| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| //#define LOG_NDEBUG 0 |
| #define LOG_TAG "MediaExtractor" |
| #include <utils/Log.h> |
| |
| #include "include/AMRExtractor.h" |
| #include "include/MP3Extractor.h" |
| #include "include/MPEG4Extractor.h" |
| #include "include/WAVExtractor.h" |
| |
| #include <media/stagefright/CachingDataSource.h> |
| #include <media/stagefright/DataSource.h> |
| #include <media/stagefright/FileSource.h> |
| #include <media/stagefright/HTTPDataSource.h> |
| #include <media/stagefright/MediaDefs.h> |
| #include <media/stagefright/MediaExtractor.h> |
| #include <utils/String8.h> |
| |
| namespace android { |
| |
| // static |
| sp<MediaExtractor> MediaExtractor::Create( |
| const sp<DataSource> &source, const char *mime) { |
| String8 tmp; |
| if (mime == NULL) { |
| float confidence; |
| if (!source->sniff(&tmp, &confidence)) { |
| LOGE("FAILED to autodetect media content."); |
| |
| return NULL; |
| } |
| |
| mime = tmp.string(); |
| LOGV("Autodetected media content as '%s' with confidence %.2f", |
| mime, confidence); |
| } |
| |
| if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4) |
| || !strcasecmp(mime, "audio/mp4")) { |
| return new MPEG4Extractor(source); |
| } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_MPEG)) { |
| return new MP3Extractor(source); |
| } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AMR_NB) |
| || !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AMR_WB)) { |
| return new AMRExtractor(source); |
| } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WAV)) { |
| return new WAVExtractor(source); |
| } |
| |
| return NULL; |
| } |
| |
| // static |
| sp<MediaExtractor> MediaExtractor::CreateFromURI( |
| const char *uri, const char *mime) { |
| sp<DataSource> source; |
| if (!strncasecmp("file://", uri, 7)) { |
| source = new FileSource(uri + 7); |
| } else if (!strncasecmp("http://", uri, 7)) { |
| source = new HTTPDataSource(uri); |
| source = new CachingDataSource(source, 64 * 1024, 10); |
| } else { |
| // Assume it's a filename. |
| source = new FileSource(uri); |
| } |
| |
| if (source == NULL || source->initCheck() != OK) { |
| return NULL; |
| } |
| |
| return Create(source, mime); |
| } |
| |
| } // namespace android |