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 "ffmpeg_utils/ffmpeg_utils.h"
41 #include "FFmpegExtractor.h"
43 #define DEBUG_READ_ENTRY 0
44 #define DIABLE_VIDEO 0
45 #define DIABLE_AUDIO 0
46 #define WAIT_KEY_PACKET_AFTER_SEEK 1
47 #define DISABLE_NAL_TO_ANNEXB 0
49 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
50 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
52 #define EXTRACTOR_MAX_PROBE_PACKETS 200
54 #define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE)
61 static AVPacket flush_pkt;
65 struct FFmpegExtractor::Track : public MediaSource {
66 Track(const sp<FFmpegExtractor> &extractor, sp<MetaData> meta, bool isAVC,
67 AVStream *stream, PacketQueue *queue);
69 virtual status_t start(MetaData *params);
70 virtual status_t stop();
71 virtual sp<MetaData> getFormat();
73 virtual status_t read(
74 MediaBuffer **buffer, const ReadOptions *options);
80 friend struct FFmpegExtractor;
82 sp<FFmpegExtractor> mExtractor;
85 enum AVMediaType mMediaType;
90 size_t mNALLengthSize;
96 DISALLOW_EVIL_CONSTRUCTORS(Track);
99 ////////////////////////////////////////////////////////////////////////////////
101 FFmpegExtractor::FFmpegExtractor(const sp<DataSource> &source)
102 : mDataSource(source),
103 mReaderThreadStarted(false),
104 mInitCheck(NO_INIT) {
105 LOGV("FFmpegExtractor::FFmpegExtractor");
108 const char *url = mDataSource->getNamURI();
110 LOGI("url is error!");
114 if (!strcmp(url, "-")) {
115 av_strlcpy(mFilename, "pipe:", strlen("pipe:") + 1);
117 av_strlcpy(mFilename, url, strlen(url) + 1);
119 LOGI("url: %s, mFilename: %s", url, mFilename);
123 LOGE("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 LOGV("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 LOGV("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 LOGV("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 LOGV("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 LOGV("FFmpegExtractor::getMetaData");
187 if (mInitCheck != OK) {
191 sp<MetaData> meta = new MetaData;
193 meta->setCString(kKeyMIMEType, "video/ffmpeg");
198 uint32_t FFmpegExtractor::flags() const {
199 LOGV("FFmpegExtractor::flags");
201 if (mInitCheck != OK) {
205 uint32_t flags = CAN_PAUSE;
207 if (mFormatCtx->duration != AV_NOPTS_VALUE) {
208 flags |= CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK;
214 void FFmpegExtractor::packet_queue_init(PacketQueue *q)
216 memset(q, 0, sizeof(PacketQueue));
217 q->mutex = SDL_CreateMutex();
218 q->cond = SDL_CreateCond();
219 packet_queue_put(q, &flush_pkt);
222 void FFmpegExtractor::packet_queue_flush(PacketQueue *q)
224 AVPacketList *pkt, *pkt1;
226 SDL_LockMutex(q->mutex);
227 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
229 av_free_packet(&pkt->pkt);
236 SDL_UnlockMutex(q->mutex);
239 void FFmpegExtractor::packet_queue_end(PacketQueue *q)
241 packet_queue_flush(q);
242 SDL_DestroyMutex(q->mutex);
243 SDL_DestroyCond(q->cond);
246 void FFmpegExtractor::packet_queue_abort(PacketQueue *q)
248 SDL_LockMutex(q->mutex);
250 q->abort_request = 1;
252 SDL_CondSignal(q->cond);
254 SDL_UnlockMutex(q->mutex);
257 int FFmpegExtractor::packet_queue_put(PacketQueue *q, AVPacket *pkt)
261 /* duplicate the packet */
262 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
265 pkt1 = (AVPacketList *)av_malloc(sizeof(AVPacketList));
271 SDL_LockMutex(q->mutex);
277 q->last_pkt->next = pkt1;
280 //q->size += pkt1->pkt.size + sizeof(*pkt1);
281 q->size += pkt1->pkt.size;
282 SDL_CondSignal(q->cond);
284 SDL_UnlockMutex(q->mutex);
288 /* packet queue handling */
289 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
290 int FFmpegExtractor::packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
295 SDL_LockMutex(q->mutex);
298 if (q->abort_request) {
305 q->first_pkt = pkt1->next;
309 //q->size -= pkt1->pkt.size + sizeof(*pkt1);
310 q->size -= pkt1->pkt.size;
319 SDL_CondWait(q->cond, q->mutex);
322 SDL_UnlockMutex(q->mutex);
326 static void EncodeSize14(uint8_t **_ptr, size_t size) {
327 CHECK_LE(size, 0x3fff);
329 uint8_t *ptr = *_ptr;
331 *ptr++ = 0x80 | (size >> 7);
332 *ptr++ = size & 0x7f;
337 static sp<ABuffer> MakeMPEGVideoESDS(const sp<ABuffer> &csd) {
338 sp<ABuffer> esds = new ABuffer(csd->size() + 25);
340 uint8_t *ptr = esds->data();
342 EncodeSize14(&ptr, 22 + csd->size());
344 *ptr++ = 0x00; // ES_ID
347 *ptr++ = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag
350 EncodeSize14(&ptr, 16 + csd->size());
352 *ptr++ = 0x40; // Audio ISO/IEC 14496-3
354 for (size_t i = 0; i < 12; ++i) {
359 EncodeSize14(&ptr, csd->size());
361 memcpy(ptr, csd->data(), csd->size());
366 // Returns the sample rate based on the sampling frequency index
367 static uint32_t get_sample_rate(const uint8_t sf_index)
369 static const uint32_t sample_rates[] =
371 96000, 88200, 64000, 48000, 44100, 32000,
372 24000, 22050, 16000, 12000, 11025, 8000
375 if (sf_index < sizeof(sample_rates) / sizeof(sample_rates[0])) {
376 return sample_rates[sf_index];
382 int FFmpegExtractor::check_extradata(AVCodecContext *avctx)
385 bool *defersToCreateTrack;
386 AVBitStreamFilterContext **bsfc;
389 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
391 defersToCreateTrack = &mDefersToCreateVideoTrack;
392 } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO){
394 defersToCreateTrack = &mDefersToCreateAudioTrack;
398 if (avctx->codec_id == CODEC_ID_MP3 ||
399 avctx->codec_id == CODEC_ID_MP1 ||
400 avctx->codec_id == CODEC_ID_MP2 ||
401 avctx->codec_id == CODEC_ID_AC3 ||
402 avctx->codec_id == CODEC_ID_H263 ||
403 avctx->codec_id == CODEC_ID_H263P ||
404 avctx->codec_id == CODEC_ID_H263I ||
405 avctx->codec_id == CODEC_ID_WMV1)
408 // is extradata compatible with android?
409 if (avctx->codec_id != CODEC_ID_AAC) {
410 int is_compatible = is_extradata_compatible_with_android(avctx);
411 if (!is_compatible) {
412 LOGI("%s extradata is not compatible with android, should to extract it from bitstream",
413 av_get_media_type_string(avctx->codec_type));
414 *defersToCreateTrack = true;
415 *bsfc = NULL; // H264 don't need bsfc, only AAC?
421 if (avctx->codec_id == CODEC_ID_AAC) {
422 name = "aac_adtstoasc";
425 if (avctx->extradata_size <= 0) {
426 LOGI("No %s extradata found, should to extract it from bitstream",
427 av_get_media_type_string(avctx->codec_type));
428 *defersToCreateTrack = true;
429 //CHECK(name != NULL);
430 if (!*bsfc && name) {
431 *bsfc = av_bitstream_filter_init(name);
433 LOGE("Cannot open the %s BSF!", name);
434 *defersToCreateTrack = false;
437 LOGV("open the %s bsf", name);
448 int FFmpegExtractor::stream_component_open(int stream_index)
450 AVCodecContext *avctx;
453 bool supported = false;
459 LOGI("stream_index: %d", stream_index);
460 if (stream_index < 0 || stream_index >= mFormatCtx->nb_streams)
462 avctx = mFormatCtx->streams[stream_index]->codec;
464 switch(avctx->codec_id) {
475 case CODEC_ID_MPEG2VIDEO:
488 LOGE("unsupport the codec, id: 0x%0x", avctx->codec_id);
491 LOGV("support the codec");
494 ssize_t index = mTracks.indexOfKey(stream_index);
497 LOGE("this track already exists");
501 mFormatCtx->streams[stream_index]->discard = AVDISCARD_DEFAULT;
504 av_get_codec_tag_string(tagbuf, sizeof(tagbuf), avctx->codec_tag);
505 LOGV("Tag %s/0x%08x with codec id '%d'\n", tagbuf, avctx->codec_tag, avctx->codec_id);
507 switch (avctx->codec_type) {
508 case AVMEDIA_TYPE_VIDEO:
509 if (mVideoStreamIdx == -1)
510 mVideoStreamIdx = stream_index;
511 if (mVideoStream == NULL)
512 mVideoStream = mFormatCtx->streams[stream_index];
513 if (!mVideoQInited) {
514 packet_queue_init(&mVideoQ);
515 mVideoQInited = true;
518 ret = check_extradata(avctx);
521 // disable the stream
522 mVideoStreamIdx = -1;
524 packet_queue_end(&mVideoQ);
525 mVideoQInited = false;
526 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
531 if (avctx->extradata) {
532 LOGV("video stream extradata:");
533 hexdump(avctx->extradata, avctx->extradata_size);
535 LOGV("video stream no extradata, but we can ignore it.");
540 switch(avctx->codec_id) {
544 * http://msdn.microsoft.com/en-us/library/dd757808(v=vs.85).aspx
546 //if (avctx->codec_tag && avctx->codec_tag == AV_RL32("avc1")) {
547 if (avctx->extradata[0] == 1 /* configurationVersion */) {
548 // H.264 bitstream without start codes.
552 if (avctx->width == 0 || avctx->height == 0) {
553 int32_t width, height;
554 sp<ABuffer> seqParamSet = new ABuffer(avctx->extradata_size - 8);
555 memcpy(seqParamSet->data(), avctx->extradata + 8, avctx->extradata_size - 8);
556 FindAVCDimensions(seqParamSet, &width, &height);
557 avctx->width = width;
558 avctx->height = height;
561 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
562 meta->setData(kKeyAVCC, kTypeAVCC, avctx->extradata, avctx->extradata_size);
564 // H.264 bitstream with start codes.
568 /* set NULL to release meta as we will new a meta in MakeAVCCodecSpecificData() fxn */
572 sp<ABuffer> buffer = new ABuffer(avctx->extradata_size);
573 memcpy(buffer->data(), avctx->extradata, avctx->extradata_size);
574 meta = MakeAVCCodecSpecificData(buffer);
579 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
581 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
582 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
583 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
584 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
591 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
593 case CODEC_ID_MPEG2VIDEO:
595 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
597 sp<ABuffer> csd = new ABuffer(avctx->extradata_size);
598 memcpy(csd->data(), avctx->extradata, avctx->extradata_size);
599 sp<ABuffer> esds = MakeMPEGVideoESDS(csd);
600 meta->setData(kKeyESDS, kTypeESDS, esds->data(), esds->size());
605 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV12);
606 meta->setData(kKeyESDS, kTypeESDS, avctx->extradata, avctx->extradata_size);
610 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV12);
614 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_WMV12);
615 meta->setData(kKeyESDS, kTypeESDS, avctx->extradata, avctx->extradata_size);
618 CHECK(!"Should not be here. Unsupported codec.");
622 LOGI("width: %d, height: %d, bit_rate: %d", avctx->width, avctx->height, avctx->bit_rate);
624 meta->setInt32(kKeyWidth, avctx->width);
625 meta->setInt32(kKeyHeight, avctx->height);
626 if (avctx->bit_rate > 0)
627 meta->setInt32(kKeyBitRate, avctx->bit_rate);
628 if (mFormatCtx->duration != AV_NOPTS_VALUE)
629 meta->setInt64(kKeyDuration, mFormatCtx->duration);
631 LOGV("create a video track");
633 stream_index, new Track(this, meta, isAVC, mVideoStream, &mVideoQ));
635 mDefersToCreateVideoTrack = false;
638 case AVMEDIA_TYPE_AUDIO:
639 if (mAudioStreamIdx == -1)
640 mAudioStreamIdx = stream_index;
641 if (mAudioStream == NULL)
642 mAudioStream = mFormatCtx->streams[stream_index];
643 if (!mAudioQInited) {
644 packet_queue_init(&mAudioQ);
645 mAudioQInited = true;
648 ret = check_extradata(avctx);
651 // disable the stream
652 mAudioStreamIdx = -1;
654 packet_queue_end(&mAudioQ);
655 mAudioQInited = false;
656 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
661 if (avctx->extradata) {
662 LOGV("audio stream extradata:");
663 hexdump(avctx->extradata, avctx->extradata_size);
665 LOGV("audio stream no extradata, but we can ignore it.");
668 switch(avctx->codec_id) {
672 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
677 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
682 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
687 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
692 const uint8_t *header;
693 uint8_t profile, sf_index, channel;
695 header = avctx->extradata;
696 CHECK(header != NULL);
698 // AudioSpecificInfo follows
699 // oooo offf fccc c000
700 // o - audioObjectType
701 // f - samplingFreqIndex
703 profile = ((header[0] & 0xf8) >> 3) - 1;
704 sf_index = (header[0] & 0x07) << 1 | (header[1] & 0x80) >> 7;
705 sr = get_sample_rate(sf_index);
707 LOGE("unsupport the sample rate");
710 channel = (header[1] >> 3) & 0xf;
711 LOGV("profile: %d, sf_index: %d, channel: %d", profile, sf_index, channel);
713 meta = MakeAACCodecSpecificData(profile, sf_index, channel);
714 meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
717 CHECK(!"Should not be here. Unsupported codec.");
721 LOGI("bit_rate: %d, sample_rate: %d, channels: %d", avctx->bit_rate, avctx->sample_rate, avctx->channels);
723 meta->setInt32(kKeySampleRate, avctx->sample_rate);
724 meta->setInt32(kKeyChannelCount, avctx->channels);
725 meta->setInt32(kKeyBitRate, avctx->bit_rate);
726 if (mFormatCtx->duration != AV_NOPTS_VALUE)
727 meta->setInt64(kKeyDuration, mFormatCtx->duration);
729 if (avctx->codec_id != CODEC_ID_MP3 &&
730 avctx->codec_id != CODEC_ID_MP1 &&
731 avctx->codec_id != CODEC_ID_MP2 &&
732 avctx->codec_id != CODEC_ID_AC3) {
733 LOGV("audio meta esds:");
734 CHECK(meta->findData(kKeyESDS, &type, &data, &size));
738 LOGV("create a audio track");
740 stream_index, new Track(this, meta, false, mAudioStream, &mAudioQ));
742 mDefersToCreateAudioTrack = false;
745 case AVMEDIA_TYPE_SUBTITLE:
747 CHECK(!"Should not be here. Unsupported media type.");
750 CHECK(!"Should not be here. Unsupported media type.");
756 void FFmpegExtractor::stream_component_close(int stream_index)
758 AVCodecContext *avctx;
760 if (stream_index < 0 || stream_index >= mFormatCtx->nb_streams)
762 avctx = mFormatCtx->streams[stream_index]->codec;
764 switch (avctx->codec_type) {
765 case AVMEDIA_TYPE_VIDEO:
766 LOGV("packet_queue_abort videoq");
767 packet_queue_abort(&mVideoQ);
768 /* wait until the end */
769 while (!mAbortRequest && !mVideoEOSReceived) {
770 LOGV("wait for video received");
773 LOGV("packet_queue_end videoq");
774 packet_queue_end(&mVideoQ);
776 case AVMEDIA_TYPE_AUDIO:
777 LOGV("packet_queue_abort audioq");
778 packet_queue_abort(&mAudioQ);
779 while (!mAbortRequest && !mAudioEOSReceived) {
780 LOGV("wait for audio received");
783 LOGV("packet_queue_end audioq");
784 packet_queue_end(&mAudioQ);
786 case AVMEDIA_TYPE_SUBTITLE:
792 mFormatCtx->streams[stream_index]->discard = AVDISCARD_ALL;
793 switch (avctx->codec_type) {
794 case AVMEDIA_TYPE_VIDEO:
796 mVideoStreamIdx = -1;
798 av_bitstream_filter_close(mVideoBsfc);
802 case AVMEDIA_TYPE_AUDIO:
804 mAudioStreamIdx = -1;
806 av_bitstream_filter_close(mAudioBsfc);
810 case AVMEDIA_TYPE_SUBTITLE:
817 void FFmpegExtractor::reachedEOS(enum AVMediaType media_type)
819 Mutex::Autolock autoLock(mLock);
821 if (media_type == AVMEDIA_TYPE_VIDEO) {
822 mVideoEOSReceived = true;
823 } else if (media_type == AVMEDIA_TYPE_AUDIO) {
824 mAudioEOSReceived = true;
828 /* seek in the stream */
829 int FFmpegExtractor::stream_seek(int64_t pos, enum AVMediaType media_type)
831 Mutex::Autolock autoLock(mLock);
833 if (mVideoStreamIdx >= 0 &&
834 mAudioStreamIdx >= 0 &&
835 media_type == AVMEDIA_TYPE_AUDIO &&
836 !mVideoEOSReceived) {
841 if (mAudioStreamIdx >= 0)
842 packet_queue_flush(&mAudioQ);
843 if (mVideoStreamIdx >= 0)
844 packet_queue_flush(&mVideoQ);
847 mSeekFlags &= ~AVSEEK_FLAG_BYTE;
854 int FFmpegExtractor::decode_interrupt_cb(void *ctx)
856 FFmpegExtractor *extrator = static_cast<FFmpegExtractor *>(ctx);
857 return extrator->mAbortRequest;
860 void FFmpegExtractor::print_error_ex(const char *filename, int err)
863 const char *errbuf_ptr = errbuf;
865 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
866 errbuf_ptr = strerror(AVUNERROR(err));
867 LOGI("%s: %s\n", filename, errbuf_ptr);
870 void FFmpegExtractor::setFFmpegDefaultOpts()
884 mSeekByBytes = 0; /* seek by bytes 0=off 1=on -1=auto" */
885 mStartTime = AV_NOPTS_VALUE;
886 mDuration = AV_NOPTS_VALUE;
887 mSeekPos = AV_NOPTS_VALUE;
891 mVideoStreamIdx = -1;
892 mAudioStreamIdx = -1;
895 mVideoQInited = false;
896 mAudioQInited = false;
897 mDefersToCreateVideoTrack = false;
898 mDefersToCreateAudioTrack = false;
911 int FFmpegExtractor::initStreams()
916 int ret = 0, audio_ret = 0, video_ret = 0;
917 int pkt_in_play_range = 0;
918 AVDictionaryEntry *t;
921 int st_index[AVMEDIA_TYPE_NB] = {0};
922 int wanted_stream[AVMEDIA_TYPE_NB] = {0};
923 st_index[AVMEDIA_TYPE_AUDIO] = -1;
924 st_index[AVMEDIA_TYPE_VIDEO] = -1;
925 wanted_stream[AVMEDIA_TYPE_AUDIO] = -1;
926 wanted_stream[AVMEDIA_TYPE_VIDEO] = -1;
928 setFFmpegDefaultOpts();
930 status = initFFmpeg();
936 av_init_packet(&flush_pkt);
937 flush_pkt.data = (uint8_t *)"FLUSH";
940 mFormatCtx = avformat_alloc_context();
941 mFormatCtx->interrupt_callback.callback = decode_interrupt_cb;
942 mFormatCtx->interrupt_callback.opaque = this;
943 LOGV("mFilename: %s", mFilename);
944 err = avformat_open_input(&mFormatCtx, mFilename, NULL, &format_opts);
946 print_error_ex(mFilename, err);
950 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
951 LOGE("Option %s not found.\n", t->key);
952 //ret = AVERROR_OPTION_NOT_FOUND;
958 mFormatCtx->flags |= AVFMT_FLAG_GENPTS;
960 opts = setup_find_stream_info_opts(mFormatCtx, codec_opts);
961 orig_nb_streams = mFormatCtx->nb_streams;
963 err = avformat_find_stream_info(mFormatCtx, opts);
965 LOGE("%s: could not find codec parameters\n", mFilename);
969 for (i = 0; i < orig_nb_streams; i++)
970 av_dict_free(&opts[i]);
974 mFormatCtx->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
976 if (mSeekByBytes < 0)
977 mSeekByBytes = !!(mFormatCtx->iformat->flags & AVFMT_TS_DISCONT);
979 /* if seeking requested, we execute it */
980 if (mStartTime != AV_NOPTS_VALUE) {
983 timestamp = mStartTime;
984 /* add the stream start time */
985 if (mFormatCtx->start_time != AV_NOPTS_VALUE)
986 timestamp += mFormatCtx->start_time;
987 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, timestamp, INT64_MAX, 0);
989 LOGE("%s: could not seek to position %0.3f",
990 mFilename, (double)timestamp / AV_TIME_BASE);
995 for (i = 0; i < mFormatCtx->nb_streams; i++)
996 mFormatCtx->streams[i]->discard = AVDISCARD_ALL;
998 st_index[AVMEDIA_TYPE_VIDEO] =
999 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_VIDEO,
1000 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
1002 st_index[AVMEDIA_TYPE_AUDIO] =
1003 av_find_best_stream(mFormatCtx, AVMEDIA_TYPE_AUDIO,
1004 wanted_stream[AVMEDIA_TYPE_AUDIO],
1005 st_index[AVMEDIA_TYPE_VIDEO],
1008 av_dump_format(mFormatCtx, 0, mFilename, 0);
1011 if (mFormatCtx->duration != AV_NOPTS_VALUE) {
1012 int hours, mins, secs, us;
1013 secs = mFormatCtx->duration / AV_TIME_BASE;
1014 us = mFormatCtx->duration % AV_TIME_BASE;
1019 LOGI("the duration is %02d:%02d:%02d.%02d", hours, mins, secs, (100 * us) / AV_TIME_BASE);
1022 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
1023 audio_ret = stream_component_open(st_index[AVMEDIA_TYPE_AUDIO]);
1026 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
1027 video_ret = stream_component_open(st_index[AVMEDIA_TYPE_VIDEO]);
1030 if ( audio_ret < 0 && video_ret < 0) {
1031 LOGE("%s: could not open codecs\n", mFilename);
1042 void FFmpegExtractor::deInitStreams()
1045 avformat_close_input(&mFormatCtx);
1051 status_t FFmpegExtractor::startReaderThread() {
1052 LOGV("Starting reader thread");
1053 Mutex::Autolock autoLock(mLock);
1055 if (mReaderThreadStarted)
1058 pthread_attr_t attr;
1059 pthread_attr_init(&attr);
1060 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
1061 pthread_create(&mReaderThread, &attr, ReaderWrapper, this);
1062 pthread_attr_destroy(&attr);
1063 mReaderThreadStarted = true;
1064 LOGD("Reader thread started");
1069 void FFmpegExtractor::stopReaderThread() {
1070 LOGV("Stopping reader thread");
1071 Mutex::Autolock autoLock(mLock);
1073 if (!mReaderThreadStarted) {
1074 LOGD("Reader thread have been stopped");
1081 pthread_join(mReaderThread, &dummy);
1082 mReaderThreadStarted = false;
1083 LOGD("Reader thread stopped");
1087 void *FFmpegExtractor::ReaderWrapper(void *me) {
1088 ((FFmpegExtractor *)me)->readerEntry();
1093 void FFmpegExtractor::readerEntry() {
1095 AVPacket pkt1, *pkt = &pkt1;
1097 int pkt_in_play_range = 0;
1099 LOGV("FFmpegExtractor::readerEntry");
1101 mVideoEOSReceived = false;
1102 mAudioEOSReceived = false;
1108 if (mPaused != mLastPaused) {
1109 mLastPaused = mPaused;
1111 mReadPauseReturn = av_read_pause(mFormatCtx);
1113 av_read_play(mFormatCtx);
1115 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
1117 (!strcmp(mFormatCtx->iformat->name, "rtsp") ||
1118 (mFormatCtx->pb && !strncmp(mFilename, "mmsh:", 5)))) {
1119 /* wait 10 ms to avoid trying to get another packet */
1127 LOGV("readerEntry, mSeekReq: %d", mSeekReq);
1128 ret = avformat_seek_file(mFormatCtx, -1, INT64_MIN, mSeekPos, INT64_MAX, mSeekFlags);
1130 LOGE("%s: error while seeking", mFormatCtx->filename);
1132 if (mAudioStreamIdx >= 0) {
1133 packet_queue_flush(&mAudioQ);
1134 packet_queue_put(&mAudioQ, &flush_pkt);
1136 if (mVideoStreamIdx >= 0) {
1137 packet_queue_flush(&mVideoQ);
1138 packet_queue_put(&mVideoQ, &flush_pkt);
1145 /* if the queue are full, no need to read more */
1146 if ( mAudioQ.size + mVideoQ.size > MAX_QUEUE_SIZE
1147 || ( (mAudioQ .size > MIN_AUDIOQ_SIZE || mAudioStreamIdx < 0)
1148 && (mVideoQ .nb_packets > MIN_FRAMES || mVideoStreamIdx < 0))) {
1149 #if DEBUG_READ_ENTRY
1150 LOGV("readerEntry, is full, fuck");
1158 if (mVideoStreamIdx >= 0) {
1159 av_init_packet(pkt);
1162 pkt->stream_index = mVideoStreamIdx;
1163 packet_queue_put(&mVideoQ, pkt);
1165 if (mAudioStreamIdx >= 0) {
1166 av_init_packet(pkt);
1169 pkt->stream_index = mAudioStreamIdx;
1170 packet_queue_put(&mAudioQ, pkt);
1173 #if DEBUG_READ_ENTRY
1174 LOGV("readerEntry, eof = 1, mVideoQ.size: %d, mVideoQ.nb_packets: %d, mAudioQ.size: %d, mAudioQ.nb_packets: %d",
1175 mVideoQ.size, mVideoQ.nb_packets, mAudioQ.size, mAudioQ.nb_packets);
1177 if (mAudioQ.size + mVideoQ.size == 0) {
1178 if (mLoop != 1 && (!mLoop || --mLoop)) {
1179 if (mVideoStreamIdx >= 0) {
1180 stream_seek(mStartTime != AV_NOPTS_VALUE ? mStartTime : 0, AVMEDIA_TYPE_VIDEO);
1181 } else if (mAudioStreamIdx >= 0) {
1182 stream_seek(mStartTime != AV_NOPTS_VALUE ? mStartTime : 0, AVMEDIA_TYPE_AUDIO);
1184 } else if (mAutoExit) {
1193 ret = av_read_frame(mFormatCtx, pkt);
1196 if (ret == AVERROR_EOF || url_feof(mFormatCtx->pb))
1197 if (ret == AVERROR_EOF) {
1198 //LOGV("ret == AVERROR_EOF");
1200 if (url_feof(mFormatCtx->pb)) {
1201 //LOGV("url_feof(mFormatCtx->pb)");
1206 if (mFormatCtx->pb && mFormatCtx->pb->error) {
1207 LOGE("mFormatCtx->pb->error: %d", mFormatCtx->pb->error);
1214 if (pkt->stream_index == mVideoStreamIdx) {
1215 if (mDefersToCreateVideoTrack) {
1216 AVCodecContext *avctx = mFormatCtx->streams[mVideoStreamIdx]->codec;
1218 int i = parser_split(avctx, pkt->data, pkt->size);
1219 if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
1220 if (avctx->extradata)
1221 av_freep(&avctx->extradata);
1222 avctx->extradata_size= i;
1223 avctx->extradata = (uint8_t *)av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1224 if (!avctx->extradata) {
1225 //return AVERROR(ENOMEM);
1226 ret = AVERROR(ENOMEM);
1229 // sps + pps(there may be sei in it)
1230 memcpy(avctx->extradata, pkt->data, avctx->extradata_size);
1231 memset(avctx->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1233 av_free_packet(pkt);
1237 stream_component_open(mVideoStreamIdx);
1238 if (!mDefersToCreateVideoTrack)
1239 LOGI("probe packet counter: %d when create video track ok", mProbePkts);
1240 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1241 LOGI("probe packet counter to max: %d, create video track: %d",
1242 mProbePkts, !mDefersToCreateVideoTrack);
1244 } else if (pkt->stream_index == mAudioStreamIdx) {
1248 AVCodecContext *avctx = mFormatCtx->streams[mAudioStreamIdx]->codec;
1249 if (mAudioBsfc && pkt && pkt->data) {
1250 ret = av_bitstream_filter_filter(mAudioBsfc, avctx, NULL, &outbuf, &outbuf_size,
1251 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
1253 if (ret < 0 ||!outbuf_size) {
1254 av_free_packet(pkt);
1257 if (outbuf && outbuf != pkt->data) {
1258 memmove(pkt->data, outbuf, outbuf_size);
1259 pkt->size = outbuf_size;
1262 if (mDefersToCreateAudioTrack) {
1263 if (avctx->extradata_size <= 0) {
1264 av_free_packet(pkt);
1267 stream_component_open(mAudioStreamIdx);
1268 if (!mDefersToCreateAudioTrack)
1269 LOGI("probe packet counter: %d when create audio track ok", mProbePkts);
1270 if (mProbePkts == EXTRACTOR_MAX_PROBE_PACKETS)
1271 LOGI("probe packet counter to max: %d, create audio track: %d",
1272 mProbePkts, !mDefersToCreateAudioTrack);
1276 /* check if packet is in play range specified by user, then queue, otherwise discard */
1277 pkt_in_play_range = mDuration == AV_NOPTS_VALUE ||
1278 (pkt->pts - mFormatCtx->streams[pkt->stream_index]->start_time) *
1279 av_q2d(mFormatCtx->streams[pkt->stream_index]->time_base) -
1280 (double)(mStartTime != AV_NOPTS_VALUE ? mStartTime : 0) / 1000000
1281 <= ((double)mDuration / 1000000);
1282 if (pkt->stream_index == mAudioStreamIdx && pkt_in_play_range) {
1283 packet_queue_put(&mAudioQ, pkt);
1284 } else if (pkt->stream_index == mVideoStreamIdx && pkt_in_play_range) {
1285 packet_queue_put(&mVideoQ, pkt);
1287 av_free_packet(pkt);
1290 /* wait until the end */
1291 while (!mAbortRequest) {
1297 LOGI("reader thread goto end...");
1299 /* close each stream */
1300 if (mAudioStreamIdx >= 0)
1301 stream_component_close(mAudioStreamIdx);
1302 if (mVideoStreamIdx >= 0)
1303 stream_component_close(mVideoStreamIdx);
1305 avformat_close_input(&mFormatCtx);
1309 ////////////////////////////////////////////////////////////////////////////////
1311 FFmpegExtractor::Track::Track(
1312 const sp<FFmpegExtractor> &extractor, sp<MetaData> meta, bool isAVC,
1313 AVStream *stream, PacketQueue *queue)
1314 : mExtractor(extractor),
1321 /* H.264 Video Types */
1323 mNal2AnnexB = false;
1329 CHECK(meta->findData(kKeyAVCC, &type, &data, &size));
1331 const uint8_t *ptr = (const uint8_t *)data;
1334 CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
1336 // The number of bytes used to encode the length of a NAL unit.
1337 mNALLengthSize = 1 + (ptr[4] & 3);
1339 LOGV("the stream is AVC, the length of a NAL unit: %d", mNALLengthSize);
1345 mMediaType = mStream->codec->codec_type;
1348 FFmpegExtractor::Track::~Track() {
1351 status_t FFmpegExtractor::Track::start(MetaData *params) {
1352 Mutex::Autolock autoLock(mLock);
1353 //mExtractor->startReaderThread();
1357 status_t FFmpegExtractor::Track::stop() {
1358 Mutex::Autolock autoLock(mLock);
1359 mExtractor->stopReaderThread();
1363 sp<MetaData> FFmpegExtractor::Track::getFormat() {
1364 Mutex::Autolock autoLock(mLock);
1369 status_t FFmpegExtractor::Track::read(
1370 MediaBuffer **buffer, const ReadOptions *options) {
1373 Mutex::Autolock autoLock(mLock);
1376 bool seeking = false;
1377 bool waitKeyPkt = false;
1378 ReadOptions::SeekMode mode;
1379 int64_t pktTS = AV_NOPTS_VALUE;
1380 int64_t seekTimeUs = AV_NOPTS_VALUE;
1383 status_t status = OK;
1385 if (options && options->getSeekTo(&seekTimeUs, &mode)) {
1386 LOGV("~~~%s seekTimeUs: %lld, mode: %d", av_get_media_type_string(mMediaType), seekTimeUs, mode);
1387 if (mExtractor->stream_seek(seekTimeUs, mMediaType) == SEEK)
1392 if (mExtractor->packet_queue_get(mQueue, &pkt, 1) < 0) {
1393 mExtractor->reachedEOS(mMediaType);
1394 return ERROR_END_OF_STREAM;
1398 if (pkt.data != flush_pkt.data) {
1399 av_free_packet(&pkt);
1403 #if WAIT_KEY_PACKET_AFTER_SEEK
1409 if (pkt.data == flush_pkt.data) {
1410 LOGV("read %s flush pkt", av_get_media_type_string(mMediaType));
1411 av_free_packet(&pkt);
1413 } else if (pkt.data == NULL && pkt.size == 0) {
1414 LOGV("read %s eos pkt", av_get_media_type_string(mMediaType));
1415 av_free_packet(&pkt);
1416 mExtractor->reachedEOS(mMediaType);
1417 return ERROR_END_OF_STREAM;
1420 key = pkt.flags & AV_PKT_FLAG_KEY ? 1 : 0;
1424 LOGV("drop the no key packet");
1425 av_free_packet(&pkt);
1428 LOGV("~~~~~~ got the key packet");
1433 MediaBuffer *mediaBuffer = new MediaBuffer(pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
1434 mediaBuffer->meta_data()->clear();
1435 mediaBuffer->set_range(0, pkt.size);
1436 #if DISABLE_NAL_TO_ANNEXB
1437 mNal2AnnexB = false;
1439 if (mIsAVC && mNal2AnnexB) {
1440 /* Convert H.264 NAL format to annex b */
1441 if (mNALLengthSize >= 3 && mNALLengthSize <= 4 )
1443 uint8_t *dst = (uint8_t *)mediaBuffer->data();
1445 /* This only works for NAL sizes 3-4 */
1446 size_t len = pkt.size, i;
1447 uint8_t *ptr = pkt.data;
1448 while (len >= mNALLengthSize) {
1449 uint32_t nal_len = 0;
1450 for( i = 0; i < mNALLengthSize; i++ ) {
1451 nal_len = (nal_len << 8) | ptr[i];
1454 dst[mNALLengthSize - 1] = 1;
1455 if (nal_len > INT_MAX || nal_len > (unsigned int)len) {
1456 status = ERROR_MALFORMED;
1459 dst += mNALLengthSize;
1460 ptr += mNALLengthSize;
1461 len -= mNALLengthSize;
1463 memcpy(dst, ptr, nal_len);
1470 status = ERROR_MALFORMED;
1474 LOGV("status != OK");
1475 mediaBuffer->release();
1477 av_free_packet(&pkt);
1478 return ERROR_MALFORMED;
1481 memcpy(mediaBuffer->data(), pkt.data, pkt.size);
1486 if (pkt.pts == AV_NOPTS_VALUE)
1490 // TODO, Stagefright can't handle negative timestamps
1491 // if needed, work around this by offsetting them manually?
1496 timeUs = (int64_t)(pktTS * av_q2d(mStream->time_base) * 1000000);
1499 LOGV("read %s pkt, size: %d, key: %d, pts: %lld, dts: %lld, timeUs: %llu us (%.2f secs)",
1500 av_get_media_type_string(mMediaType), pkt.size, key, pkt.pts, pkt.dts, timeUs, timeUs/1E6);
1504 // TODO, Stagefright can't handle negative timestamps
1505 // if needed, work around this by offsetting them manually?
1510 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
1511 mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, key);
1513 *buffer = mediaBuffer;
1515 av_free_packet(&pkt);
1520 ////////////////////////////////////////////////////////////////////////////////
1522 // LegacySniffFFMPEG
1524 const char *extension;
1525 const char *container;
1528 static extmap FILE_EXTS[] = {
1529 {".mp4", MEDIA_MIMETYPE_CONTAINER_MPEG4},
1530 {".3gp", MEDIA_MIMETYPE_CONTAINER_MPEG4},
1531 {".mp3", MEDIA_MIMETYPE_AUDIO_MPEG},
1532 {".mov", MEDIA_MIMETYPE_CONTAINER_MOV},
1533 {".mkv", MEDIA_MIMETYPE_CONTAINER_MATROSKA},
1534 {".ts", MEDIA_MIMETYPE_CONTAINER_TS},
1535 {".avi", MEDIA_MIMETYPE_CONTAINER_AVI},
1536 {".asf", MEDIA_MIMETYPE_CONTAINER_ASF},
1538 {".wmv", MEDIA_MIMETYPE_CONTAINER_WMV},
1539 {".wma", MEDIA_MIMETYPE_CONTAINER_WMA},
1540 {".mpg", MEDIA_MIMETYPE_CONTAINER_MPG},
1541 {".flv", MEDIA_MIMETYPE_CONTAINER_FLV},
1542 {".divx", MEDIA_MIMETYPE_CONTAINER_DIVX},
1543 {".mp2", MEDIA_MIMETYPE_CONTAINER_MP2},
1544 {".ape", MEDIA_MIMETYPE_CONTAINER_APE},
1545 {".rm ", MEDIA_MIMETYPE_CONTAINER_RM},
1546 {".ra", MEDIA_MIMETYPE_CONTAINER_RA},
1550 const char *LegacySniffFFMPEG(const char * uri)
1553 const char *container = NULL;
1555 LOGI("list the file extensions suppoted by ffmpeg: ");
1556 LOGI("========================================");
1557 for (i = 0; i < NELEM(FILE_EXTS); ++i) {
1558 LOGV("file_exts[%02d]: %s", i, FILE_EXTS[i].extension);
1560 LOGI("========================================");
1562 int lenURI = strlen(uri);
1563 for (i = 0; i < NELEM(FILE_EXTS); ++i) {
1564 int len = strlen(FILE_EXTS[i].extension);
1565 int start = lenURI - len;
1567 if (!av_strncasecmp(uri + start, FILE_EXTS[i].extension, len)) {
1568 container = FILE_EXTS[i].container;
1577 // BetterSniffFFMPEG
1580 const char *container;
1583 static formatmap FILE_FORMATS[] = {
1584 {"mpegts", MEDIA_MIMETYPE_CONTAINER_TS},
1585 {"mov,mp4,m4a,3gp,3g2,mj2", MEDIA_MIMETYPE_CONTAINER_MOV},
1586 {"asf", MEDIA_MIMETYPE_CONTAINER_ASF},
1589 const char *BetterSniffFFMPEG(const char * uri)
1592 const char *container = NULL;
1593 AVFormatContext *ic = NULL;
1595 status_t status = initFFmpeg();
1597 LOGE("could not init ffmpeg");
1601 ic = avformat_alloc_context();
1602 avformat_open_input(&ic, uri, NULL, NULL);
1604 av_dump_format(ic, 0, uri, 0);
1606 LOGI("FFmpegExtrator, uri: %s, format_name: %s, format_long_name: %s", uri, ic->iformat->name, ic->iformat->long_name);
1608 LOGI("list the format suppoted by ffmpeg: ");
1609 LOGI("========================================");
1610 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1611 LOGV("format_names[%02d]: %s", i, FILE_FORMATS[i].format);
1613 LOGI("========================================");
1615 for (i = 0; i < NELEM(FILE_FORMATS); ++i) {
1616 int len = strlen(FILE_FORMATS[i].format);
1617 if (!av_strncasecmp(ic->iformat->name, FILE_FORMATS[i].format, len)) {
1618 container = FILE_FORMATS[i].container;
1623 avformat_close_input(&ic);
1630 const sp<DataSource> &source, String8 *mimeType, float *confidence,
1631 sp<AMessage> *meta) {
1632 LOGV("SniffFFMPEG");
1633 const char *uri, *container = NULL;
1635 uri = source->getNamURI();
1640 LOGI("ffmpeg uri: %s", uri);
1642 container = BetterSniffFFMPEG(uri);
1644 LOGW("sniff through LegacySniffFFMPEG, only check the file extension");
1645 container = LegacySniffFFMPEG(uri);
1648 if (container == NULL)
1651 LOGV("found container: %s", container);
1653 *confidence = 0.88f; // Slightly larger than other extractor's confidence
1654 mimeType->setTo(container);
1656 /* use MPEG4Extractor(not extended extractor) for HTTP source only */
1657 if (!av_strcasecmp(container, MEDIA_MIMETYPE_CONTAINER_MPEG4)
1658 && (source->flags() & DataSource::kIsCachingDataSource)) {
1662 *meta = new AMessage;
1663 (*meta)->setString("extended-extractor", "extended-extractor");
1664 (*meta)->setString("extended-extractor-subtype", "ffmpegextractor");
1669 } // namespace android