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  1. /*
  2. * Video Decode and Presentation API for UNIX (VDPAU) is used for
  3. * HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
  4. *
  5. * Copyright (c) 2008 NVIDIA
  6. *
  7. * This file is part of Libav.
  8. *
  9. * Libav is free software; you can redistribute it and/or
  10. * modify it under the terms of the GNU Lesser General Public
  11. * License as published by the Free Software Foundation; either
  12. * version 2.1 of the License, or (at your option) any later version.
  13. *
  14. * Libav is distributed in the hope that it will be useful,
  15. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17. * Lesser General Public License for more details.
  18. *
  19. * You should have received a copy of the GNU Lesser General Public
  20. * License along with Libav; if not, write to the Free Software
  21. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22. */
  23. #include <limits.h>
  24. #include "avcodec.h"
  25. #include "h264.h"
  26. #include "vc1.h"
  27. #undef NDEBUG
  28. #include <assert.h>
  29. #include "vdpau.h"
  30. #include "vdpau_internal.h"
  31. /**
  32. * @addtogroup VDPAU_Decoding
  33. *
  34. * @{
  35. */
  36. int ff_vdpau_common_start_frame(struct vdpau_picture_context *pic_ctx,
  37. av_unused const uint8_t *buffer,
  38. av_unused uint32_t size)
  39. {
  40. pic_ctx->bitstream_buffers_allocated = 0;
  41. pic_ctx->bitstream_buffers_used = 0;
  42. pic_ctx->bitstream_buffers = NULL;
  43. return 0;
  44. }
  45. #if CONFIG_H263_VDPAU_HWACCEL || CONFIG_MPEG1_VDPAU_HWACCEL || \
  46. CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
  47. CONFIG_VC1_VDPAU_HWACCEL || CONFIG_WMV3_VDPAU_HWACCEL
  48. int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
  49. {
  50. AVVDPAUContext *hwctx = avctx->hwaccel_context;
  51. MpegEncContext *s = avctx->priv_data;
  52. Picture *pic = s->current_picture_ptr;
  53. struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
  54. VdpVideoSurface surf = ff_vdpau_get_surface_id(pic->f);
  55. hwctx->render(hwctx->decoder, surf, (void *)&pic_ctx->info,
  56. pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
  57. ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
  58. av_freep(&pic_ctx->bitstream_buffers);
  59. return 0;
  60. }
  61. #endif
  62. int ff_vdpau_add_buffer(struct vdpau_picture_context *pic_ctx,
  63. const uint8_t *buf, uint32_t size)
  64. {
  65. VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
  66. buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
  67. (pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
  68. if (!buffers)
  69. return AVERROR(ENOMEM);
  70. pic_ctx->bitstream_buffers = buffers;
  71. buffers += pic_ctx->bitstream_buffers_used++;
  72. buffers->struct_version = VDP_BITSTREAM_BUFFER_VERSION;
  73. buffers->bitstream = buf;
  74. buffers->bitstream_bytes = size;
  75. return 0;
  76. }
  77. int av_vdpau_get_profile(AVCodecContext *avctx, VdpDecoderProfile *profile)
  78. {
  79. #define PROFILE(prof) \
  80. do { \
  81. *profile = prof; \
  82. return 0; \
  83. } while (0)
  84. switch (avctx->codec_id) {
  85. case AV_CODEC_ID_MPEG1VIDEO: PROFILE(VDP_DECODER_PROFILE_MPEG1);
  86. case AV_CODEC_ID_MPEG2VIDEO:
  87. switch (avctx->profile) {
  88. case FF_PROFILE_MPEG2_MAIN: PROFILE(VDP_DECODER_PROFILE_MPEG2_MAIN);
  89. case FF_PROFILE_MPEG2_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG2_SIMPLE);
  90. default: return AVERROR(EINVAL);
  91. }
  92. case AV_CODEC_ID_H263: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
  93. case AV_CODEC_ID_MPEG4:
  94. switch (avctx->profile) {
  95. case FF_PROFILE_MPEG4_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_SP);
  96. case FF_PROFILE_MPEG4_ADVANCED_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
  97. default: return AVERROR(EINVAL);
  98. }
  99. case AV_CODEC_ID_H264:
  100. switch (avctx->profile & ~FF_PROFILE_H264_INTRA) {
  101. case FF_PROFILE_H264_CONSTRAINED_BASELINE:
  102. case FF_PROFILE_H264_BASELINE: PROFILE(VDP_DECODER_PROFILE_H264_BASELINE);
  103. case FF_PROFILE_H264_MAIN: PROFILE(VDP_DECODER_PROFILE_H264_MAIN);
  104. case FF_PROFILE_H264_HIGH: PROFILE(VDP_DECODER_PROFILE_H264_HIGH);
  105. default: return AVERROR(EINVAL);
  106. }
  107. case AV_CODEC_ID_WMV3:
  108. case AV_CODEC_ID_VC1:
  109. switch (avctx->profile) {
  110. case FF_PROFILE_VC1_SIMPLE: PROFILE(VDP_DECODER_PROFILE_VC1_SIMPLE);
  111. case FF_PROFILE_VC1_MAIN: PROFILE(VDP_DECODER_PROFILE_VC1_MAIN);
  112. case FF_PROFILE_VC1_ADVANCED: PROFILE(VDP_DECODER_PROFILE_VC1_ADVANCED);
  113. default: return AVERROR(EINVAL);
  114. }
  115. }
  116. return AVERROR(EINVAL);
  117. }
  118. AVVDPAUContext *av_vdpau_alloc_context(void)
  119. {
  120. return av_mallocz(sizeof(AVVDPAUContext));
  121. }
  122. /* @}*/