec_id == CODEC_ID_AAC) {
423 name = "aac_adtstoasc";
426 if (avctx->extradata_size <= 0) {
427 LOGI("No %s extradata found, should to extract it from bitstream",
428 av_get_media_type_string(avctx->codec_type));
429 *defersToCreateTrack = true;
430 //CHECK(name != NULL);
431 if (!*bsfc && name) {
432 *bsfc = av_bitstream_filter_init(name);
434 LOGE("Cannot open the %s BSF!", name);
435 *defersToCreateTrack = false;
438 LOGV("open the %s bsf", name);
448 void FFmpegExtractor::printTime(int64_t time)
450 int hours, mins, secs, us;
452 if (time == AV_NOPTS_VALUE)
455 secs = time / AV_TIME_BASE;
456 us = time % AV_TIME_BASE;
461 LOGI("the time is %02d:%02d:%02d.%02d",
462 hours, mins, secs, (100 * us) / AV_TIME_BASE);
465 int FFmpegExtractor::stream_component_open(int stream_index)
467 AVCodecContext *avctx;
470 bool supported = false;
476 LOGI("stream_index: %d", stream_index);
477 if (stream_index < 0 || stream_index >= mFormatCtx->nb_streams)
479 avctx = mFormatCtx->streams[stream_index]->codec;
481 switch(avctx->codec_id) {
492 case CODEC_ID_MPEG2VIDEO:
499 case CODEC_ID_WMAPRO:
500 case CODEC_ID_WMALOSSLESS:
511 LOGE("unsupport the codec, id: 0x%0x", avctx->codec_id);
514 LOGV("support the codec");
517 ssize_t index = mTracks.indexOfKey(stream_index);
520 LOGE("this track already exists");
524 mFormatCtx->streams[stream_index]->discard = AVDISCARD_DEFAULT;
527 av_get_codec_tag_string(tagbuf, sizeof(tagbuf), avctx->codec_tag);
528 LOGV("Tag %s/0x%08x with codec id '%d'\n", tagbuf, avctx->codec_tag, avctx->codec_id);
530 switch (avctx->codec_type) {
531 case AVMEDIA_TYPE_VIDEO:
532 if (mVideoStreamIdx == -1)
533 mVideoStreamIdx = stream_index;
534 if (mVideoStream == NULL)
535 mVideoStream = mFormatCtx->streams[stream_index];
536 if (!mVideoQInited) {
537 packet_queue_init(&mVideoQ);
538 mVideoQInited = true;
541 ret = check_extradata(avctx);
544 // disable the stream
545 mVideoStreamIdx = -1;
547 packet_queue_end(&mVideoQ);
548 mVideoQInited = false;
549 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
554 if (avctx->extradata) {
555 LOGV("video stream extradata:");
556 hexdump(avctx->extradata, avctx->extradata_size);
558 LOGV("video stream no extradata, but we can ignore it.");
563 switch(avctx->codec_id) {
567 * http://msdn.microsoft.com/en-us/library/dd757808(v=vs.85).aspx
569 //if (avctx->codec_tag && avctx->codec_tag == AV_RL32("avc1")) {
570 if (avctx->extradata[0] == 1 /* configurationVersion */) {
571 // H.264 bitstream without start codes.
575 if (avctx->width == 0 || avctx->height == 0) {
576 int32_t width, height;
577 sp<ABuffer> seqParamSet = new ABuffer(avctx->extradata_size - 8);
578 memcpy(seqParamSet->data(), avctx->extradata + 8, avctx->extradata_size - 8);
579 FindAVCDimensions(seqParamSet, &width, &height);
580 avctx->width = width;
581 avctx->height = height;
584 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
585 meta->setData(kKeyAVCC, kTypeAVCC, avctx->extradata, avctx->extradata_size);
587 // H.264 bitstream with start codes.
591 /* set NULL to release meta as we will new a meta in MakeAVCCodecSpecificData() fxn */
595 sp<ABuffer> buffer = new ABuffer(avctx->extradata_size);
596 memcpy(buffer->data(), avctx->extradata, avctx->extradata_size);
597 meta = MakeAVCCodecSpecificData(buffer);
602 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
604 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
605 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
606 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
607 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
614 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
616 case CODEC_ID_MPEG2VIDEO:
618 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
620 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
621 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
622 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
623 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
628 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VC1);
629 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
633 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
634 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_7);
638 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
639 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
640 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_8);
644 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV);
645 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
646 meta->setInt32(kKeyWMVVersion, kTypeWMVVer_9);
650 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RV);
651 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
654 CHECK(!"Should not be here. Unsupported codec.");
658 LOGI("width: %d, height: %d, bit_rate: %d", avctx->width, avctx->height, avctx->bit_rate);
660 meta->setInt32(kKeyWidth, avctx->width);
661 meta->setInt32(kKeyHeight, avctx->height);
662 if (avctx->bit_rate > 0)
663 meta->setInt32(kKeyBitRate, avctx->bit_rate);
664 if (mVideoStream->duration != AV_NOPTS_VALUE) {
665 int64_t duration = mVideoStream->duration * av_q2d(mVideoStream->time_base) * 1000000;
667 LOGV("video startTime: %lld", mVideoStream->start_time);
668 meta->setInt64(kKeyDuration, duration);
670 // default when no stream duration
671 meta->setInt64(kKeyDuration, mFormatCtx->duration);
674 LOGV("create a video track");
676 stream_index, new Track(this, meta, isAVC, mVideoStream, &mVideoQ));
678 mDefersToCreateVideoTrack = false;
681 case AVMEDIA_TYPE_AUDIO:
682 if (mAudioStreamIdx == -1)
683 mAudioStreamIdx = stream_index;
684 if (mAudioStream == NULL)
685 mAudioStream = mFormatCtx->streams[stream_index];
686 if (!mAudioQInited) {
687 packet_queue_init(&mAudioQ);
688 mAudioQInited = true;
691 ret = check_extradata(avctx);
694 // disable the stream
695 mAudioStreamIdx = -1;
697 packet_queue_end(&mAudioQ);
698 mAudioQInited = false;
699 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
704 if (avctx->extradata) {
705 LOGV("audio stream extradata:");
706 hexdump(avctx->extradata, avctx->extradata_size);
708 LOGV("audio stream no extradata, but we can ignore it.");
711 switch(avctx->codec_id) {
715 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
720 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
725 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
730 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
735 const uint8_t *header;
736 uint8_t profile, sf_index, channel;
738 header = avctx->extradata;
739 CHECK(header != NULL);
741 // AudioSpecificInfo follows
742 // oooo offf fccc c000
743 // o - audioObjectType
744 // f - samplingFreqIndex
746 profile = ((header[0] & 0xf8) >> 3) - 1;
747 sf_index = (header[0] & 0x07) << 1 | (header[1] & 0x80) >> 7;
748 sr = get_sample_rate(sf_index);
750 LOGE("unsupport the sample rate");
753 channel = (header[1] >> 3) & 0xf;
754 LOGV("profile: %d, sf_index: %d, channel: %d", profile, sf_index, channel);
756 meta = MakeAACCodecSpecificData(profile, sf_index, channel);
757 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
759 case CODEC_ID_WMAV1: // TODO, version?
762 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
763 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
768 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
769 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
770 meta->setInt32(kKeyWMAVersion, kTypeWMA);
772 case CODEC_ID_WMAPRO:
775 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
776 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
777 meta->setInt32(kKeyWMAVersion, kTypeWMAPro);
779 case CODEC_ID_WMALOSSLESS:
782 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_WMA);
783 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
784 meta->setInt32(kKeyWMAVersion, kTypeWMALossLess);
786 case CODEC_ID_COOK: // audio codec in RMVB
789 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RA);
790 meta->setData(kKeyRawCodecSpecificData, 0, avctx->extradata, avctx->extradata_size);
793 CHECK(!"Should not be here. Unsupported codec.");
797 LOGI("bit_rate: %d, sample_rate: %d, channels: %d", avctx->bit_rate, avctx->sample_rate, avctx->channels);
799 meta->setInt32(kKeySampleRate, avctx->sample_rate);
800 meta->setInt32(kKeyChannelCount, avctx->channels);
801 meta->setInt32(kKeyBitRate, avctx->bit_rate);
802 meta->setInt32(kKeyBlockAlign, avctx->block_align);
803 if (mAudioStream->duration != AV_NOPTS_VALUE) {
804 int64_t duration = mAudioStream->duration * av_q2d(mAudioStream->time_base) * 1000000;
806 LOGV("audio startTime: %lld", mAudioStream->start_time);
807 meta->setInt64(kKeyDuration, duration);
809 // default when no stream duration
810 meta->setInt64(kKeyDuration, mFormatCtx->duration);
813 LOGV("create a audio track");
815 stream_index, new Track(this, meta, false, mAudioStream, &mAudioQ));
817 mDefersToCreateAudioTrack = false;
820 case AVMEDIA_TYPE_SUBTITLE:
822 CHECK(!"Should not be here. Unsupported media type.");
825 CHECK(!"Should not be here. Unsupported media type.");
831 void FFmpegExtractor::stream_component_close(int stream_index)
833 AVCodecContext *avctx;
835 if (stream_index < 0 || stream_index >= mFormatCtx->nb_streams)
837 avctx = mFormatCtx->streams[stream_index]->codec;
839 switch (avctx->codec_type) {
840 case AVMEDIA_TYPE_VIDEO:
841 LOGV("packet_queue_abort videoq");
842 packet_queue_abort(&mVideoQ);
843 /* wait until the end */
844 while (!mAbortRequest && !mVideoEOSReceived) {
845 LOGV("wait for video received");
848 LOGV("packet_queue_end videoq");
849 packet_queue_end(&mVideoQ);
851 case AVMEDIA_TYPE_AUDIO:
852 LOGV("packet_queue_abort audioq");
853 packet_queue_abort(&mAudioQ);
854 while (!mAbortRequest && !mAudioEOSReceived) {
855 LOGV("wait for audio received");
858 LOGV("packet_queue_end audioq");
859 packet_queue_end(&mAudioQ);
861 case AVMEDIA_TYPE_SUBTITLE:
867 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
868 switch (avctx->codec_type) {
869 case AVMEDIA_TYPE_VIDEO:
871 mVideoStreamIdx = -1;
873 av_bitstream_filter_close(mVideoBsfc);
877 case AVMEDIA_TYPE_AUDIO:
879 mAudioStreamIdx = -1;
881 av_bitstream_filter_close(mAudioBsfc);
885 case AVMEDIA_TYPE_SUBTITLE:
892 void FFmpegExtractor::reachedEOS(enum AVMediaType media_type)
894 Mutex::Autolock autoLock(mLock);
896 if (media_type == AVMEDIA_TYPE_VIDEO) {
897 mVideoEOSReceived = true;
898 } else if (media_type == AVMEDIA_TYPE_AUDIO) {
899 mAudioEOSReceived = true;
903 /* seek in the stream */
904 int FFmpegExtractor::stream_seek(int64_t pos, enum AVMediaType media_type)
906 Mutex::Autolock autoLock(mLock);
908 if (mVideoStreamIdx >= 0 &&
909 mAudioStreamIdx >= 0 &&
910 media_type == AVMEDIA_TYPE_AUDIO &&
911 !mVideoEOSReceived) {
916 if (mAudioStreamIdx >= 0)
917 packet_queue_flush(&mAudioQ);
918 if (mVideoStreamIdx >= 0)
919 packet_queue_flush(&mVideoQ);
922 mSeekFlags &= ~AVSEEK_FLAG_BYTE;
929 int FFmpegExtractor::decode_interrupt_cb(void *ctx)
931 FFmpegExtractor *extrator = static_cast<FFmpegExtractor *>(ctx);
932 return extrator->mAbortRequest;
935 void FFmpegExtractor::print_error_ex(const char *filename, int err)
938 const char *errbuf_ptr = errbuf;
940 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
941 errbuf_ptr = strerror(AVUNERROR(err));
942 LOGI("%s: %s\n", filename, errbuf_ptr);
945 void FFmpegExtractor::setFFmpegDefaultOpts()
948 #if DEBUG_DISABLE_VIDEO
953 #if DEBUG_DISABLE_AUDIO
959 mSeekByBytes = 0; /* seek by bytes 0=off 1=on -1=auto" */
960 mDuration = AV_NOPTS_VALUE;
961 mSeekPos = AV_NOPTS_VALUE;
965 mVideoStreamIdx = -1;
966 mAudioStreamIdx = -1;
969 mVideoQInited = false;
970 mAudioQInited = false;
971 mDefersToCreateVideoTrack = false;
972 mDefersToCreateAudioTrack = false;
985 int FFmpegExtractor::initStreams()
990 int ret = 0, audio_ret = 0, video_ret = 0;
991 int pkt_in_play_range = 0;
992 AVDictionaryEntry *t;
995 int st_index[AVMEDIA_TYPE_NB] = {0};
996 int wanted_stream[AVMEDIA_TYPE_NB] = {0};
997 st_index[AVMEDIA_TYPE_AUDIO] = -1;
998 st_index[AVMEDIA_TYPE_VIDEO] = -1;
999 wanted_stream[AVMEDIA_TYPE_AUDIO] = -1;
1000 wanted_stream[AVMEDIA_TYPE_VIDEO] = -1;
1002 setFFmpegDefaultOpts();
1004 status = initFFmpeg();
1010 av_init_packet(&flush_pkt);
1011 flush_pkt.data = (uint8_t *)"FLUSH";
1014 mFormatCtx = avformat_alloc_context();
1015 mFormatCtx->interrupt_callback.callback = decode_interrupt_cb;
1016 mFormatCtx->interrupt_callback.opaque = this;
1017 LOGV("mFilename: %s", mFilename);
1018 err = avformat_open_input(&mFormatCtx, mFilename, NULL, &format_opts);
1020 print_error_ex(mFilename, err);
1024 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1025 LOGE("Option %s not found.\n", t->key);
1026 //ret = AVERROR_OPTION_NOT_FOUND;
1032 mFormatCtx->flags |= AVFMT_FLAG_GENPTS;
1034 opts = setup_find_stream_info_opts(mFormatCtx, codec_opts);
1035 orig_nb_streams = mFormatCtx->nb_streams;
1037 err = avformat_find_stream_info(mFormatCtx, opts);
1039 LOGE("%s: could not find codec parameters\n", mFilename);
1043 for (i = 0; i < orig_nb_streams; i++)
1044 av_dict_free(&opts[i]);
1048 mFormatCtx->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
1050 if (mSeekByBytes < 0)
1051 mSeekByBytes = !!(mFormatCtx->iformat->flags & AVFMT_TS_DISCONT);
1053 for (i = 0; i < mFormatCtx->nb_streams; i++)
1054 mFormatCtx->streams[i]->discard = AVDISCARD_ALL;
1056 st_index[AVMEDIA_TYPE_VIDEO] =
1057 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_VIDEO,
1058 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
1060 st_index[AVMEDIA_TYPE_AUDIO] =
1061 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_AUDIO,
1062 wanted_stream[AVMEDIA_TYPE_AUDIO],
1063 st_index[AVMEDIA_TYPE_VIDEO],
1066 av_dump_format(mFormatCtx, 0, mFilename, 0);
1069 if (mFormatCtx->duration != AV_NOPTS_VALUE &&
1070 mFormatCtx->start_time != AV_NOPTS_VALUE) {
1071 int hours, mins, secs, us;
1073 LOGV("file startTime: %lld", mFormatCtx->start_time);
1075 mDuration = mFormatCtx->duration;
1077 secs = mDuration / AV_TIME_BASE;
1078 us = mDuration % AV_TIME_BASE;
1083 LOGI("the duration is %02d:%02d:%02d.%02d",
1084 hours, mins, secs, (100 * us) / AV_TIME_BASE);
1087 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
1088 audio_ret = stream_component_open(st_index[AVMEDIA_TYPE_AUDIO]);
1091 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
1092 video_ret = stream_component_open(st_index[AVMEDIA_TYPE_VIDEO]);
1095 if ( audio_ret < 0 && video_ret < 0) {
1096 LOGE("%s: could not open codecs\n", mFilename);
1107 void FFmpegExtractor::deInitStreams()
1110 avformat_close_input(&mFormatCtx);
1116 status_t FFmpegExtractor::startReaderThread() {
1117 LOGV("Starting reader thread");
1118 Mutex::Autolock autoLock(mLock);
1120 if (mReaderThreadStarted)
1123 pthread_attr_t attr;
1124 pthread_attr_init(&attr);
1125 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
1126 pthread_create(&mReaderThread, &attr, ReaderWrapper, this);
1127 pthread_attr_destroy(&attr);
1128 mReaderThreadStarted = true;
1129 LOGD("Reader thread started");
1134 void FFmpegExtractor::stopReaderThread() {
1135 LOGV("Stopping reader thread");
1136 Mutex::Autolock autoLock(mLock);
1138 if (!mReaderThreadStarted) {
1139 LOGD("Reader thread have been stopped");
1146 pthread_join(mReaderThread, &dummy);
1147 mReaderThreadStarted = false;
1148 LOGD("Reader thread stopped");
1152 void *FFmpegExtractor::ReaderWrapper(void *me) {
1153 ((FFmpegExtractor *)me)->readerEntry();
1158 void FFmpegExtractor::readerEntry() {
1160 AVPacket pkt1, *pkt = &pkt1;
1162 int pkt_in_play_range = 0;
1164 LOGV("FFmpegExtractor::readerEntry");
1166 mVideoEOSReceived = false;
1167 mAudioEOSReceived = false;
1173 if (mPaused != mLastPaused) {
1174 mLastPaused = mPaused;
1176 mReadPauseReturn = av_read_pause(mFormatCtx);
1178 av_read_play(mFormatCtx);
1180 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
1182 (!strcmp(mFormatCtx->iformat->name, "rtsp") ||
1183 (mFormatCtx->pb && !strncmp(mFilename, "mmsh:", 5)))) {
1184 /* wait 10 ms to avoid trying to get another packet */
1192 LOGV("readerEntry, mSeekReq: %d", mSeekReq);
1193 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, mSeekPos, INT64_MAX, mSeekFlags);
1195 LOGE("%s: error while seeking", mFormatCtx->filename);
1197 if (mAudioStreamIdx >= 0) {
1198 packet_queue_flush(&mAudioQ);
1199 packet_queue_put(&mAudioQ, &flush_pkt);
1201 if (mVideoStreamIdx >= 0) {
1202 packet_queue_flush(&mVideoQ);
1203 packet_queue_put(&mVideoQ, &flush_pkt);
1210 /* if the queue are full, no need to read more */
1211 if ( mAudioQ.size + mVideoQ.size > MAX_QUEUE_SIZE
1212 || ( (mAudioQ .size > MIN_AUDIOQ_SIZE || mAudioStreamIdx < 0)
1213 && (mVideoQ .nb_packets > MIN_FRAMES || mVideoStreamIdx < 0))) {
1214 #if DEBUG_READ_ENTRY
1215 LOGV("readerEntry, is full, fuck");
1223 if (mVideoStreamIdx >= 0) {
1224 av_init_packet(pkt);
1227 pkt->stream_index = mVideoStreamIdx;
1228 packet_queue_put(&mVideoQ, pkt);
1230 if (mAudioStreamIdx >= 0) {
1231 av_init_packet(pkt);
1234 pkt->stream_index = mAudioStreamIdx;
1235 packet_queue_put(&mAudioQ, pkt);
1238 #if DEBUG_READ_ENTRY
1239 LOGV("readerEntry, eof = 1, mVideoQ.size: %d, mVideoQ.nb_packets: %d, mAudioQ.size: %d, mAudioQ.nb_packets: %d",
1240 mVideoQ.size, mVideoQ.nb_packets, mAudioQ.size, mAudioQ.nb_packets);
1242 if (mAudioQ.size + mVideoQ.size == 0) {
1252 ret = av_read_frame(mFormatCtx, pkt);
1255 if (ret == AVERROR_EOF || url_feof(mFormatCtx->pb))
1256 if (ret == AVERROR_EOF) {
1257 //LOGV("ret == AVERROR_EOF");
1259 if (url_feof(mFormatCtx->pb)) {
1260 //LOGV("url_feof(mFormatCtx->pb)");
1265 if (mFormatCtx->pb && mFormatCtx->pb->error) {
1266 LOGE("mFormatCtx->pb->error: %d", mFormatCtx->pb->error);
1273 if (pkt->stream_index == mVideoStreamIdx) {
1274 if (mDefersToCreateVideoTrack) {
1275 AVCodecContext *avctx = mFormatCtx->streams[mVideoStreamIdx]->codec;
1277 int i = parser_split(avctx, pkt->data, pkt->size);
1278 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
1279 if (avctx->extradata)
1280 av_freep(&avctx->extradata);
1281 avctx->extradata_size= i;
1282 avctx->extradata = (uint8_t *)av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1283 if (!avctx->extradata) {
1284 //return AVERROR(ENOMEM);
1285 ret = AVERROR(ENOMEM);
1288 // sps + pps(there may be sei in it)
1289 memcpy(avctx->extradata, pkt->data, avctx->extradata_size);
1290 memset(avctx->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1292 av_free_packet(pkt);
1296 stream_component_open(mVideoStreamIdx);
1297 if (!mDefersToCreateVideoTrack)
1298 LOGI("probe packet counter: %d when create video track ok", mProbePkts);
1299 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1300 LOGI("probe packet counter to max: %d, create video track: %d",
1301 mProbePkts, !mDefersToCreateVideoTrack);
1303 } else if (pkt->stream_index == mAudioStreamIdx) {
1307 AVCodecContext *avctx = mFormatCtx->streams[mAudioStreamIdx]->codec;
1308 if (mAudioBsfc && pkt && pkt->data) {
1309 ret = av_bitstream_filter_filter(mAudioBsfc, avctx, NULL, &outbuf, &outbuf_size,
1310 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
1312 if (ret < 0 ||!outbuf_size) {
1313 av_free_packet(pkt);
1316 if (outbuf && outbuf != pkt->data) {
1317 memmove(pkt->data, outbuf, outbuf_size);
1318 pkt->size = outbuf_size;
1321 if (mDefersToCreateAudioTrack) {
1322 if (avctx->extradata_size <= 0) {
1323 av_free_packet(pkt);
1326 stream_component_open(mAudioStreamIdx);
1327 if (!mDefersToCreateAudioTrack)
1328 LOGI("probe packet counter: %d when create audio track ok", mProbePkts);
1329 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1330 LOGI("probe packet counter to max: %d, create audio track: %d",
1331 mProbePkts, !mDefersToCreateAudioTrack);
1335 if (pkt->stream_index == mAudioStreamIdx) {
1336 packet_queue_put(&mAudioQ, pkt);
1337 } else if (pkt->stream_index == mVideoStreamIdx) {
1338 packet_queue_put(&mVideoQ, pkt);
1340 av_free_packet(pkt);
1343 /* wait until the end */
1344 while (!mAbortRequest) {
1350 LOGI("reader thread goto end...");
1352 /* close each stream */
1353 if (mAudioStreamIdx >= 0)
1354 stream_component_close(mAudioStreamIdx);
1355 if (mVideoStreamIdx >= 0)
1356 stream_component_close(mVideoStreamIdx);
1358 avformat_close_input(&mFormatCtx);
1362 ////////////////////////////////////////////////////////////////////////////////
1364 FFmpegExtractor::Track::Track(
1365 const sp<FFmpegExtractor> &extractor, sp<MetaData> meta, bool isAVC,
1366 AVStream *stream, PacketQueue *queue)
1367 : mExtractor(extractor),
1374 /* H.264 Video Types */
1376 mNal2AnnexB = false;
1382 CHECK(meta->findData(kKeyAVCC, &type, &data, &size));
1384 const uint8_t *ptr = (const uint8_t *)data;
1387 CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
1389 // The number of bytes used to encode the length of a NAL unit.
1390 mNALLengthSize = 1 + (ptr[4] & 3);
1392 LOGV("the stream is AVC, the length of a NAL unit: %d", mNALLengthSize);
1398 mMediaType = mStream->codec->codec_type;
1399 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1402 FFmpegExtractor::Track::~Track() {
1405 status_t FFmpegExtractor::Track::start(MetaData *params) {
1406 Mutex::Autolock autoLock(mLock);
1407 //mExtractor->startReaderThread();
1411 status_t FFmpegExtractor::Track::stop() {
1412 Mutex::Autolock autoLock(mLock);
1413 mExtractor->stopReaderThread();
1417 sp<MetaData> FFmpegExtractor::Track::getFormat() {
1418 Mutex::Autolock autoLock(mLock);
1423 status_t FFmpegExtractor::Track::read(
1424 MediaBuffer **buffer, const ReadOptions *options) {
1427 Mutex::Autolock autoLock(mLock);
1430 bool seeking = false;
1431 bool waitKeyPkt = false;
1432 ReadOptions::SeekMode mode;
1433 int64_t pktTS = AV_NOPTS_VALUE;
1434 int64_t seekTimeUs = AV_NOPTS_VALUE;
1437 status_t status = OK;
1439 if (options && options->getSeekTo(&seekTimeUs, &mode)) {
1440 LOGV("~~~%s seekTimeUs: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1441 /* add the stream start time */
1442 if (mStream->start_time != AV_NOPTS_VALUE)
1443 seekTimeUs += mStream->start_time * av_q2d(mStream->time_base) * 1000000;
1444 LOGV("~~~%s seekTimeUs[+startTime]: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1446 if (mExtractor->stream_seek(seekTimeUs, mMediaType) == SEEK)
1451 if (mExtractor->packet_queue_get(mQueue, &pkt, 1) < 0) {
1452 mExtractor->reachedEOS(mMediaType);
1453 return ERROR_END_OF_STREAM;
1457 if (pkt.data != flush_pkt.data) {
1458 av_free_packet(&pkt);
1462 #if WAIT_KEY_PACKET_AFTER_SEEK
1468 if (pkt.data == flush_pkt.data) {
1469 LOGV("read %s flush pkt", av_get_media_type_string(mMediaType));
1470 av_free_packet(&pkt);
1471 mFirstKeyPktTimestamp = AV_NOPTS_VALUE;
1473 } else if (pkt.data == NULL && pkt.size == 0) {
1474 LOGV("read %s eos pkt", av_get_media_type_string(mMediaType));
1475 av_free_packet(&pkt);
1476 mExtractor->reachedEOS(mMediaType);
1477 return ERROR_END_OF_STREAM;
1480 key = pkt.flags & AV_PKT_FLAG_KEY ? 1 : 0;
1483 if (pkt.pts == AV_NOPTS_VALUE)
1488 LOGV("drop the no key packet");
1489 av_free_packet(&pkt);
1492 LOGV("~~~~~~ got the key packet");
1497 if (mFirstKeyPktTimestamp == AV_NOPTS_VALUE) {
1498 // update the first key timestamp
1499 mFirstKeyPktTimestamp = pktTS;
1502 if (pktTS < mFirstKeyPktTimestamp) {
1503 LOGV("drop the packet with the backward timestamp, maybe them are B-frames after I-frame ^_^");
1504 av_free_packet(&pkt);
1508 MediaBuffer *mediaBuffer = new MediaBuffer(pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
1509 mediaBuffer->meta_data()->clear();
1510 mediaBuffer->set_range(0, pkt.size);
1511 #if DISABLE_NAL_TO_ANNEXB
1512 mNal2AnnexB = false;
1514 if (mIsAVC && mNal2AnnexB) {
1515 /* Convert H.264 NAL format to annex b */
1516 if (mNALLengthSize >= 3 && mNALLengthSize <= 4 )
1518 uint8_t *dst = (uint8_t *)mediaBuffer->data();
1520 /* This only works for NAL sizes 3-4 */
1521 size_t len = pkt.size, i;
1522 uint8_t *ptr = pkt.data;
1523 while (len >= mNALLengthSize) {
1524 uint32_t nal_len = 0;
1525 for( i = 0; i < mNALLengthSize; i++ ) {
1526 nal_len = (nal_len << 8) | ptr[i];
1529 dst[mNALLengthSize - 1] = 1;
1530 if (nal_len > INT_MAX || nal_len > (unsigned int)len) {
1531 status = ERROR_MALFORMED;
1534 dst += mNALLengthSize;
1535 ptr += mNALLengthSize;
1536 len -= mNALLengthSize;
1538 memcpy(dst, ptr, nal_len);
1545 status = ERROR_MALFORMED;
1549 LOGV("status != OK");
1550 mediaBuffer->release();
1552 av_free_packet(&pkt);
1553 return ERROR_MALFORMED;
1556 memcpy(mediaBuffer->data(), pkt.data, pkt.size);
1559 int64_t start_time = mStream->start_time != AV_NOPTS_VALUE ? mStream->start_time : 0;
1560 timeUs = (int64_t)((pktTS - start_time) * av_q2d(mStream->time_base) * 1000000);
1563 LOGV("read %s pkt, size: %d, key: %d, pts: %lld, dts: %lld, timeUs[-startTime]: %llu us (%.2f secs)",
1564 av_get_media_type_string(mMediaType), pkt.size, key, pkt.pts, pkt.dts, timeUs, timeUs/1E6);
1567 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
1568 mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, key);
1570 *buffer = mediaBuffer;
1572 av_free_packet(&pkt);
1577 ////////////////////////////////////////////////////////////////////////////////
1579 // LegacySniffFFMPEG
1581 const char *extension;
1582 const char *container;
1585 static extmap FILE_EXTS[] = {
1586 {".mp4", MEDIA_MIMETYPE_CONTAINER_MPEG4},
1587 {".3gp", MEDIA_MIMETYPE_CONTAINER_MPEG4},
1588 {".mp3", MEDIA_MIMETYPE_AUDIO_MPEG},
1589 {".mov", MEDIA_MIMETYPE_CONTAINER_MOV},
1590 {".mkv", MEDIA_MIMETYPE_CONTAINER_MATROSKA},
1591 {".ts", MEDIA_MIMETYPE_CONTAINER_TS},
1592 {".avi", MEDIA_MIMETYPE_CONTAINER_AVI},
1593 {".asf", MEDIA_MIMETYPE_CONTAINER_ASF},
1594 {".rm ", MEDIA_MIMETYPE_CONTAINER_RM},
1596 {".wmv", MEDIA_MIMETYPE_CONTAINER_WMV},
1597 {".wma", MEDIA_MIMETYPE_CONTAINER_WMA},
1598 {".mpg", MEDIA_MIMETYPE_CONTAINER_MPG},
1599 {".flv", MEDIA_MIMETYPE_CONTAINER_FLV},
1600 {".divx", MEDIA_MIMETYPE_CONTAINER_DIVX},
1601 {".mp2", MEDIA_MIMETYPE_CONTAINER_MP2},
1602 {".ape", MEDIA_MIMETYPE_CONTAINER_APE},
1603 {".ra", MEDIA_MIMETYPE_CONTAINER_RA},
1607 const char *LegacySniffFFMPEG(const char * uri)
1610 const char *container = NULL;
1612 LOGI("list the file extensions suppoted by ffmpeg: ");
1613 LOGI("========================================");
1614 for (i = 0; i < NELEM(FILE_EXTS); ++i) {
1615 LOGV("file_exts[%02d]: %s", i, FILE_EXTS[i].extension);
1617 LOGI("========================================");
1619 int lenURI = strlen(uri);
1620 for (i = 0; i < NELEM(FILE_EXTS); ++i) {
1621 int len = strlen(FILE_EXTS[i].extension);
1622 int start = lenURI - len;
1624 if (!av_strncasecmp(uri + start, FILE_EXTS[i].extension, len)) {
1625 container = FILE_EXTS[i].container;
1634 // BetterSniffFFMPEG
1637 const char *container;
1640 static formatmap FILE_FORMATS[] = {
1641 {"mpegts", MEDIA_MIMETYPE_CONTAINER_TS},
1642 {"mov,mp4,m4a,3gp,3g2,mj2", MEDIA_MIMETYPE_CONTAINER_MOV},
1643 {"asf", MEDIA_MIMETYPE_CONTAINER_ASF},
1644 {"rm", MEDIA_MIMETYPE_CONTAINER_RM},
1647 const char *BetterSniffFFMPEG(const char * uri)
1650 const char *container = NULL;
1651 AVFormatContext *ic = NULL;
1653 status_t status = initFFmpeg();
1655 LOGE("could not init ffmpeg");
1659 ic = avformat_alloc_context();
1660 avformat_open_input(&ic, uri, NULL, NULL);
1662 av_dump_format(ic, 0, uri, 0);
1664 LOGI("FFmpegExtrator, uri: %s, format_name: %s, format_long_name: %s", uri, ic->iformat->name, ic->iformat->long_name);
1666 LOGI("list the format suppoted by ffmpeg: ");
1667 LOGI("========================================");
1668 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1669 LOGV("format_names[%02d]: %s", i, FILE_FORMATS[i].format);
1671 LOGI("========================================");
1673 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1674 int len = strlen(FILE_FORMATS[i].format);
1675 if (!av_strncasecmp(ic->iformat->name, FILE_FORMATS[i].format, len)) {
1676 container = FILE_FORMATS[i].container;
1681 avformat_close_input(&ic);
1688 const sp<DataSource> &source, String8 *mimeType, float *confidence,
1689 sp<AMessage> *meta) {
1690 LOGV("SniffFFMPEG");
1691 const char *uri, *container = NULL;
1693 uri = source->getNamURI();
1698 LOGI("ffmpeg uri: %s", uri);
1700 container = BetterSniffFFMPEG(uri);
1702 LOGW("sniff through LegacySniffFFMPEG, only check the file extension");
1703 container = LegacySniffFFMPEG(uri);
1706 if (container == NULL)
1709 LOGV("found container: %s", container);
1711 *confidence = 0.88f; // Slightly larger than other extractor's confidence
1712 mimeType->setTo(container);
1714 /* use MPEG4Extractor(not extended extractor) for HTTP source only */
1715 if (!av_strcasecmp(container, MEDIA_MIMETYPE_CONTAINER_MPEG4)
1716 && (source->flags() & DataSource::kIsCachingDataSource)) {
1720 *meta = new AMessage;
1721 (*meta)->setString("extended-extractor", "extended-extractor");
1722 (*meta)->setString("extended-extractor-subtype", "ffmpegextractor");
1727 } // namespace android