CMakeLists.txt: use GNUInstallDirs
[libam7xxx.git] / contrib / libam7xxx-compile-on-Ubuntu-14.04-LTS.diff
index f482b7e..d8b6b6f 100644 (file)
@@ -1,5 +1,18 @@
+diff --git a/examples/am7xxx-modeswitch.c b/examples/am7xxx-modeswitch.c
+index c304515..4f132d6 100644
+--- a/examples/am7xxx-modeswitch.c
++++ b/examples/am7xxx-modeswitch.c
+@@ -46,7 +46,7 @@ int main(void)
+               goto out;
+       }
+-      libusb_set_debug(NULL, LIBUSB_LOG_LEVEL_INFO);
++      libusb_set_debug(NULL, 3);
+       usb_device = libusb_open_device_with_vid_pid(NULL,
+                                                    AM7XXX_STORAGE_VID,
 diff --git a/examples/am7xxx-play.c b/examples/am7xxx-play.c
-index 46a91c9..fed455f 100644
+index 81aff84..1ee42e0 100644
 --- a/examples/am7xxx-play.c
 +++ b/examples/am7xxx-play.c
 @@ -31,7 +31,6 @@
@@ -10,26 +23,215 @@ index 46a91c9..fed455f 100644
  #include <libswscale/swscale.h>
  
  #include <am7xxx.h>
-@@ -308,7 +307,7 @@ static int am7xxx_play(const char *input_format_string,
+@@ -51,10 +50,10 @@ static int video_input_init(struct video_input_ctx *input_ctx,
+ {
+       AVInputFormat *input_format = NULL;
+       AVFormatContext *input_format_ctx;
+-      AVCodecParameters *input_codec_params;
+       AVCodecContext *input_codec_ctx;
+       AVCodec *input_codec;
+       int video_index;
++      unsigned int i;
+       int ret;
+       avdevice_register_all();
+@@ -99,32 +98,34 @@ static int video_input_init(struct video_input_ctx *input_ctx,
+       av_dump_format(input_format_ctx, 0, input_path, 0);
+       /* look for the first video_stream */
+-      video_index = av_find_best_stream(input_format_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, &input_codec, 0);
+-      if (video_index < 0) {
++      video_index = -1;
++      for (i = 0; i < input_format_ctx->nb_streams; i++)
++              if (input_format_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
++                      video_index = i;
++                      break;
++              }
++      if (video_index == -1) {
+               fprintf(stderr, "cannot find any video streams\n");
+               ret = -EINVAL;
+               goto cleanup;
+       }
+-      input_codec_ctx = avcodec_alloc_context3(input_codec);
+-      if (input_codec_ctx == NULL) {
+-              fprintf(stderr, "failed to allocate the input codec context\n");
+-              ret = -ENOMEM;
+-              goto cleanup;
+-      }
++      /* get a pointer to the codec context for the video stream */
++      input_codec_ctx = input_format_ctx->streams[video_index]->codec;
+-      input_codec_params = input_format_ctx->streams[video_index]->codecpar;
+-      ret = avcodec_parameters_to_context(input_codec_ctx, input_codec_params);
+-      if (ret < 0) {
+-              fprintf(stderr, "cannot copy parameters to input codec context\n");
+-              goto cleanup_ctx;
++      /* find the decoder for the video stream */
++      input_codec = avcodec_find_decoder(input_codec_ctx->codec_id);
++      if (input_codec == NULL) {
++              fprintf(stderr, "input_codec is NULL!\n");
++              ret = -EINVAL;
++              goto cleanup;
+       }
+       /* open the decoder */
+       ret = avcodec_open2(input_codec_ctx, input_codec, NULL);
+       if (ret < 0) {
+               fprintf(stderr, "cannot open input codec\n");
+-              goto cleanup_ctx;
++              goto cleanup;
+       }
+       input_ctx->format_ctx = input_format_ctx;
+@@ -134,8 +135,6 @@ static int video_input_init(struct video_input_ctx *input_ctx,
+       ret = 0;
+       goto out;
+-cleanup_ctx:
+-      avcodec_free_context(&input_codec_ctx);
+ cleanup:
+       avformat_close_input(&input_format_ctx);
+ out:
+@@ -177,7 +176,7 @@ static int video_output_init(struct video_output_ctx *output_ctx,
+               goto out;
+       }
+-      /* Calculate the new output dimension so the original frame is shown
++      /* Calculate the new output dimension so the original picture is shown
+        * in its entirety */
+       ret = am7xxx_calc_scaled_image_dimensions(dev,
+                                                 upscale,
+@@ -226,7 +225,7 @@ static int video_output_init(struct video_output_ctx *output_ctx,
+       output_codec_ctx->qmin       = output_codec_ctx->qmax = ((100 - (quality - 1)) * FF_QUALITY_SCALE) / 100;
+       output_codec_ctx->mb_lmin    = output_codec_ctx->qmin * FF_QP2LAMBDA;
+       output_codec_ctx->mb_lmax    = output_codec_ctx->qmax * FF_QP2LAMBDA;
+-      output_codec_ctx->flags      |= AV_CODEC_FLAG_QSCALE;
++      output_codec_ctx->flags      |= CODEC_FLAG_QSCALE;
+       output_codec_ctx->global_quality = output_codec_ctx->qmin * FF_QP2LAMBDA;
+       /* find the encoder */
+@@ -257,67 +256,6 @@ out:
+ }
+-/*
+- * Wrap the new avcodec API from FFMpeg 3.1 to minimize the changes in the
+- * user code.
+- *
+- * If the use of the wrappers were to be made conditional, a check like the
+- * following could be used:
+- *
+- *    #if (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 48, 101))
+- *
+- * As derived from the APIchanges document:
+- * https://github.com/FFmpeg/FFmpeg/blob/master/doc/APIchanges
+- *
+- * The wrapper implementation has been taken from:
+- * https://blogs.gentoo.org/lu_zero/2016/03/29/new-avcodec-api/
+- */
+-static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
+-{
+-      int ret;
+-
+-      *got_frame = 0;
+-
+-      if (pkt) {
+-              ret = avcodec_send_packet(avctx, pkt);
+-              /*
+-               * In particular, we don't expect AVERROR(EAGAIN), because we
+-               * read all decoded frames with avcodec_receive_frame() until
+-               * done.
+-               */
+-              if (ret < 0)
+-                      return ret == AVERROR_EOF ? 0 : ret;
+-      }
+-
+-      ret = avcodec_receive_frame(avctx, frame);
+-      if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
+-              return ret;
+-      if (ret >= 0)
+-              *got_frame = 1;
+-
+-      return 0;
+-}
+-
+-static int encode(AVCodecContext *avctx, AVPacket *pkt, int *got_packet, AVFrame *frame)
+-{
+-      int ret;
+-
+-      *got_packet = 0;
+-
+-      ret = avcodec_send_frame(avctx, frame);
+-      if (ret < 0)
+-              return ret;
+-
+-      ret = avcodec_receive_packet(avctx, pkt);
+-      if (!ret)
+-              *got_packet = 1;
+-      if (ret == AVERROR(EAGAIN))
+-              return 0;
+-
+-      return ret;
+-}
+-
+-
+ static int am7xxx_play(const char *input_format_string,
+                      AVDictionary **input_options,
+                      const char *input_path,
+@@ -330,16 +268,16 @@ static int am7xxx_play(const char *input_format_string,
+ {
+       struct video_input_ctx input_ctx;
+       struct video_output_ctx output_ctx;
+-      AVFrame *frame_raw;
+-      AVFrame *frame_scaled;
++      AVFrame *picture_raw;
++      AVFrame *picture_scaled;
+       int out_buf_size;
+       uint8_t *out_buf;
+-      int out_frame_size;
+-      uint8_t *out_frame;
++      int out_picture_size;
++      uint8_t *out_picture;
+       struct SwsContext *sw_scale_ctx;
+       AVPacket in_packet;
+       AVPacket out_packet;
+-      int got_frame;
++      int got_picture;
+       int got_packet;
+       int ret;
+@@ -356,44 +294,41 @@ static int am7xxx_play(const char *input_format_string,
        }
  
        /* allocate an input frame */
--      picture_raw = av_frame_alloc();
+-      frame_raw = av_frame_alloc();
+-      if (frame_raw == NULL) {
+-              fprintf(stderr, "cannot allocate the raw frame!\n");
 +      picture_raw = avcodec_alloc_frame();
-       if (picture_raw == NULL) {
-               fprintf(stderr, "cannot allocate the raw picture frame!\n");
++      if (picture_raw == NULL) {
++              fprintf(stderr, "cannot allocate the raw picture frame!\n");
                ret = -ENOMEM;
-@@ -316,7 +315,7 @@ static int am7xxx_play(const char *input_format_string,
+               goto cleanup_output;
        }
  
        /* allocate output frame */
--      picture_scaled = av_frame_alloc();
+-      frame_scaled = av_frame_alloc();
+-      if (frame_scaled == NULL) {
+-              fprintf(stderr, "cannot allocate the scaled frame!\n");
 +      picture_scaled = avcodec_alloc_frame();
-       if (picture_scaled == NULL) {
-               fprintf(stderr, "cannot allocate the scaled picture!\n");
++      if (picture_scaled == NULL) {
++              fprintf(stderr, "cannot allocate the scaled picture!\n");
                ret = -ENOMEM;
-@@ -327,10 +326,9 @@ static int am7xxx_play(const char *input_format_string,
-       picture_scaled->height = (output_ctx.codec_ctx)->height;
+-              goto cleanup_frame_raw;
++              goto cleanup_picture_raw;
+       }
+-      frame_scaled->format = (output_ctx.codec_ctx)->pix_fmt;
+-      frame_scaled->width = (output_ctx.codec_ctx)->width;
+-      frame_scaled->height = (output_ctx.codec_ctx)->height;
++      picture_scaled->format = (output_ctx.codec_ctx)->pix_fmt;
++      picture_scaled->width = (output_ctx.codec_ctx)->width;
++      picture_scaled->height = (output_ctx.codec_ctx)->height;
  
        /* calculate the bytes needed for the output image and create buffer for the output image */
 -      out_buf_size = av_image_get_buffer_size((output_ctx.codec_ctx)->pix_fmt,
@@ -42,17 +244,20 @@ index 46a91c9..fed455f 100644
        out_buf = av_malloc(out_buf_size * sizeof(uint8_t));
        if (out_buf == NULL) {
                fprintf(stderr, "cannot allocate output data buffer!\n");
-@@ -339,13 +337,11 @@ static int am7xxx_play(const char *input_format_string,
+               ret = -ENOMEM;
+-              goto cleanup_frame_scaled;
++              goto cleanup_picture_scaled;
        }
  
-       /* assign appropriate parts of buffer to image planes in picture_scaled */
--      av_image_fill_arrays(picture_scaled->data,
--                           picture_scaled->linesize,
+-      /* assign appropriate parts of buffer to image planes in frame_scaled */
+-      av_image_fill_arrays(frame_scaled->data,
+-                           frame_scaled->linesize,
 -                           out_buf,
 -                           (output_ctx.codec_ctx)->pix_fmt,
 -                           (output_ctx.codec_ctx)->width,
 -                           (output_ctx.codec_ctx)->height,
 -                           1);
++      /* assign appropriate parts of buffer to image planes in picture_scaled */
 +      avpicture_fill((AVPicture *)picture_scaled,
 +                     out_buf,
 +                     (output_ctx.codec_ctx)->pix_fmt,
@@ -61,7 +266,95 @@ index 46a91c9..fed455f 100644
  
        sw_scale_ctx = sws_getCachedContext(NULL,
                                            (input_ctx.codec_ctx)->width,
-@@ -458,17 +454,17 @@ static int am7xxx_play(const char *input_format_string,
+@@ -430,8 +365,8 @@ static int am7xxx_play(const char *input_format_string,
+               }
+               /* decode */
+-              got_frame = 0;
+-              ret = decode(input_ctx.codec_ctx, frame_raw, &got_frame, &in_packet);
++              got_picture = 0;
++              ret = avcodec_decode_video2(input_ctx.codec_ctx, picture_raw, &got_picture, &in_packet);
+               if (ret < 0) {
+                       fprintf(stderr, "cannot decode video\n");
+                       run = 0;
+@@ -439,41 +374,41 @@ static int am7xxx_play(const char *input_format_string,
+               }
+               /* if we got the complete frame */
+-              if (got_frame) {
++              if (got_picture) {
+                       /*
+-                       * Rescaling the frame also changes its pixel format
++                       * Rescaling the picture also changes its pixel format
+                        * to the raw format supported by the projector if
+                        * this was set in video_output_init()
+                        */
+                       sws_scale(sw_scale_ctx,
+-                                (const uint8_t * const *)frame_raw->data,
+-                                frame_raw->linesize,
++                                (const uint8_t * const *)picture_raw->data,
++                                picture_raw->linesize,
+                                 0,
+                                 (input_ctx.codec_ctx)->height,
+-                                frame_scaled->data,
+-                                frame_scaled->linesize);
++                                picture_scaled->data,
++                                picture_scaled->linesize);
+                       if (output_ctx.raw_output) {
+-                              out_frame = out_buf;
+-                              out_frame_size = out_buf_size;
++                              out_picture = out_buf;
++                              out_picture_size = out_buf_size;
+                       } else {
+-                              frame_scaled->quality = (output_ctx.codec_ctx)->global_quality;
++                              picture_scaled->quality = (output_ctx.codec_ctx)->global_quality;
+                               av_init_packet(&out_packet);
+                               out_packet.data = NULL;
+                               out_packet.size = 0;
+                               got_packet = 0;
+-                              ret = encode(output_ctx.codec_ctx,
+-                                           &out_packet,
+-                                           &got_packet,
+-                                           frame_scaled);
++                              ret = avcodec_encode_video2(output_ctx.codec_ctx,
++                                                          &out_packet,
++                                                          picture_scaled,
++                                                          &got_packet);
+                               if (ret < 0 || !got_packet) {
+                                       fprintf(stderr, "cannot encode video\n");
+                                       run = 0;
+                                       goto end_while;
+                               }
+-                              out_frame = out_packet.data;
+-                              out_frame_size = out_packet.size;
++                              out_picture = out_packet.data;
++                              out_picture_size = out_packet.size;
+                       }
+ #ifdef DEBUG
+@@ -485,7 +420,7 @@ static int am7xxx_play(const char *input_format_string,
+                               else
+                                       snprintf(filename, NAME_MAX, "out.raw");
+                               file = fopen(filename, "wb");
+-                              fwrite(out_frame, 1, out_frame_size, file);
++                              fwrite(out_picture, 1, out_picture_size, file);
+                               fclose(file);
+                       }
+ #else
+@@ -496,8 +431,8 @@ static int am7xxx_play(const char *input_format_string,
+                                                     image_format,
+                                                     (output_ctx.codec_ctx)->width,
+                                                     (output_ctx.codec_ctx)->height,
+-                                                    out_frame,
+-                                                    out_frame_size);
++                                                    out_picture,
++                                                    out_picture_size);
+                       if (ret < 0) {
+                               perror("am7xxx_send_image_async");
+                               run = 0;
+@@ -506,17 +441,17 @@ static int am7xxx_play(const char *input_format_string,
                }
  end_while:
                if (!output_ctx.raw_output && got_packet)
@@ -74,20 +367,30 @@ index 46a91c9..fed455f 100644
        sws_freeContext(sw_scale_ctx);
  cleanup_out_buf:
        av_free(out_buf);
- cleanup_picture_scaled:
--      av_frame_free(&picture_scaled);
+-cleanup_frame_scaled:
+-      av_frame_free(&frame_scaled);
+-cleanup_frame_raw:
+-      av_frame_free(&frame_raw);
++cleanup_picture_scaled:
 +      avcodec_free_frame(&picture_scaled);
- cleanup_picture_raw:
--      av_frame_free(&picture_raw);
++cleanup_picture_raw:
 +      avcodec_free_frame(&picture_raw);
  
  cleanup_output:
-       /* av_free is needed as well,
+       /* Freeing the codec context is needed as well,
+@@ -527,7 +462,6 @@ cleanup_output:
+ cleanup_input:
+       avcodec_close(input_ctx.codec_ctx);
+-      avcodec_free_context(&(input_ctx.codec_ctx));
+       avformat_close_input(&(input_ctx.format_ctx));
+ out:
 diff --git a/src/am7xxx.c b/src/am7xxx.c
-index 84d7e9c..f26fc18 100644
+index 8573a59..fd726af 100644
 --- a/src/am7xxx.c
 +++ b/src/am7xxx.c
-@@ -1106,7 +1106,7 @@ AM7XXX_PUBLIC int am7xxx_init(am7xxx_context **ctx)
+@@ -1117,7 +1117,7 @@ AM7XXX_PUBLIC int am7xxx_init(am7xxx_context **ctx)
                goto out_free_context;
        }