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      1 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ppapi/cpp/video_decoder.h"
      6 
      7 #include "ppapi/c/pp_errors.h"
      8 #include "ppapi/c/ppb_video_decoder.h"
      9 #include "ppapi/cpp/completion_callback.h"
     10 #include "ppapi/cpp/instance_handle.h"
     11 #include "ppapi/cpp/module.h"
     12 #include "ppapi/cpp/module_impl.h"
     13 
     14 namespace pp {
     15 
     16 namespace {
     17 
     18 template <>
     19 const char* interface_name<PPB_VideoDecoder_0_1>() {
     20   return PPB_VIDEODECODER_INTERFACE_0_1;
     21 }
     22 
     23 template <>
     24 const char* interface_name<PPB_VideoDecoder_0_2>() {
     25   return PPB_VIDEODECODER_INTERFACE_0_2;
     26 }
     27 
     28 }  // namespace
     29 
     30 VideoDecoder::VideoDecoder() {
     31 }
     32 
     33 VideoDecoder::VideoDecoder(const InstanceHandle& instance) {
     34   if (has_interface<PPB_VideoDecoder_0_1>()) {
     35     PassRefFromConstructor(
     36         get_interface<PPB_VideoDecoder_0_1>()->Create(instance.pp_instance()));
     37   }
     38 }
     39 
     40 VideoDecoder::VideoDecoder(const VideoDecoder& other) : Resource(other) {
     41 }
     42 
     43 int32_t VideoDecoder::Initialize(const Graphics3D& context,
     44                                  PP_VideoProfile profile,
     45                                  PP_HardwareAcceleration acceleration,
     46                                  const CompletionCallback& cc) {
     47   if (has_interface<PPB_VideoDecoder_0_2>()) {
     48     return get_interface<PPB_VideoDecoder_0_2>()->Initialize(
     49         pp_resource(),
     50         context.pp_resource(),
     51         profile,
     52         acceleration,
     53         cc.pp_completion_callback());
     54   }
     55   if (has_interface<PPB_VideoDecoder_0_1>()) {
     56     if (acceleration == PP_HARDWAREACCELERATION_NONE)
     57       return cc.MayForce(PP_ERROR_NOTSUPPORTED);
     58     return get_interface<PPB_VideoDecoder_0_1>()->Initialize(
     59         pp_resource(),
     60         context.pp_resource(),
     61         profile,
     62         acceleration == PP_HARDWAREACCELERATION_WITHFALLBACK
     63             ? PP_TRUE
     64             : PP_FALSE,
     65         cc.pp_completion_callback());
     66   }
     67   return cc.MayForce(PP_ERROR_NOINTERFACE);
     68 }
     69 
     70 int32_t VideoDecoder::Decode(uint32_t decode_id,
     71                              uint32_t size,
     72                              const void* buffer,
     73                              const CompletionCallback& cc) {
     74   if (has_interface<PPB_VideoDecoder_0_2>()) {
     75     return get_interface<PPB_VideoDecoder_0_2>()->Decode(
     76         pp_resource(), decode_id, size, buffer, cc.pp_completion_callback());
     77   }
     78   if (has_interface<PPB_VideoDecoder_0_1>()) {
     79     return get_interface<PPB_VideoDecoder_0_1>()->Decode(
     80         pp_resource(), decode_id, size, buffer, cc.pp_completion_callback());
     81   }
     82   return cc.MayForce(PP_ERROR_NOINTERFACE);
     83 }
     84 
     85 int32_t VideoDecoder::GetPicture(
     86     const CompletionCallbackWithOutput<PP_VideoPicture>& cc) {
     87   if (has_interface<PPB_VideoDecoder_0_2>()) {
     88     return get_interface<PPB_VideoDecoder_0_2>()->GetPicture(
     89         pp_resource(), cc.output(), cc.pp_completion_callback());
     90   }
     91   if (has_interface<PPB_VideoDecoder_0_1>()) {
     92     return get_interface<PPB_VideoDecoder_0_1>()->GetPicture(
     93         pp_resource(), cc.output(), cc.pp_completion_callback());
     94   }
     95   return cc.MayForce(PP_ERROR_NOINTERFACE);
     96 }
     97 
     98 void VideoDecoder::RecyclePicture(const PP_VideoPicture& picture) {
     99   if (has_interface<PPB_VideoDecoder_0_2>()) {
    100     get_interface<PPB_VideoDecoder_0_2>()->RecyclePicture(pp_resource(),
    101                                                           &picture);
    102   } else if (has_interface<PPB_VideoDecoder_0_1>()) {
    103     get_interface<PPB_VideoDecoder_0_1>()->RecyclePicture(pp_resource(),
    104                                                           &picture);
    105   }
    106 }
    107 
    108 int32_t VideoDecoder::Flush(const CompletionCallback& cc) {
    109   if (has_interface<PPB_VideoDecoder_0_2>()) {
    110     return get_interface<PPB_VideoDecoder_0_2>()->Flush(
    111         pp_resource(), cc.pp_completion_callback());
    112   }
    113   if (has_interface<PPB_VideoDecoder_0_1>()) {
    114     return get_interface<PPB_VideoDecoder_0_1>()->Flush(
    115         pp_resource(), cc.pp_completion_callback());
    116   }
    117   return cc.MayForce(PP_ERROR_NOINTERFACE);
    118 }
    119 
    120 int32_t VideoDecoder::Reset(const CompletionCallback& cc) {
    121   if (has_interface<PPB_VideoDecoder_0_2>()) {
    122     return get_interface<PPB_VideoDecoder_0_2>()->Reset(
    123         pp_resource(), cc.pp_completion_callback());
    124   }
    125   if (has_interface<PPB_VideoDecoder_0_1>()) {
    126     return get_interface<PPB_VideoDecoder_0_1>()->Reset(
    127         pp_resource(), cc.pp_completion_callback());
    128   }
    129   return cc.MayForce(PP_ERROR_NOINTERFACE);
    130 }
    131 
    132 }  // namespace pp
    133