diff options
Diffstat (limited to 'media/libstagefright/codecs/on2/dec/VPXDecoder.cpp')
-rw-r--r-- | media/libstagefright/codecs/on2/dec/VPXDecoder.cpp | 277 |
1 files changed, 0 insertions, 277 deletions
diff --git a/media/libstagefright/codecs/on2/dec/VPXDecoder.cpp b/media/libstagefright/codecs/on2/dec/VPXDecoder.cpp deleted file mode 100644 index 489e5ad..0000000 --- a/media/libstagefright/codecs/on2/dec/VPXDecoder.cpp +++ /dev/null @@ -1,277 +0,0 @@ -/* - * Copyright (C) 2010 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 "VPXDecoder" -#include <utils/Log.h> - -#include "VPXDecoder.h" - -#include <OMX_Component.h> - -#include <media/stagefright/MediaBufferGroup.h> -#include <media/stagefright/MediaDebug.h> -#include <media/stagefright/MediaDefs.h> -#include <media/stagefright/MediaErrors.h> -#include <media/stagefright/MetaData.h> -#include <media/stagefright/Utils.h> - -#include "vpx/vpx_decoder.h" -#include "vpx/vpx_codec.h" -#include "vpx/vp8dx.h" - -namespace android { - -VPXDecoder::VPXDecoder(const sp<MediaSource> &source) - : mSource(source), - mStarted(false), - mBufferSize(0), - mCtx(NULL), - mBufferGroup(NULL), - mTargetTimeUs(-1) { - sp<MetaData> inputFormat = source->getFormat(); - const char *mime; - CHECK(inputFormat->findCString(kKeyMIMEType, &mime)); - CHECK(!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_VPX)); - - CHECK(inputFormat->findInt32(kKeyWidth, &mWidth)); - CHECK(inputFormat->findInt32(kKeyHeight, &mHeight)); - - mBufferSize = (mWidth * mHeight * 3) / 2; - - mFormat = new MetaData; - mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RAW); - mFormat->setInt32(kKeyWidth, mWidth); - mFormat->setInt32(kKeyHeight, mHeight); - mFormat->setInt32(kKeyColorFormat, OMX_COLOR_FormatYUV420Planar); - mFormat->setCString(kKeyDecoderComponent, "VPXDecoder"); - - int64_t durationUs; - if (inputFormat->findInt64(kKeyDuration, &durationUs)) { - mFormat->setInt64(kKeyDuration, durationUs); - } -} - -VPXDecoder::~VPXDecoder() { - if (mStarted) { - stop(); - } -} - -status_t VPXDecoder::start(MetaData *) { - if (mStarted) { - return UNKNOWN_ERROR; - } - - status_t err = mSource->start(); - - if (err != OK) { - return err; - } - - mCtx = new vpx_codec_ctx_t; - vpx_codec_err_t vpx_err; - if ((vpx_err = vpx_codec_dec_init( - (vpx_codec_ctx_t *)mCtx, &vpx_codec_vp8_dx_algo, NULL, 0))) { - LOGE("on2 decoder failed to initialize. (%d)", vpx_err); - - mSource->stop(); - - return UNKNOWN_ERROR; - } - - mBufferGroup = new MediaBufferGroup; - mBufferGroup->add_buffer(new MediaBuffer(mBufferSize)); - mBufferGroup->add_buffer(new MediaBuffer(mBufferSize)); - - mTargetTimeUs = -1; - - mStarted = true; - - return OK; -} - -status_t VPXDecoder::stop() { - if (!mStarted) { - return UNKNOWN_ERROR; - } - - delete mBufferGroup; - mBufferGroup = NULL; - - vpx_codec_destroy((vpx_codec_ctx_t *)mCtx); - delete (vpx_codec_ctx_t *)mCtx; - mCtx = NULL; - - mSource->stop(); - - mStarted = false; - - return OK; -} - -sp<MetaData> VPXDecoder::getFormat() { - return mFormat; -} - -status_t VPXDecoder::read( - MediaBuffer **out, const ReadOptions *options) { - *out = NULL; - - bool seeking = false; - int64_t seekTimeUs; - ReadOptions::SeekMode seekMode; - if (options && options->getSeekTo(&seekTimeUs, &seekMode)) { - seeking = true; - } - - MediaBuffer *input; - status_t err = mSource->read(&input, options); - - if (err != OK) { - return err; - } - - LOGV("read %d bytes from source\n", input->range_length()); - - if (seeking) { - int64_t targetTimeUs; - if (input->meta_data()->findInt64(kKeyTargetTime, &targetTimeUs) - && targetTimeUs >= 0) { - mTargetTimeUs = targetTimeUs; - } else { - mTargetTimeUs = -1; - } - } - - if (vpx_codec_decode( - (vpx_codec_ctx_t *)mCtx, - (uint8_t *)input->data() + input->range_offset(), - input->range_length(), - NULL, - 0)) { - LOGE("on2 decoder failed to decode frame."); - input->release(); - input = NULL; - - return UNKNOWN_ERROR; - } - - LOGV("successfully decoded 1 or more frames."); - - int64_t timeUs; - CHECK(input->meta_data()->findInt64(kKeyTime, &timeUs)); - - input->release(); - input = NULL; - - bool skipFrame = false; - - if (mTargetTimeUs >= 0) { - CHECK(timeUs <= mTargetTimeUs); - - if (timeUs < mTargetTimeUs) { - // We're still waiting for the frame with the matching - // timestamp and we won't return the current one. - skipFrame = true; - - LOGV("skipping frame at %lld us", timeUs); - } else { - LOGV("found target frame at %lld us", timeUs); - - mTargetTimeUs = -1; - } - } - - if (skipFrame) { - *out = new MediaBuffer(0); - return OK; - } - - vpx_codec_iter_t iter = NULL; - vpx_image_t *img = vpx_codec_get_frame((vpx_codec_ctx_t *)mCtx, &iter); - - if (img == NULL) { - // The VPX format supports "internal-only" frames that are - // referenced by future content but never actually displayed, so - // this is a perfectly valid scenario. - - *out = new MediaBuffer(0); - return OK; - } - - CHECK_EQ(img->fmt, IMG_FMT_I420); - - int32_t width = img->d_w; - int32_t height = img->d_h; - - if (width != mWidth || height != mHeight) { - LOGI("Image dimensions changed, width = %d, height = %d", - width, height); - - mWidth = width; - mHeight = height; - mFormat->setInt32(kKeyWidth, width); - mFormat->setInt32(kKeyHeight, height); - - mBufferSize = (mWidth * mHeight * 3) / 2; - delete mBufferGroup; - mBufferGroup = new MediaBufferGroup; - mBufferGroup->add_buffer(new MediaBuffer(mBufferSize)); - mBufferGroup->add_buffer(new MediaBuffer(mBufferSize)); - - return INFO_FORMAT_CHANGED; - } - - MediaBuffer *output; - CHECK_EQ(mBufferGroup->acquire_buffer(&output), OK); - - const uint8_t *srcLine = (const uint8_t *)img->planes[PLANE_Y]; - uint8_t *dst = (uint8_t *)output->data(); - for (size_t i = 0; i < img->d_h; ++i) { - memcpy(dst, srcLine, img->d_w); - - srcLine += img->stride[PLANE_Y]; - dst += img->d_w; - } - - srcLine = (const uint8_t *)img->planes[PLANE_U]; - for (size_t i = 0; i < img->d_h / 2; ++i) { - memcpy(dst, srcLine, img->d_w / 2); - - srcLine += img->stride[PLANE_U]; - dst += img->d_w / 2; - } - - srcLine = (const uint8_t *)img->planes[PLANE_V]; - for (size_t i = 0; i < img->d_h / 2; ++i) { - memcpy(dst, srcLine, img->d_w / 2); - - srcLine += img->stride[PLANE_V]; - dst += img->d_w / 2; - } - - output->set_range(0, (width * height * 3) / 2); - - output->meta_data()->setInt64(kKeyTime, timeUs); - - *out = output; - - return OK; -} - -} // namespace android - |